Journal of Endocrinology and Reproduction

K. Durgabhavani ¹, M. P. Balasubramanian ¹

Affiliations
1 Department of Pharmacology and Environmental Toxicology, Dr. ALM PGIBMS, University of Madras, Taramani Campus, Chennai 600 113, IN

Abstract

The effect of Naphthalene on lactic acid and pyruvic acid was studied in ovary of the crab Scylla serrata with reference to ovarian maturation. The ovarian lactic and pyruvic acid level of Scylla serrata when reared in naphthalene free medium was 48.66, 67.33,90.66,75.99 and 43.99 μg/100mg wet tissue and 5.52,5.60,10.92,8.33,6.66 and 6.51 mg/100mg wet tissue at stage I, II, III, IV, V and VI ovary respectively. Both lactate and pyruvate were increased in all ovarian stages when crabs reared in 0.20mg/litre naphthalene concentration.

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K. Vijayavel ¹, R. D. Gomathi ¹, M. P. Balasubramanian ¹

Affiliations
1 Department of Pharmacology and Environmental Toxicology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani, Chennai-600 113, IN

Abstract

Generally, the reproductive tissues are the main targets for any environmental pollutants. In crustaceans pollutants accumulate in lipid rich yolk, the contents of which are mobilized in organ formation during larval development. The crabs were reared in individual and combined concentrations i.e. 10 mg of mercury, 100 mg of naphthalene and 10 mg of mercury with 100 mg of naphthalene for 96 hrs. The effects of mercury and naphthalene on the non-specific esterases and lactate dehydrogenase have been studied in muscle, hepatopancreas, ovary and haemolymph of a marine edible crab Scylla serrata, with reference to ovarian maturation.

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R. D. Gomathi ¹, K. Vijayavel ¹, M. P. Balasubramanian ¹

Affiliations
1 Department of Pharmacology & Environmental Toxicology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai-600 113, IN

Abstract

In a natural environmental aquatic organisms are not exposed to a single toxicant and frequently several chemicals may be involved.

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