 The same inventory reported 45 species/taxa in the lake-bed fauna, which includes all common species, dominated by Trichoptera, Ephemeroptera, Odonata, freshwater gastropods, and leeches.perch, roach, northern pike, tench, silver bream, ruffe, and crucian carp have been documented in the lake, sample catches typically exceeding excepted levels.Zander was introduced in the late 1990s.