https://restorerivers.eu/wiki/api.php?action=feedcontributions&feedformat=atom&user=Kasvio 2026-04-25T14:56:02Z User contributions MediaWiki 1.39.7 https://restorerivers.eu/wiki/index.php?title=Case_study:Massadammen-dam_removal_in_River_Tabergs%C3%A5n&diff=33897 2015-02-03T13:02:29Z

<p>Kasvio: Reverted edits by JoshRRC (talk) to last revision by Admin</p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=57.70679547042289, 14.116508960723877<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydropower, Hydromorphology, Spatial planning<br /> |Country=Sweden<br /> |Main contact forename=Peter<br /> |Main contact surname=Lindvall<br /> |Contact organisation=Länsstyrelsen i Jönköpings län<br /> |Contact organisation url=projektwebbar.lansstyrelsen.se/vattern/Sv/besoksmal-vatterbackar/tabergsan/Pages/5-massadammen.aspx<br /> |Multi-site=No<br /> |Project picture=Massadammen-dam removal (photo. Maria Arola).JPG<br /> |Picture description=After restoration (photo. Maria Arola)<br /> |Project summary=Massadammen dam in the South of Jönköping in the River Tabergsån. The dam was built in 1906 for hydropower but the hydro power station was shut down in 1950´s. Because the dam was an obsticle for migrating fish it was decided to remove to improve the conditions for fish. The aim was to build fishpassage, increase the spawning areas for trout and to reduce the regulation and maintenance of the dam. The first plan of the restoration met heavy resistace from the local people because they wanted to maintain the water level. The new plan was made and three dams were built instead of one in the dammed area. The project was good example of the co-operation between different organization (municipality, consultants and local people) to find a goos solution for all parties. <br /> <br /> Most of the work was done between early august to late october in 2011. Because of the restoration spawning area for fish increased from 29 000 to 36 000 m2. Also densities of trout increased in the upstream. Densities were measured to be 5 times higher after than before restorations. Total cost of the project was approximately 174 000 euros.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=After restoration (photo. Maria Arola).JPG<br /> |Caption=Restored channel (photo. Maria Arola)<br /> }}<br /> {{Case study image<br /> |File name=Dam (photo. Maria Arola).JPG<br /> |Caption=Removed dam (photo. Maria Arola)<br /> }}<br /> {{Case study image<br /> |File name=Gra(photo. Maria Arola).JPG<br /> |Caption=Added gravel (photo. Maria Arola)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Massadammen-Motala Ström <br /> |WFD water body code=067<br /> |WFD water body name=Tabergsån<br /> |Pre-project morphology=Embanked, Artificial bed, Artificial channel, <br /> |Heavily modified water body=Yes<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated, <br /> }}<br /> {{Project background<br /> |Project started=2007<br /> |Works started=2011/08/01<br /> |Works completed=2011/10/31<br /> |Project completed=2011/10/31<br /> |Total cost category=100 - 500 k€<br /> |Total1 cost=174<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Barriers to fish migration, Hydropower, <br /> |Hydromorphological quality elements=Continuity for organisms, <br /> |Biological quality elements=Fish, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:The_restoration_of_the_Sotovo_lake:_Volga-Akhtuba_floodplain&diff=19748 2013-12-19T13:03:15Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=48.53226756334836, 44.8592034727335<br /> }}<br /> {{Project overview<br /> |Status=In progress<br /> |Themes=Habitat and biodiversity, Monitoring, Social benefits<br /> |Country=Russia<br /> |Main contact forename=Dmitry<br /> |Main contact surname=Zolotarev<br /> |Main contact id=Dzolotaryov<br /> |Multi-site=No<br /> |Project picture=DEM.jpg<br /> |Project summary=Volga-Akhtuba floodplain is one of the biggest floodplains in Europe. The lower part of the Volga basin (downstream Volgograd and Volzhskaya hydro-electric power station) remains more or less in its natural conditions while the rest of the Volga river represents the cascade of the dams and reservoirs for electric power production. During the hydrological monitoring which our group (Filippov O.V.) has started at 2001 it has been found out that some territories of the floodplain (some local ecosystems) have been very depressed. The reasons for such a situation are: 1. construction of the Volzhskaya HPP in 1958 which has been regulating the discharge of the water in the following way: the amount of the water hasn’t been changed but the distribution has been violated (winter discharges became larger; summer – less); 2. Local population during decades has used the territory for agriculture – plant growing and local dikes and dams were needed; 3. One of such places – the lake Sotovo – was surrounded with dikes to prevent flooding to come to the neighboring territories which were used for gardening. In 2006 the UNDP project named “Conservation of Wetlands Biodiversity in the Lower Volga Region” started. The group of scientists with the specialists of the project discussed some places for restoration in the floodplain and the Sotovo Lake was chosen. The lake was completely dried out because as we found out later it was surrounded with dikes and the paths for water from the river which should feed the lake from upper flow were closed. The main aim was to re-install the natural flooding regime at the Sotovo lake. To reach the aim it was decided to remove some parts of the earthen dike and to construct an installation (dam) for water level regulation.