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Location Sweden, Norrbotten
Central coordinates 22o 4.83' East  65o 37.90' North
IBA criteria B2, C2, C6
Area 440 ha
Altitude 2 - 5m
Year of IBA assessment 2000

Sveriges Ornitologiska Förening

Site description A shallow (1-4 m in depth) nutrient-rich lake at the head of the Gulf of Bothnia, formed when rising land isolated a bay from the sea. Fine marine sediments with overlying mud deposits cover the lake floor. Water exchange is minimal due to the low rate of inflow to the lake. Large sections of the shoreline are marshy, with Phragmites, Typha and Equisetum present; the lake itself supports floating vegetation. Mixed forests surround the lake.

Key Biodiversity The IBA is important for breeding waterbirds, waders and gulls.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Smew Mergellus albellus breeding  1996  10-30 breeding pairs  medium  B2, C2  Least Concern 
Wood Sandpiper Tringa glareola breeding  1996  20-40 breeding pairs  poor  C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Gammelstadsviken Nature Reserve 440 is identical to site 440  
Gammelstadsviken Wetlands of International Importance (Ramsar) 430 is identical to site 430  


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest; Mixed woodland  10%
Wetlands (inland) Fens, transition mires and springs; Rivers and streams; Standing freshwater; Water fringe vegetation  90%

Land use

Land-use Extent (% of site)
nature conservation and research 100%

Protection status National High International HighIBA overlaps with Nature Reserve (450 ha). 430 ha of IBA covered by Ramsar Site (Gammelstadsviken, 430 ha). IBA overlaps with Special Protection Area.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lake Gammelstadsviken. Downloaded from on 21/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife