Effects of cadmium, naphthalene, and DDVP on gut carbohydrases activity in bream (Abramis brama L. ) and Mozambique tilapia (Oreochromis mossambicus Peters)

Journal Article · Tue Mar 01 04:00:00 EST 1994 · Bulletin of Environmental Contamination and Toxicology; (United States)

DOI:https://doi.org/10.1007/BF00197818· OSTI ID:6646135

Golovanova, I L; Chuiko, G M; Pavlov, D F ^[1]

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1. Institute of the Biology of Inland Waters, Borok (Russian Federation)

Previous research has shown that sublethal concentrations of cadmium, naphthalene and dichlorvos (DDVP) decreased growth rates in bream and Mozambique tilapia. One of the factors known to affect fish growth is the activity of gut digestive enzymes such as of lipases, proteases, carbohydrases. We assumed that toxicant-induced inhibition of the digestive enzyme activity and, consequently, the impaired digestion of food may contribute to the reduction of growth in fish exposed to toxicants. However, the influence of toxicants on digestive enzyme activities is poorly studied. The contribution of toxicant-induced changes of digestive enzymes activity to growth rate retardation in exposed fish remains unknown. The goal of this study was to examine the influence of an organophosphorus insecticide DDVP, a polyaromatic hydrocarbon naphthalene, and a metal cadmium on fish gut carbohydrase (CH) activity. 14 refs., 2 tabs.

• OSTI ID: 6646135
• Journal Information: Bulletin of Environmental Contamination and Toxicology; (United States), Journal Name: Bulletin of Environmental Contamination and Toxicology; (United States) Vol. 52:3; ISSN 0007-4861; ISSN BECTA6
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AROMATICS
BIOLOGICAL EFFECTS
CADMIUM
CONDENSED AROMATICS
DIGESTION
ELEMENTS
ENZYME ACTIVITY
FISHES
HYDROCARBONS
METALS
NAPHTHALENE
ORGANIC COMPOUNDS
VERTEBRATES