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19747 2013-12-19T10:59:19Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Korvajoki after 2011.JPG<br /> |Picture description=THe River Korvajoki after restoration year 2013 (photo J. Huhtala)<br /> |Project summary=The River Korvajoki is 2 900 meters long and it flows though forest areas from the Lake Korvajärvi to the Lake Simojärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Tree junks and other wooden material was used to make the flow more versatile and give more sheltered areas for juveline fish and living habitats and food for macro inveretbrates.<br /> <br /> The lenght of the first restored area is 1 170 meters and the width is 2,5 in average the area in total was 3 000 m2. The second was not restored in anyhw beacuse there are several extremely vulnerable pearl mussels (Margaritifera margaritifera). The thirds section was 600 meters, width 3 meters and the area was 2 000 m2. The flow in that sections was slow so the gravel, rocks and wooden particles were placed in the channel to make the flow curve more.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Korvajoki before 2011.JPG<br /> |Caption=The river Korvajoki before any restoration work (year 2011).<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brook trout, Brown trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 930<br /> |Project started=2013/03/03<br /> |Works started=2013/04/01<br /> |Works completed=2013/06/02<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19746 2013-12-19T10:58:44Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Korvajoki after 2011.JPG<br /> |Picture description=THe River Korvajoki after restoration year 2013 (photo J. Huhtala)<br /> |Project summary=The River Korvajoki is 2 900 meters long and it flows though forest areas from the Lake Korvajärvi to the Lake Simojärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Tree junks and other wooden material was used to make the flow more versatile and give more sheltered areas for juveline fish and living habitats and food for macro inveretbrates.<br /> <br /> The lenght of the first restored area is 1 170 meters and the width is 2,5 in average the area in total was 3 000 m2. The second was not restored in anyhw beacuse there are several extremely vulnerable pearl mussels (Margaritifera margaritifera). The thirds section was 600 meters, width 3 meters and the area was 2 000 m2. The flow in that sections was slow so the gravel, rocks and wooden particles were placed in the channel to make the flow curve more.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Korvajoki before 2011.JPG<br /> |Caption=The river Korvajoki before any restoration work (year 2011).<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brook trout, Brown trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 930<br /> |Project started=2013/03/03<br /> |Works started=2013/04/01<br /> |Works completed=2013/06/02<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19745 2013-12-19T10:58:06Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Korvajoki after 2011.JPG<br /> |Picture description=THe River Korvajoki after restoration year 2013 (photo J. Huhtala)<br /> |Project summary=The River Korvajoki is 2 900 meters long and it flows though forest areas from the Lake Korvajärvi to the Lake Simojärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Tree junks and other wooden material was used to make the flow more versatile and give more sheltered areas for juveline fish and living habitats and food for macro inveretbrates.<br /> <br /> The lenght of the first restored area is 1 170 meters and the width is 2,5 in average the area in total was 3 000 m2. The second was not restored in anyhw beacuse there are several extremely vulnerable pearl mussels (Margaritifera margaritifera). The thirds section was 600 meters, width 3 meters and the area was 2 000 m2. The flow in that sections was slow so the gravel, rocks and wooden particles were placed in the channel to make the flow curve more.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Korvajoki before 2011.JPG<br /> |Caption=The river Korvajoki before any restoration work (year 2011).<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brook trout, Brown trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 930<br /> |Project started=2013/03/03<br /> |Works started=2013/04/01<br /> |Works completed=2013/06/02<br /> }}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19744 2013-12-19T10:57:16Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Korvajoki after 2011.JPG<br /> |Picture description=THe River Korvajoki after restoration year 2013 (photo J. Huhtala)<br /> |Project summary=The River Korvajoki is 2 900 meters long and it flows though forest areas from the Lake Korvajärvi to the Lake Simojärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Tree junks and other wooden material was used to make the flow more versatile and give more sheltered areas for juveline fish and living habitats and food for macro inveretbrates.