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Location Sweden, Västra Götaland
Central coordinates 11o 36.99' East  58o 4.88' North
IBA criteria B1i, B2, B3, C2, C3, C6
Area 6,900 ha
Altitude 0 - 74m
Year of IBA assessment 2000

Sveriges Ornitologiska Förening

Site description A fjord between two large islands situated off the west Swedish coast, with extensive shallow waters and a Zostera-covered clay sea-floor. The islands have well-managed coastal meadows with a saltmarsh character and some forest, mostly deciduous and dominated by Quercus. Human activities include boating, swimming, fishing, and grazing for conservation purposes.

Key Biodiversity The IBA is also important for passage waterbirds and waders. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (4-10 wintering birds).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Whooper Swan Cygnus cygnus winter  1997  400-500 individuals  medium  B1i, B3, C2  Least Concern 
Common Goldeneye Bucephala clangula non-breeding  1997  2,000-4,000 individuals  medium  B1i, C3  Least Concern 
Eurasian Eagle-owl Bubo bubo resident  1997  2-4 breeding pairs  good  B2, C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Kälkerön Nature Reserve 352 protected area contained by site 350  
Råssö Nature Reserve 485 protected area contained by site 469  
Stigfjorden Wetlands of International Importance (Ramsar) 6,940 is identical to site 6,900  
Stigfjorden fjord Nature Reserve 8,539 protected area overlaps with site 5,000  
Svanvik Nature Reserve 297 protected area contained by site 300  
Valön Nature Reserve 265 protected area contained by site 265  


IUCN habitat Habitat detail Extent (% of site)
Grassland Mesophile grasslands  10%
Sea Sea inlets and coastal features  90%

Land use

Land-use Extent (% of site)
tourism/recreation -
nature conservation and research -
agriculture 10%
water management 75%
not utilised 15%

Protection status National Partial International PartialIBA overlaps with five Nature Reserves (totalling 8,539 ha). 5,180 ha of IBA covered by Ramsar Site (Stigfjorden, 5,180 ha). IBA overlaps with Special Protection Area (1,470 ha).

Related state of the world's birds case studies

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Stigfjorden fjord. Downloaded from on 27/10/2016

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