Case study:Restoration of Porvoonjoki - Revision history

Alexrrc at 16:48, 2 January 2019

2019-01-02T16:48:16Z

← Older revision		Revision as of 16:48, 2 January 2019
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=Barrier removal, Creation of gravel banks~~, Construction of meanders~~, Creation of fish passes,		\|Bank and bed modifications measure=Barrier removal, Creation of gravel banks, Creation of fish passes,
	\|Floodplain / River corridor=Barrier removal		\|Floodplain / River corridor=Barrier removal
			\|Planform / Channel pattern=Creation of meanders,
	}}		}}
	{{Hydromorphological_quality_elements_header}}		{{Hydromorphological_quality_elements_header}}

Alexrrc at 15:50, 2 January 2019

2019-01-02T15:50:36Z

← Older revision		Revision as of 15:50, 2 January 2019
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=Barrier removal, ~~Construction~~ of gravel banks, Construction of meanders, Creation of fish passes,		\|Bank and bed modifications measure=Barrier removal, Creation of gravel banks, Construction of meanders, Creation of fish passes,
	\|Floodplain / River corridor=Barrier removal		\|Floodplain / River corridor=Barrier removal
	}}		}}

Alexrrc at 08:36, 2 June 2017

2017-06-02T08:36:34Z

← Older revision		Revision as of 08:36, 2 June 2017
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=Barrier removal~~, Building fishways~~, Construction of gravel banks, Construction of meanders,		\|Bank and bed modifications measure=Barrier removal, Construction of gravel banks, Construction of meanders, Creation of fish passes,
	\|Floodplain / River corridor=Barrier removal		\|Floodplain / River corridor=Barrier removal
	}}		}}

Alexrrc at 08:13, 2 June 2017

2017-06-02T08:13:46Z

← Older revision		Revision as of 08:13, 2 June 2017
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=Barrier removal, Building ~~fishway~~, Construction of gravel banks, Construction of meanders,		\|Bank and bed modifications measure=Barrier removal, Building fishways, Construction of gravel banks, Construction of meanders,
	\|Floodplain / River corridor=Barrier removal		\|Floodplain / River corridor=Barrier removal
	}}		}}

Alexrrc at 09:58, 31 May 2017

2017-05-31T09:58:12Z

← Older revision		Revision as of 09:58, 31 May 2017
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=~~Barriers~~ removal, Building fishway, Construction of gravel banks, Construction of meanders,		\|Bank and bed modifications measure=Barrier removal, Building fishway, Construction of gravel banks, Construction of meanders,
	\|Floodplain / River corridor=~~Removal of barriers,~~		\|Floodplain / River corridor=Barrier removal
	}}		}}
	{{Hydromorphological_quality_elements_header}}		{{Hydromorphological_quality_elements_header}}

Kasvio at 13:33, 6 December 2013

2013-12-06T13:33:30Z

← Older revision		Revision as of 13:33, 6 December 2013
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	{{~~Case_study_status~~		{{Case study status
	\|Approval status=		\|Approval status=Approved




	~~Draft~~
	}}		}}
	{{Location		{{Location

Kasvio at 13:33, 6 December 2013

2013-12-06T13:33:15Z

← Older revision		Revision as of 13:33, 6 December 2013
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	\|File name=Porvoo koskela after.JPG		\|File name=Porvoo koskela after.JPG
	\|Caption=The Koskela rapids after the restoratrion (photo: Vainio)		\|Caption=The Koskela rapids after the restoratrion (photo: Vainio)
			}}
			{{Case study image
			\|File name=Porvoo4.JPG
			\|Caption=The River Porvoonjoki in the City of Porvoo
	}}		}}
	{{Image_gallery_end}}		{{Image_gallery_end}}

Kasvio at 13:32, 6 December 2013

2013-12-06T13:32:13Z

← Older revision		Revision as of 13:32, 6 December 2013
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	There are several small hydropower stations along the River Porvoonjoki and its streams. Also there has been many old saws and mills but many of them have been opened up and now the fish can migrate upwards.		There are several small hydropower stations along the River Porvoonjoki and its streams. Also there has been many old saws and mills but many of them have been opened up and now the fish can migrate upwards.
	~~\|Monitoring surveys and results=More than 18 restorations in the tributaries of the river Porvoonjoki have been established.~~		\|Lessons learn=Thanks to the local volunteers the restorations have been very succesfull and now the salmonid fish and many other fish species have better conditions to live and reproduce in the river. Still there are many barriers to the migratory fish and those issues need to be taking into consideratin in the future.
	\|Lessons learn=Thanks to the local volunteers the restorations have been very ~~succesfulk~~ and now the salmonid fish and many other fish species have better conditions to live and reproduce in the river. Still there are many barriers to the migratory fish and those issues need to be taking into consideratin in the future.
	}}		}}
	{{Image gallery}}		{{Image gallery}}