<br /> <br /> The lenght of the first restored area is 1 170 meters and the width is 2,5 in average the area in total was 3 000 m2. The second was not restored in anyhw beacuse there are several extremely vulnerable pearl mussels (Margaritifera margaritifera). The thirds section was 600 meters, width 3 meters and the area was 2 000 m2. The flow in that sections was slow so the gravel, rocks and wooden particles were placed in the channel to make the flow curve more.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Korvajoki before 2011.JPG<br /> |Caption=The river Korvajoki before any restoration work (year 2011).<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brook trout, Brown trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19743 2013-12-19T10:56:26Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Korvajoki after 2011.JPG<br /> |Picture description=THe River Korvajoki after restoration year 2013 (photo J. Huhtala)<br /> |Project summary=The River Korvajoki is 2 900 meters long and it flows though forest areas from the Lake Korvajärvi to the Lake Simojärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Tree junks and other wooden material was used to make the flow more versatile and give more sheltered areas for juveline fish and living habitats and food for macro inveretbrates.<br /> <br /> The lenght of the first restored area is 1 170 meters and the width is 2,5 in average the area in total was 3 000 m2. The second was not restored in anyhw beacuse there are several extremely vulnerable pearl mussels (Margaritifera margaritifera). The thirds section was 600 meters, width 3 meters and the area was 2 000 m2. The flow in that sections was slow so the gravel, rocks and wooden particles were placed in the channel to make the flow curve more.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Korvajoki before 2011.JPG<br /> |Caption=The river Korvajoki before any restoration work (year 2011).<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Korvajoki_before_2011.JPG&diff=19742 2013-12-19T10:56:05Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19741 2013-12-19T10:55:42Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Korvajoki after 2011.JPG<br /> |Picture description=THe River Korvajoki after restoration year 2013 (photo J. Huhtala)<br /> |Project summary=The River Korvajoki is 2 900 meters long and it flows though forest areas from the Lake Korvajärvi to the Lake Simojärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Tree junks and other wooden material was used to make the flow more versatile and give more sheltered areas for juveline fish and living habitats and food for macro inveretbrates.<br /> <br /> The lenght of the first restored area is 1 170 meters and the width is 2,5 in average the area in total was 3 000 m2. The second was not restored in anyhw beacuse there are several extremely vulnerable pearl mussels (Margaritifera margaritifera). The thirds section was 600 meters, width 3 meters and the area was 2 000 m2. The flow in that sections was slow so the gravel, rocks and wooden particles were placed in the channel to make the flow curve more.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Korvajoki_after_2011.JPG&diff=19740 2013-12-19T10:48:43Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Korvajoki&diff=19739 2013-12-19T10:48:14Z

<p>Kasvio: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=66.04713118347337, 27.309608459472656 }} {{Project overview |Project title=Restoration of the River Korvajok...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.04713118347337, 27.309608459472656<br /> }}<br /> {{Project overview<br /> |Project title=Restoration of the River Korvajoki<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19738 2013-12-19T10:45:02Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Keskijoki.JPG<br /> |Picture description=The River Keskijoki.<br /> |Project summary=The River Keskijoki is 1 800 meters long and it flows though forest areas from the Lake Yli-Soppanajärvi to the Lake Soppanajärvi. The river bed is mainly sand and contains rocks and gravel. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> The lenght of the first restored area is 545 meters and the width is 8 in average the area in total was 4 360 m2. The Second was 150 meters long, width 8 meters and the area in total was 1 200 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 200 meters, width 5 meters and the area was 1000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Flow velocities, Width &amp; depth variation, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19737 2013-12-19T10:44:07Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paha-Paasojoki before.JPG<br /> |Caption=The River Paha-Paasonjoki before the restoration (photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 280<br /> |Project started=2011/03/04<br /> |Works completed=2012/12/29<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Flow velocities, Channel pattern/planform, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19736 2013-12-19T10:42:01Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows though forest areas from the Lake Paasonjärvi to the Lake Yli-Soppanajärvi. The catchment area is 97,92 km2.