S. V. Kotelnikova
Department of Hydrobiology and General ecology, Institute of fisheries, biology and nature management Astrakhan State Technical University, Astrakhan, Russia
Russian Federation

Ph.D in Biological Science, Assistant professor, Astrakhan State Technical University, Sub-Department of Hydrobiology and General Ecology, Astrakhan, Russia

A. V. Kotelnikov
Department of Hydrobiology and General ecology, Institute of fisheries, biology and nature management Astrakhan State Technical University, Astrakhan, Russia
Russian Federation

Doctor of Biological Science, Professor, Astrakhan State Technical University, Sub-Department of Hydrobiology and General Ecology, Phone: +7903349330716 Tatishchev st., Astrakhan, 414025 Russia

V. F. Zaitsev
Department of Hydrobiology and General ecology, Institute of fisheries, biology and nature management Astrakhan State Technical University, Astrakhan, Russia
Russian Federation

Doctor of Agricultural Science, Professor, Astrakhan State Technical University, Head of the Sub-Department of Hydrobiology and General Ecology, Phone: +79086172200, 16 Tatishchev st., Astrakhan, 414025 Russia