Case study:Rehabilitation of the river Segeråga: Difference between revisions
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|Contact organisation url=www.rodoy.kommune.no/ | |Contact organisation url=www.rodoy.kommune.no/ | ||
|Multi-site=No | |Multi-site=No | ||
|Project summary=Segeråga is located in Rødøy and Meløy municipality in the northern part of Norway. The river has been exposed to significant man-made changes during the last 30 years. New cultivation problems in the upper part of the river, with drainage and ditching of large peatlands, have had a documentable and significant negative ecological consequence for the river. The river has had increased sludge of fine particulate inorganic material (sludge/fine sand). The fish stock have probably been significantly reduces because of this. | |||
Two reports describes the aquatic ecological status of segeråga, through benthic and juvenile fish surveys in the watercourse, supplemented with some water chemistry. Based on this knowledge, as well as field inspections and problemmapping, a rehabilitationplan was made. The rehabilitationplan suggests rehabilitation measures to re-establish the river as a river with sea-migrating salmonids, with particular emphasis on recovering the sea trout stock. This project was also a pilot project for this type of smaller rivers with man-made changes and new cultivation problems. | |||
The rehabilitation of the river has been done according to the rehabilitationplan and includes measures as removing the inorganic material (sludge/fine sand), digging out ponds, gravel for spawning grounds, fish ladder, reinforcement of riverbank and sediment ponds. | |||
|Project title=Rehabilitation of the river Segeråga | |Project title=Rehabilitation of the river Segeråga | ||
}} | }} | ||
Revision as of 10:13, 30 October 2020
This case study is pending approval by a RiverWiki administrator.
Location: 66° 43' 0.13" N, 13° 16' 28.41" E
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Project overview
| Status | In progress |
|---|---|
| Project web site | |
| Themes | Fisheries, Habitat and biodiversity, Land use management - agriculture, Monitoring, Water quality |
| Country | Norway |
| Main contact forename | Kjetil |
| Main contact surname | Hansen |
| Main contact user ID | |
| Contact organisation | Municipality of Rødøy |
| Contact organisation web site | http://www.rodoy.kommune.no/ |
| Partner organisations | |
| Parent multi-site project | |
| This is a parent project encompassing the following projects |
No |
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Project summary
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Segeråga is located in Rødøy and Meløy municipality in the northern part of Norway. The river has been exposed to significant man-made changes during the last 30 years. New cultivation problems in the upper part of the river, with drainage and ditching of large peatlands, have had a documentable and significant negative ecological consequence for the river. The river has had increased sludge of fine particulate inorganic material (sludge/fine sand). The fish stock have probably been significantly reduces because of this.
Two reports describes the aquatic ecological status of segeråga, through benthic and juvenile fish surveys in the watercourse, supplemented with some water chemistry. Based on this knowledge, as well as field inspections and problemmapping, a rehabilitationplan was made. The rehabilitationplan suggests rehabilitation measures to re-establish the river as a river with sea-migrating salmonids, with particular emphasis on recovering the sea trout stock. This project was also a pilot project for this type of smaller rivers with man-made changes and new cultivation problems.
The rehabilitation of the river has been done according to the rehabilitationplan and includes measures as removing the inorganic material (sludge/fine sand), digging out ponds, gravel for spawning grounds, fish ladder, reinforcement of riverbank and sediment ponds.
Monitoring surveys and results
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Lessons learnt
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