The reserve, established in 1984, has an area of over 268 ha. It is an area very diverse in terms of the structure of the habitats. Its basic value is the occurrence of about 100 species of waterfowl, reed and meadow birds (both migratory and breeding). The most numerous species is the black-headed gull, followed by colonies of ducks: tufted duck, common pochard and mallard. Also noteworthy are the swan, grebe, garganey and heron. There are also sea ducks, velvet scoter, common scoter and predators: marsh harrier, buzzard, black kite. Mammals are quite numerous, including: moose, otter, badger, fox and muskrat. The flora of the reserve is very diverse. The largest area is occupied by the reed grass community and reed bed. The dominant forest communities are: redcurrant alder forest, ash-alder riparian forest, continental mixed coniferous forest, and oak-hornbeam forest and willow thickets.