Comparative analysis of the mass Gobiidae species nutrition spectrum from the Bilosarayska Bay of the Azov Sea

The Azov Sea is one of the most strategically important and unique water bodies of Ukraine by its resource potential. According to the statistics, about 34179±4677 tons of fish resources are withdrawn during the active fishing period per year (Demchenko, 2012). Round goby (Neogobius melanostomus (Pallas, 1814) is the most mass species in the commercial fishing. But there are other gobies species, such as syrman goby (Neogobius syrman (Nordmann, 1840), monkey goby (Neogobius fluviatilis (Pallas, 1814) and ginger goby (Neogobius eurycephalus (Kessler, 1874) that are often found in catches – 77 %, 69 % and 23 % respectively (Tkachenko, 2017)