Marine mammals include three species of dolphin, all nationally rare, as well as several nationally rare and relic fish species. Human activities include commercial and recreational fishing, hunting, livestock grazing, irrigation, rice and grape cultivation. Bird-ringing and census programmes take place at the site. Ramsar site no. 114. A system of small, interconnected floodplain lakes set in the lower Danube basin.
Vegetation consists of emergent and submergent plant communities.
Numerous species of rare and protected species of plants occur. It provides important breeding and nursery areas for fish and amphibians. Human activities include conservation education, recreation, livestock grazing, haymaking, and an important fishery. Ancient burial sites are being excavated. Kryva Bay and Kryva Spit.