<br /> The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state.<br /> Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> Also in the section three, the channel curve was altered in few places so that the erosion that occured in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The restored rapid area in the totally was 1900 m2. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The thirds section was 300 meters, width 6 meters and the area was 1 800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2. The elevations difference in the restored area was 18 meters.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paasonjoki before.JPG<br /> |Caption=The River Paasonjoki before the restoration (Photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19735 2013-12-19T10:35:40Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2. The elevation variation between the areas is 1,43 meters.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Dominant substrate=Sand, Gravel, <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background<br /> |Reach length directly affected=710<br /> |Project started=2011/04/03<br /> |Works started=2013/06/02<br /> |Works completed=2013/10/31<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19734 2013-12-19T10:35:23Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2. The elevation variation between the areas is 1,43 meters.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Dominant substrate=Sand, Gravel, <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background<br /> |Reach length directly affected=710<br /> |Project started=2011/04/03<br /> |Works started=2013/06/02<br /> |Works completed=2013/10/31<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19733 2013-12-19T10:33:11Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Dominant substrate=Sand, Gravel, <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background<br /> |Reach length directly affected=710<br /> |Project started=2011/04/03<br /> |Works started=2013/06/02<br /> |Works completed=2013/10/31<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19732 2013-12-19T10:32:18Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Dominant substrate=Sand, Gravel, <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background<br /> |Project started=2011/04/03<br /> |Works started=2013/06/02<br /> |Works completed=2013/10/31<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19731 2013-12-19T10:31:20Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Dominant substrate=Sand, Gravel, <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background<br /> |Project started=2011/04/03<br /> |Works started=2013/06/02<br /> |Works completed=2013/10/31<br /> }}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19730 2013-12-19T10:30:22Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Dominant substrate=Sand, Gravel, <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19729 2013-12-19T10:29:09Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki after 2013.JPG<br /> |Picture description=River Impiönjoki after the restoration (photo J.Huhtala)<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Impionjoki_after_2013.JPG&diff=19728 2013-12-19T10:29:02Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19727 2013-12-19T10:27:39Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Impionjoki before 2013.JPG<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Impionjoki_before_2013.JPG&diff=19726 2013-12-19T10:27:32Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19725 2013-12-19T10:25:21Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project summary=The River Impiönjoki is a short river only 495 meters long and it flows from the Lake Impiönjärvi to the Lake Simonjärvi. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river, and in the channel were used in the restoration work. Also the wooden particles were used during the retoration work in the channel to make more curves and veratility to the river flow.<br /> <br /> Also in the section two the culvert that enabled the fish to migrate was alered with rocks and gravel so that the fish could travel upwards. <br /> <br /> The lenght of the first restored area is 10 meters and the width is 8 in average. The total area that was restored was 100 m2. The second part was 650 meters long, width 5 meters and the area in total was 3 300 m2. The thirds section was 50 meters, width 6 meters and the area was 300 m2. <br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Impi%C3%B6njoki&diff=19724 2013-12-19T10:07:44Z

