Case study:Regional Actions to Improve Nature in River Odense and Odense Fjord (REGAIN)
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- 1 Project overview
- 2 Image gallery
- 3 Catchment and subcatchment
- 4 Site
- 5 Project background
- 6 Reasons for river restoration
- 7 Measures
- 8 Monitoring
- 9 Additional documents and videos
- 10 Additional links and references
- 11 Supplementary Information
|Project web site|
|Themes||Habitat and biodiversity|
|Main contact forename||Annette Strøm|
|Main contact surname||Jacobsen|
|Main contact user ID|
|Contact organisation||The Nature Agency, Danish Ministry of the Environment.|
|Contact organisation web site||http://www.naturstyrelsen.dk/|
|Parent multi-site project|
| This is a parent project
encompassing the following
The River Odense is designated as pSCI and Odense Fjord as pSCI and SPA for its ecological value and importance in sustaining bird and freshwater species. "Unio crassus" is a species of freshwater mussel with declining populations all across Europe, which is only found in the River Odense in Denmark.
The river-fjord ecosystem, with its habitat types and bird species, is vulnerable to deterioration due to poor physical variation in River Odense, heavy nutrient loads into the Odense Fjord and degradation of the wetlands. In 2004 the project “Regional Actions for Improvement of Nature in River Odense and Odense Fjord” (REGAIN) was approved by the EU as a LIFE Nature project, for which financing was secured from a combination of grants from the state and the county.
The REGAIN project aimed to enhance the conservation status of the shallow inlet Odense Fjord and to improve the ecological conditions in River Odense, including the sea meadows along the shores of Odense Fjord and of various fresh water wetlands on River Odense riparian areas. This is to meet good conservation status under the Habitats Directive for the species included in Annex II: "Unio crassus", "Vertiego moulinsiana", "Lampetra planeri" and "Cobitis taenia".
In order to address the main issues in the area towards an improved ecological and conservation status, the project measures were to obtain more natural hydrological conditions and more varied physical conditions, to decrease the availability of nutrients, to decrease the biotope area and to apply good management practices in the restored areas.
Monitoring surveys and results
Monitoring of fish, bed fauna, physical conditions of the watercourse and birds has been conducted before the project start to ensure there is background registrations available to compare with the monitoring after the project start that will take place in 2014. Nitrogen levels and habitat types are also to be monitored
Expected results: (1) New wetlands of 350 hectares, (2) reduction of nitrogen load to Odense Fjord of approx. 60 tonnes of nitrogen a year, a (3) re-meandered watercourse stretch of approx. 10 km of the Tiver Odense, (4) grazing agreements for 156 hectares along the river, (5) grazing agreements for approx. 51 hectares along the fjord, (6) management plans for coastal meadows along the fjord and management plans for areas along the river, (7) improvements in relation to favourable conservation status for Habitat species and Habitat nature types, (8) information boards, (9) observation tower for the public.
- Good management practices - Exchange of experience between Denmark and Germany about the Thick-shelled river mussel
Catchment and subcatchment
Cost for project phases
Reasons for river restoration
Hydromorphological quality elements
Biological quality elements
Physico-chemical quality elements
Additional documents and videos