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Influence of mercury accumulation on fish

Journal Article · · J. Ichthyol. (Engl. Transl.); (United States)
OSTI ID:5193447
; ; ;

Questions of the accumulation and distribution of mercury in the organs and tissues of different species of fish were examined in relation to the influence of mercury on survival, physiological and biochemical indices of the blood and brain. In the sturgeon and the roach, mercury accumulated primarily in the kidneys, liver, spleen and gills. The uneven distribution is evidently due to differentiation and differences in the degree of intensity of the metabolic processes of the cells in the organs and tissues, and the physico-chemical mechanism of the interaction of mercury with the biological structure is also important. There are substantial changes in the composition of the blood as a result of intoxication. In the sturgeon and roach a drop is noted in erythrocytes, hemoglobin and leukocytes and qualitative changes in the red blood cells also occur. Deviations were also noted in the correlation of individual forms of leukocytes. These changes are evidently provoked both by the direct presence of mercury in the blood stream and by its disruption of the functions of the hematopoetic organs. Mercury poisoning leads to disruption of the nitrogen metabolism of the brain of the fish. With the accumulation of mercury in fish to a certain critical level, the metabolic processes are inhibited or altered and the defense functions of the blood are weakened. 17 references, 6 figures, 4 tables.

Research Organization:
Kaspiiskii Nauchno-Issledovatel'skii Institut Rybnogo Kozyaistava, Makhachkala, USSR
OSTI ID:
5193447
Journal Information:
J. Ichthyol. (Engl. Transl.); (United States), Journal Name: J. Ichthyol. (Engl. Transl.); (United States) Vol. 21:3; ISSN JITHA
Country of Publication:
United States
Language:
English

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Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL ACCUMULATION
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BLOOD CHEMISTRY
BODY
BODY FLUIDS
BRAIN
CENTRAL NERVOUS SYSTEM
COMPARATIVE EVALUATIONS
DIGESTIVE SYSTEM
DISTRIBUTION
ELEMENTS
ERYTHROCYTES
FISHES
GILLS
GLANDS
KIDNEYS
LEUKOCYTES
LIVER
MATERIALS
MERCURY
METABOLISM
METALS
NERVOUS SYSTEM
NITROGEN
NONMETALS
ORGANS
RESPIRATORY SYSTEM
SPLEEN
TISSUE DISTRIBUTION
VERTEBRATES