The elementary composition of some species of fish of the family Gobidae as forage organisms of the Caspian seal (Phoca caspica, Gmelin, 1788)
https://doi.org/10.36038/0131-6184-2024-6-45-53
Abstract
In the northern part of the Caspian Sea, bullhead species belong to numerous fish populations and are food items for the Caspian seal, the only mammal of the Caspian Sea. Consideration of the trace element composition of the main components of the Caspian seal’s diet will allow for a better assessment of the migration of trace elements in trophic chains and their accumulation in the mammalian body. In addition, according to S.A. Gutsulyak and L.M. Vasilyeva [6] in the conditions of active development of oil and gas fields, bychkovye, which do not make long-term migrations, can act as a bioindicator characterizing the environmental situation in the proposed oil production areas. The aim of the work is to identify the specific features of the accumulation of heavy metals in fish of the Gobiidae family as forage organisms of the Caspian seal. The excess of permissible residual concentrations of Mn, Co, Pb and Cd was revealed in the objects of the study. It was noted that Benthophilus macrocephalus, in comparison with other representatives of the Gobiidae family, was the accumulator of most chemical elements (Mn, Pb and Cd), and Neogobius melanostomus was Cu and Cr. The studied species of forage organisms are able to influence the degree of accumulation of heavy metals by the body of the Caspian seal.
Keywords
heavy metals,
accumulation,
pugolovka,
sand goby,
round goby,
Khvalynsky goby,
Caspian seal,
Caspian Sea
About the Authors
Yu. A. Chaplygina
VNIRO Federal State Budgetary Educational Institution
Russian Federation
Russian Federation
Yulia A. Chaplygina – Postgraduate student
105187, Moscow, Okruzhnoy proezd, 19
V. A. Chaplygin
Astrakhan State Technical University
Russian Federation
Russian Federation
Vladimir A. Chaplygin – Candidate of Biological Sciences, Associate Professor of the Department of Hydrobiology and General Ecology
414056, Astrakhan, Tatishcheva 16
T. S. Ershova T.S.
Astrakhan State Technical University
Russian Federation
Russian Federation
Tatyana S. Ershova – Doctor of Biological Sciences, Associate Professor, Associate Professor of the Department of Hydrobiology and General Ecology
414056, Astrakhan, Tatishcheva 16
V. F. Zaitsev
Astrakhan State Technical University
Russian Federation
Russian Federation
Vyacheslav F. Zaitsev – Doctor of Agricultural Sciences, Professor, Head of the Department of Hydrobiology and General Ecology
414056, Astrakhan, Tatishcheva 16
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Review
For citations:
Chaplygina Yu.A., Chaplygin V.A., Ershova T.S. T.S., Zaitsev V.F. The elementary composition of some species of fish of the family Gobidae as forage organisms of the Caspian seal (Phoca caspica, Gmelin, 1788). Fisheries. 2024;(6):45-53. (In Russ.) https://doi.org/10.36038/0131-6184-2024-6-45-53
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