Bay of Torslanda (903)
Sweden, Europe
Site overview
KBA status: confirmed
Year of last assessment: 2007
National site name: Torslandaviken
Central coordinates: Latitude: 57.7042, Longitude: 11.7992
System: terrestrial, marine
Elevation (m): 0 to 10
Area of KBA (km2): 2.69603
Protected area coverage (%): 49.91
KBA classification: Regional
Legacy site: Yes
Site details
Site description: The Bay of Torslandaviken forms one of two branches of the mouth of one of Sweden's largest rivers.</P>
Rationale for qualifying as KBA: This is one of the most important sites on the west coast for wintering and passage waterbirds and shorebirds, due to an abundance of food caused by nutrient input from a water-purification plant at the river mouth. A total of 203 species of bird have been recorded in the Bay.</P>
Manageability of the site: Site identified based on BirdLife International's Important Bird and Biodiversity Areas, under which manageability is strongly recommended but not explicitly documented
Habitats
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Shrubland | 5 | |
| Grassland | 4 | |
| Artificial - Terrestrial | 21 | |
| Marine Neritic | 30 |
Threats
Summary of threats to biodiversity at KBA: Part of the site is embanked and is being filled with mud from the adjacent harbour. The continuation of this work will probably eliminate most of the remaining valuable wetland habitats. Additional threats include drainage of adjacent wetlands, the construction of wind-power plants, controlled tipping, and pollution by industrial surface water. Concerned locals have established the Society of Torsviken Nature Reserve with the aim of protecting valuable wetland habitats.</P>
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Pollution | Industrial & military effluents | Type Unknown/Unrecorded | Ongoing |
| Human intrusions & disturbance | Work & other activities | Ongoing | |
| Energy production & mining | Renewable energy | Ongoing | |
| Natural system modifications | Other ecosystem modifications | Ongoing |
Additional information
Contributors: Site identified based on Important Bird and Biodiversity Areas by the BirdLife International Partnership