<p>Kasvio: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=65.98459308486954, 27.204079627990723 }} {{Project overview |Project title=Restoration of the River Impiönj...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=65.98459308486954, 27.204079627990723<br /> }}<br /> {{Project overview<br /> |Project title=Restoration of the River Impiönjoki<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19722 2013-12-19T09:05:10Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paha-Paasojoki before.JPG<br /> |Caption=The River Paha-Paasonjoki before the restoration (photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 280<br /> |Project started=2011/03/04<br /> |Works completed=2012/12/29<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Flow velocities, Channel pattern/planform, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19721 2013-12-19T09:04:54Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paha-Paasojoki before.JPG<br /> |Caption=The River Paha-Paasonjoki before the restoration (photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 280<br /> |Project started=2011/03/04<br /> |Works completed=2012/12/29<br /> }}<br /> {{Motivations<br /> |Hydromorphological quality elements=Flow velocities, Channel pattern/planform, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19720 2013-12-19T09:04:05Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paha-Paasojoki before.JPG<br /> |Caption=The River Paha-Paasonjoki before the restoration (photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background<br /> |Reach length directly affected=1 280<br /> |Project started=2011/03/04<br /> |Works completed=2012/12/29<br /> }}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19719 2013-12-19T09:02:53Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paha-Paasojoki before.JPG<br /> |Caption=The River Paha-Paasonjoki before the restoration (photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=2 - 5 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19718 2013-12-19T09:01:57Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paha-Paasojoki before.JPG<br /> |Caption=The River Paha-Paasonjoki before the restoration (photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Paha-Paasojoki_before.JPG&diff=19717 2013-12-19T09:01:38Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19716 2013-12-19T09:01:12Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19715 2013-12-19T09:00:38Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paha-Paasojoki after.JPG<br /> |Picture description=The river Paha-Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paha-Paasonjoki is 2 020 meters long and it flows though forest areas from the Lake Paha-Paasonjärvi to the river Paasonjoki. The catchment area is 97,92 km2. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the River. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work. Also wooden material was used to give more habiitats for invertebrates and versatility to the river flow.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> <br /> The lenght of the first restored area is 260 meters and the width is 3,5 in average and the total area of the restoration is 1 000 m2. There are a lot of moss and algae growth because of eutrofication and nutirens coming from the forestry ares above the area. The nesting gravel is partly covered up with sand and sediment. The second was 640 meters long, width 4 meters and the area in total was 2 560 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 460 meters, width 4 meters and the area was 2 000 m2. <br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Paha-Paasojoki_after.JPG&diff=19714 2013-12-19T08:53:38Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paha-Paasonjoki&diff=19713 2013-12-19T08:52:16Z

<p>Kasvio: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=66.09879010912505, 27.42136001586914 }} {{Project overview |Project title=Restoration of the River Paha-Paas...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09879010912505, 27.42136001586914<br /> }}<br /> {{Project overview<br /> |Project title=Restoration of the River Paha-Paasonjoki<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19712 2013-12-19T08:47:39Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows though forest areas from the Lake Paasonjärvi to the Lake Yli-Soppanajärvi. The catchment area is 97,92 km2.<br /> The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state.<br /> Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 300 meters, width 6 meters and the area was 1 800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2. The elevations difference in the restored area was 18 meters.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paasonjoki before.JPG<br /> |Caption=The River Paasonjoki before the restoration (Photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19711 2013-12-19T08:44:44Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Keskijoki.JPG<br /> |Picture description=The River Keskijoki.<br /> |Project summary=The River Keskijoki is 1 800 meters long and it flows though forest areas from the Lake Yli-Soppanajärvi to the Lake Soppanajärvi. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> The lenght of the first restored area is 545 meters and the width is 8 in average the area in total was 4 360 m2. The Second was 150 meters long, width 8 meters and the area in total was 1 200 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 200 meters, width 5 meters and the area was 1000 m2. <br /> <br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Flow velocities, Width &amp; depth variation, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19710 2013-12-19T08:44:23Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Keskijoki.JPG<br /> |Picture description=The River Keskijoki.<br /> |Project summary=The River Keskijoki is 1 800 meters long and it flows though forest areas from the Lake Yli-Soppanajärvi to the Lake Soppanajärvi. