Liepāja lake is a shallow entropic coastal lake with extensive areas of emergent vegetation, surrounded by seasonally flooded meadows and arable land. Polders and dams enclose most of the wetland area. In the lake are found 14 species of fish - pike, roach, perch, bream, crucian carp, tench, eel, vimba, burbot, carp, zander, smelt, bitterling and rudd. In May only licenced fishing is allowed. Price of licence - 10 LVL (about $20). From 1977 till 1999 the lake was an ornithological preserve with 2 species of birds - swans and ducks. Since 2004 the lake is included to European Union protected territories list - Natura 2000. In 2008 the nature protection plan of Liepāja lake was developed by Grontmij Carl Bro company.