Sites - Important Bird and Biodiversity Areas (IBAs)
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Skagerrak-Southwest Norwegian trench
9o 0.00' East 57o 40.00' North
A4i, A4ii, A4iii, B1i, B1ii, C3, C4
Year of IBA assessment
Dansk Ornitologisk Forening
Site description A sea area with complex salinity gradients. 33% of the area is within Danish territory (the area given here), 61% in Norwegian territory and 7% in Swedish. Coordinates are approximate.
Key Biodiversity Of very high importance for pelagic species such as Sula bassana, Stercorarius skua (nearly 12% of the biogeographic population), Uria aalge, Alca torda and Alle alle (25% of the biogeographic population). Outside of the IBA, in the adjacent area of Jammerbugten, Melanitta nigra occurs in high numbers (up to 50,000) in some years.