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> The lenght of the first restored area is 545 meters and the width is 8 in average the area in total was 4 360 m2. The Second was 150 meters long, width 8 meters and the area in total was 1 200 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 200 meters, width 5 meters and the area was 1000 m2. <br /> <br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Flow velocities, Width &amp; depth variation, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19709 2013-12-19T08:43:19Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Keskijoki.JPG<br /> |Picture description=The River Keskijoki.<br /> |Project summary=The River Keskijoki is 1 800 meters long and it flows though forest areas from the Lake Yli-Soppanajärvi to the Lake Soppanajärvi. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> The lenght of the first restored area is 545 meters and the width is 8 in average the area in total was 4 360 m2. The Second was 150 meters long, width 8 meters and the area in total was 1 200 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 200 meters, width 5 meters and the area was 1000 m2. <br /> <br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> |Average channel gradient category=0.01 - 0.1<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19708 2013-12-19T08:42:16Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Keskijoki.JPG<br /> |Picture description=The River Keskijoki.<br /> |Project summary=The River Keskijoki is 1 800 meters long and it flows though forest areas from the Lake Yli-Soppanajärvi to the Lake Soppanajärvi. The river bed is mainly sand and contains rocks and gravel. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored three sections in the river. The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state. Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> The lenght of the first restored area is 545 meters and the width is 8 in average the area in total was 4 360 m2. The Second was 150 meters long, width 8 meters and the area in total was 1 200 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 200 meters, width 5 meters and the area was 1000 m2. <br /> <br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19707 2013-12-19T08:34:45Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Keskijoki.JPG<br /> |Picture description=The River Keskijoki.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Keskijoki.JPG&diff=19706 2013-12-19T08:34:32Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Keskijoki&diff=19705 2013-12-19T08:32:44Z

<p>Kasvio: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=66.09047746678885, 27.30154037475586 }} {{Project overview |Project title=Restoration of the River Keskijoki...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09047746678885, 27.30154037475586<br /> }}<br /> {{Project overview<br /> |Project title=Restoration of the River Keskijoki<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19704 2013-12-19T08:30:23Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows though forest areas from the Lake Paasonjärvi to the Lake Y-Soppanajärvi. The catchment area is 97,92 km2.<br /> The river bed is mainly sand and contains rocks. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state.<br /> Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 300 meters, width 6 meters and the area was 1800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2.The elevations difference in the restored area was 1 meters. <br /> <br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paasonjoki before.JPG<br /> |Caption=The River Paasonjoki before the restoration (Photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19703 2013-12-19T08:29:46Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows though forest areas from the Lake Paasonjärvi to the Lake Y-Soppanajärvi. The catchment area is 97,92 km2.<br /> The river bed is mainly sand and contains rocks. A big part of the river is marked as nature conservation area. The water quality in the river is good or very good.<br /> <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. The aim of the retoration was to improve the living conditions of migratory fish and to make the river more nature-like and closer to its natural state.<br /> Trouts, grayling and macro invertebrates will benefit from the restoration and not only in the river but also in the nearby lakes. The rivers in the area are straightened for log floating since 1900 century. Also the natural state in the rivers are altered because of intense forestry and bog drainage.<br /> <br /> The restoration plan was accepted 4.3.2011 and the work started immediately. The plan was restore six rivers in the area. The area is highly appreciated among the fly fishers and its very popular recreational area.<br /> <br /> The restoration plan aimed to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish. Before the restoration many stones were taken away from from the river and places a side of the river. All the stones that were piled up next to the river were used in the restoration work.