|Central coordinates||22o 6.28' East 65o 46.55' North|
|IBA criteria||B1i, C2, C3, C6|
|Altitude||2 - 25m|
|Year of IBA assessment||2000|
Site description A lake, c.15 km long, which was isolated from the Gulf of Bothnia by land elevation. The shallow waters have favoured the spread of Scirpus and Phragmites, which almost divide the lake in two at one point. Floating vegetation is also extensive and parts of the south-western end of the lake have been invaded by Salix scrub.
Key Biodiversity The area is important as a resting area for migrating geese, ducks, raptors and waders. 210 species of bird have been recorded.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Hazel Grouse Bonasa bonasia||resident||1996||10-30 breeding pairs||poor||C6||Least Concern|
|Bean Goose Anser fabalis||passage||1996||300-800 individuals||good||B1i, C3||Least Concern|
|Whooper Swan Cygnus cygnus||passage||1996||100-200 individuals||medium||C2||Least Concern|
|Osprey Pandion haliaetus||breeding||1996||3-10 breeding pairs||medium||C6||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Persöfjärden||Wetlands of International Importance (Ramsar)||3,320||protected area contained by site||3,320|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Wetlands (inland)||Fens, transition mires and springs; Standing freshwater; Water fringe vegetation||50%|
|Artificial - terrestrial||Arable land; Highly improved re-seeded landscapes; Ruderal land||30%|
|Land-use||Extent (% of site)|
Protection status National None International High3,320 ha of IBA covered by Ramsar Site (Persöfjärden, 3,320 ha).
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lake Persöfjärden. Downloaded from http://www.birdlife.org on 29/08/2016
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