Crna Mlaka Fishponds

Ramsar logo

Crna Mlaka Fishponds

  • Country: 
  • Site number: 
  • Area: 
    756 ha
  • Designation date: 
  • Coordinates: 
    45°36'N 15°43'E
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.


Crna Mlaka (Crna Mlaka Fishponds). 18/01/93; Zagreb County; 756 ha; 45°36'40"N 015°44'09"E. Ornithological Reserve, National Ecological Network. An extensive carp fishponds area that represents an important breeding, feeding and staging/stopover site for a number of wetland species, especially birds. The site comprises the alluvial wetland along the lower part of the Kupa River and its tributaries and is surrounded by one of the largest complexes of alluvial oak forests in Europe. The fishponds with their water surface, extensive marsh vegetation, and rich food resources represent important site for migratory and breeding waterbirds such as the Ferruginous Duck Aythya nyroca together with other waterbirds, Crna Mlaka supports up to 15-20,000 birds during the fall migration. The Otter Lutra lutra and the Beaver Castor fiber also inhabit the fishponds. The site plays an important role in flood retention and control. Factors threatening the ecological character of the wetland include fish production activities and lack of effective water management. Within the site hunting is forbidden and forestry is restricted. Human activities in the ornithological reserve include fish production, recreational fishing and ecotourism. Ramsar Site no. 582. Most recent RIS information: 2012.

Administrative region: 
Zagreb County

  • National legal designation: 
    • ornithological reserve
    • site of National ecological network
  • Regional (international) legal designations: 
    • EU Natura 2000
  • Last publication date: 


Ramsar Information Sheet (RIS)

Archived RIS

Additional reports and documents