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 300 meters, width 6 meters and the area was 1800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2.The elevations difference in the restored area was 1 meters. <br /> <br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paasonjoki before.JPG<br /> |Caption=The River Paasonjoki before the restoration (Photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19702 2013-12-19T08:15:10Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows thourgh forest areas from the Lake Paasonjärvi to the Lake Y-Soppanajärvi. The river bed is mainly sand and contains rocks. <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. THe elevations difference in the restored area was 1 meters. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. <br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 300 meters, width 6 meters and the area was 1800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2.<br /> Before the restorationmany stones were taken away from from the river and places a side odf the river. All the stones that were piled up next to the river were used in the restoration work.<br /> The aim was to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Paasonjoki before.JPG<br /> |Caption=The River Paasonjoki before the restoration (Photo Huhtala)<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=File:Paasonjoki_before.JPG&diff=19701 2013-12-19T08:14:43Z

<p>Kasvio: </p> <hr /> <div></div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19700 2013-12-19T08:14:15Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows thourgh forest areas from the Lake Paasonjärvi to the Lake Y-Soppanajärvi. The river bed is mainly sand and contains rocks. <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. THe elevations difference in the restored area was 1 meters. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. <br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 300 meters, width 6 meters and the area was 1800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2.<br /> Before the restorationmany stones were taken away from from the river and places a side odf the river. All the stones that were piled up next to the river were used in the restoration work.<br /> The aim was to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations<br /> |Hydromorphological quality elements=Channel pattern/planform, Width &amp; depth variation, Flow velocities, <br /> |Biological quality elements=Fish, Invertebrates, <br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_the_River_Paasonjoki&diff=19699 2013-12-19T08:11:24Z

<p>Kasvio: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=66.09574709344108, 27.3759126663208<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Fisheries, Habitat and biodiversity, Hydromorphology<br /> |Country=Finland<br /> |Main contact forename=Jarmo<br /> |Main contact surname=Huhtala<br /> |Main contact id=Kasvio<br /> |Contact organisation=Centre for Economic Development, Transport and the Environment for Lapland<br /> |Multi-site=No<br /> |Project picture=Paasonjoki After.JPG<br /> |Picture description=The River Paasonjoki after the restoration (photo J. Huhtala)<br /> |Project summary=The River Paasonjoki is 4 930 meters long and it flows thourgh forest areas from the Lake Paasonjärvi to the Lake Y-Soppanajärvi. The river bed is mainly sand and contains rocks. <br /> The Centre for Economic Development, Transport and the Environment for Lapland restored four sections in the River. THe elevations difference in the restored area was 1 meters. <br /> The restoration was made to improve the living conditions of the fish and other species. Rocks and gravel was placed to the river to make rapid areas more suitable for the trouts to reproduce. <br /> <br /> The lenght of the first restored area is 430 meters and the width is 4,3 in average. The Second was 540 meters long, width 6 meters and the area in total was 3 240 m2. The restored rapid area in the totally was 1900 m2. The thirds section was 300 meters, width 6 meters and the area was 1800 m2. The last section was 570 meters long, width 8 meters and the total area reached up to 4 560 m2.<br /> Before the restorationmany stones were taken away from from the river and places a side odf the river. All the stones that were piled up next to the river were used in the restoration work.<br /> The aim was to slow down the current and produce suitable nesting habitats for the trouts and shelter places for the juveniles. Also versatility to the river bed was improved by digging few wider areas. Gravel was brought approximately 40 m3 and placed to the river in several places bed to ensure the nesting habitats for the migratory fish.<br /> <br /> Also in the section three, the culvert was altered so that the erosion that was in the channel would be protected from further erosion. Also in the section four the river was made more curvy to reduce the erosion in the channel and to protect the sand from accumulating to the river bed.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Heavily modified water body=No<br /> |Protected species present=Yes<br /> |Invasive species present=Yes<br /> |Species=Brown trout (Salmo trutta), Brook trout, grayling (Thymallus thymallus), <br /> |Average bankfull channel width category=5 - 10 m<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

Kasvio