Taxa;"Number of observations";"Number of speciments" Cephalaspidomorphi Petromyzontiformes Petromyzontidae "Eudontomyzon mariae (Berg, 1931)";18;23 Actinopterygii Acipenseriformes Acipenseridae "Acipenser ruthenus Linnaeus, 1758 ";12;32 Cypriniformes Acheilognathidae "Rhodeus amarus (Bloch, 1782)";248;47860 Cobitidae "Cobitis melanoleuca Nichols, 1925";95;531 "Cobitis sp.";11;92 "Cobitis taenia Linnaeus, 1758";205;1262 "Cobitis tanaitica Băcescu & Mayer, 1969";2;3 "Misgurnus fossilis (Linnaeus, 1758)";37;232 "Sabanejewia aurata (De Filippi, 1863)";3;17 "Sabanejewia baltica Witkowski, 1994";22;216 Cyprinidae "Carassius carassius (Linnaeus, 1758)";57;917 "Carassius gibelio (Bloch, 1782)";202;4771 "Cyprinus carpio Linnaeus, 1758";36;2628 Gobionidae "Gobio brevicirris Fowler, 1976";102;7804 "Gobio volgensis Vasil’eva, Mendel, Vasil’ev, Lusk & Lusková, 2008";307;10066 "Pseudorasbora parva (Temminck & Schlegel 1846)";13;193 "Romanogobio albipinnatus (Lukasch, 1933)";102;8904 Leuciscidae "Abramis ballerus (Linnaeus, 1758)";23;2372 "Abramis brama (Linnaeus, 1758)";164;19154 "Alburnoides rossicus Berg, 1924";94;3035 "Alburnus alburnus (Linnaeus, 1758)";446;50049 "Alburnus chalcoides (Güldenstädt 1772)";1;1 "Ballerus sapa (Pallas, 1814)";27;129 "Blicca bjoerkna (Linnaeus, 1758)";193;21905 "Chondrostoma variabile Yakovlev, 1870";48;2581 "Leucaspius delineatus (Heckel, 1843)";296;29988 "Leuciscus aspius (Linnaeus, 1758)";84;522 "Leuciscus danilewskii (Kessler 1877)";20;494 "Leuciscus idus (Linnaeus, 1758) ";175;1348 "Leuciscus leuciscus (Linnaeus, 1758)";331;20571 "Leuciscus sp.";5;214 "Pelecus cultratus (Linnaeus, 1758)";12;79 "Phoxinus phoxinus (Linnaeus, 1758)";82;21391 "Rhynchocypris percnurus (Pallas, 1814)";39;3744 "Rutilus frisii (Nordmann, 1840)";6;1225 "Rutilus rutilus (Linnaeus, 1758)";580;69016 "Scardinius erythrophthalmus (Linnaeus, 1758)";158;7194 "Squalius cephalus (Linnaeus, 1758)";315;10655 "Vimba vimba (Linnaeus 1758)";34;1334 Nemacheilidae "Barbatula barbatula (Linnaeus, 1758)";298;3494 Tincidae "Tinca tinca (Linnaeus, 1758)";48;202 Esociformes Esocidae "Esox lucius Linnaeus 1758";424;4486 Gadiformes Lotidae "Lota lota (Linnaeus, 1758)";78;183 Perciformes Gobiidae "Benthophilus stellatus (Sauvage 1874)";2;15 "Neogobius fluviatilis (Pallas, 1814)";48;862 "Neogobius melanostomus (Pallas, 1814)";7;110 "Proterorhinus marmoratus (Pallas 1814)";36;826 Odontobutidae "Perccottus glenii Dybowski, 1877";175;8683 Percidae "Gymnocephalus acerina (Gmelin, 1789)";4;336 "Gymnocephalus cernua (Linnaeus, 1758)";171;5685 "Perca fluviatilis Linnaeus, 1758";449;16634 "Sander lucioperca (Linnaeus, 1758)";29;217 "Sander volgensis (Gmelin, 1789)";1;1 Salmoniformes Salmonidae "Salmo trutta Linnaeus, 1758";1;1 Scorpaeniformes  Cottidae "Cottus koshewnikowi Gratzianov, 1907";6;24 Siluriformes  Siluridae "Silurus glanis Linnaeus, 1758";18;30