Kasvio at 13:31, 6 December 2013

2013-12-06T13:31:33Z

← Older revision		Revision as of 13:31, 6 December 2013
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	\|Project picture=Porvoo3.JPG		\|Project picture=Porvoo3.JPG
	\|Picture description=The River Porvoonjoki		\|Picture description=The River Porvoonjoki
	\|Project summary=The river Porvoonjoki is the main river of the catchment area of the Porvoonjoki. The river runs from Lahti region to the City of Porvoo. It passes by many agricultural fields that are highly culturally significant to the area. The river is 143 km long anf the catchment area is 1 271 km2. The catchment area has only 1,4 % of lakes. The delta of the Porvoonjoki river is a Natura2000 area. The current has been more than 200 m3/s. The river has several rapid areas and 18 rapids have been restored to help the fish to migrate upwards the river. May restoration were in the ~~side channels~~ of the main river. Also fish (roe boxes and juveniles) have been introduced to the rapid areas. The fish populations have not risen as hoped due to the fishing and the obstacles to migrate.		\|Project summary=The river Porvoonjoki is the main river of the catchment area of the Porvoonjoki. The river runs from Lahti region to the City of Porvoo. It passes by many agricultural fields that are highly culturally significant to the area. The river is 143 km long anf the catchment area is 1 271 km2. The catchment area has only 1,4 % of lakes. The delta of the Porvoonjoki river is a Natura2000 area. The current has been more than 200 m3/s. The river has several rapid areas and 18 rapids have been restored to help the fish to migrate upwards the river. May restoration were done in the triburatory of the main river. Also fish (roe boxes and juveniles) have been introduced to the rapid areas. The fish populations have not risen as hoped due to the fishing and the obstacles to migrate.

	Most of restoration actions are done by the local volunteers. In most of the restoration cases the rapids have received gravel, stones and also the paths for migratory fish have been opened. The stones will modify the current in the streams and give shelter areas for the fish. The gravel gives the salmonid fish places to reproduce and lay eggs.		Most of restoration actions are done by the local volunteers. In most of the restoration cases the rapids have received gravel, stones and also the paths for migratory fish have been opened. The stones will modify the current in the streams and give shelter areas for the fish. The gravel gives the salmonid fish places to reproduce and lay eggs.
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	There are several small hydropower stations along the River Porvoonjoki and its streams. Also there has been many old saws and mills but many of them have been opened up and now the fish can migrate upwards.		There are several small hydropower stations along the River Porvoonjoki and its streams. Also there has been many old saws and mills but many of them have been opened up and now the fish can migrate upwards.
	\|Monitoring surveys and results=More than 18 restorations ~~int~~ the ~~tributary~~ of the river Porvoonjoki have been established.		\|Monitoring surveys and results=More than 18 restorations in the tributaries of the river Porvoonjoki have been established.
	\|Lessons learn=Thanks to the local volunteers the restorations have been very succesfulk and now the salmonid fish and many other fish species have better conditions to live and reproduce in the river. Still there are many barriers to the migratory fish and those issues need to be taking into consideratin in the future.		\|Lessons learn=Thanks to the local volunteers the restorations have been very succesfulk and now the salmonid fish and many other fish species have better conditions to live and reproduce in the river. Still there are many barriers to the migratory fish and those issues need to be taking into consideratin in the future.
	}}		}}

Kasvio at 13:11, 6 December 2013

2013-12-06T13:11:51Z

@@ Line 143: / Line 143: @@
 }}
 {{Measures
-|Bank and bed modifications measure=
+|Bank and bed modifications measure=Barriers removal, Building fishway, Construction of gravel banks, Construction of meanders,
+|Floodplain / River corridor=Removal of barriers,
 }}
 {{Hydromorphological_quality_elements_header}}