Zinc and copper accumulation in zander scales in the Novosibirsk reservoir
https://doi.org/10.31677/2072-6724-2020-57-4-138-143
Abstract
One of the most important environmental issues is the pollution of water basins with chemicals, in particular with heavy metals, which do not dissolve in water, and pass through the food chain into the body of aquatic organisms, and then the final consumer, humans. The features of the content of copper and zinc, their variability in the scales of pike perch (Sander lucioperca) of the Novosibirsk reservoir were studied. 33 samples of scales were taken for analysis. The concentration of the studied metals was measured applying the atomic emission spectral method with inductively coupled plasma on an iCAP-6500 spectrometer from Thermo Scientific. A high phenotypic variability in the concentration of copper and zinc in pike perch scales was found. It was revealed that the concentration of copper in the scales of the pike perch of the Novosibirsk reservoir is 1.8 times lower than in the muscles, and the content of zinc is 4.8 times higher. The extreme ratio for copper was 1:24, for zinc 1:6. The content of zinc and copper was in a ratio of 48:1. The average population values of the concentration level of copper (1.69 mg / kg) and zinc (93.3 mg / kg) in the scales of the pike perch of the Novosibirsk reservoir were established. A high level of positive correlation (r = 0.859) was revealed between essential elements. The obtained data on the level of copper and zinc concentration in scales can be used as reference values. The distribution of heavy metals in zander scales is uneven. Expansion of parameters for assessing living organisms by chemical composition enables to assess more accurately the interior of animals. The data obtained can be used for intravital assessment of the interior of zander and in environmental studies. There is a tendency towards an increase in the level of heavy metals in the water body of the Novosibirsk Reservoir.
About the Authors
K. S. RiavkinaRussian Federation
PhD student
Novosibirsk
O. S. Korotkevich
Russian Federation
Doctor of Biological Sc., Professor
Novosibirsk
V. L. Petukhov
Russian Federation
Doctor of Biological Sc., Professor
Novosibirsk
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Review
For citations:
Riavkina K.S., Korotkevich O.S., Petukhov V.L. Zinc and copper accumulation in zander scales in the Novosibirsk reservoir. Bulletin of NSAU (Novosibirsk State Agrarian University). 2020;(4):138-143. (In Russ.) https://doi.org/10.31677/2072-6724-2020-57-4-138-143