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Location Netherlands, Flevoland,Overijssel
Central coordinates 5o 58.00' East  52o 38.00' North
IBA criteria A4iii, B1i, C2, C4, C6
Area 2,180 ha
Year of IBA assessment 2000

Vogelbescherming Nederland

Site description A freshwater lake with extensive reedbeds, bounded in the north by the dyke of Noordoostpolder (reclaimed in 1942) and in the south by the mainland (province of Overijssel). The Zwarte Water river (090) flows into the lake in the north-east corner, and the site is adjacent to Lake Ketelmeer (039) in the west (Ramspol). The north-eastern border is close to De Wieden (065). There is a shipping lane (dredged). This site, together with site 047, formed part of a single, larger site (former site NL028) in the previous pan-European IBA inventory (Grimmett and Jones 1989).

Key Biodiversity This is an important roost for geese Anser from surrounding feeding areas, but counts underestimate numbers. The average seasonal peak number of waterbirds during 1992-1996 exceeded 20,000.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Eurasian Spoonbill Platalea leucorodia passage  1987-1991  44 individuals  good  B1i, C2  Least Concern 
Purple Heron Ardea purpurea breeding  1987-1991  24 breeding pairs  good  C6  Least Concern 
A4iii Species group - waterbirds unknown  20,000 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Zwarte Meer Wetlands of International Importance (Ramsar) 2,050 protected area contained by site 2,050  
Zwarte Meer II Natural Monument 206 protected area contained by site 206  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater; Water fringe vegetation  96%

Land use

Land-use Extent (% of site)
fisheries/aquaculture 86%
water management 100%
nature conservation and research 81%
tourism/recreation 86%
urban/industrial/transport 30%

Protection status National Partial International High1,650 ha of IBA covered by Natural Monument (Zwarte Meer, 1,650 ha). 206 ha of IBA covered by Natural Monument (Zwarte Meer II, 206 ha). 2,050 ha of IBA covered by Special Protection Area (Zwarte Meer, 2,050 ha). 2,050 ha of IBA covered by Ramsar Site (Zwarte Meer, 2,050 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lake Zwartemeer. Downloaded from on 26/10/2016

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