Lake Oudegaasterbrekken

IBA Justification

The site was identified as important in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Pink-footed Goose Anser brachyrhynchus LC winter 1979-1989 15,000 individuals A4i, B1i, C3

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2000).

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Oudegaasterbrekken; Fluessen en omgeving Site of Community Importance (Habitats Directive) 3,054 protected area overlaps with site 771
Oudegaasterbrekken; Fluessen en omgeving Special Protection Area (Birds Directive) 2,880 protected area overlaps with site 770
Oudegaasterbrekken, Fluessen en omgeving Natuurbeschermingswet 3,054 protected area overlaps with site 0
Oudegaasterbrekken, Fluessen en omgeving Ramsar Site, Wetland of International Importance 850 protected area overlaps with site 850
Grons, Sanmar, Gaastmar Nature Reserve 83 protected area overlaps with site 16
Blauhuester Puollen Nature Reserve 167 protected area contained by site 167


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater -
Artificial/Terrestrial Highly improved re-seeded landscapes -
Unknown -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
water management -
hunting -
nature conservation and research -
tourism/recreation -
agriculture -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Lake Oudegaasterbrekken. Downloaded from on 30/11/2023.