Pollution Research Paper

Vol.31, Issue 2, 2012; Page No.(207-211)

HISTOPATHOLOGICAL CHANGES INDUCED BY ARSENIC IN THE GILL OF FRESH WATER FISH, LABEO ROHITA

K. PAZHANISAMY AND N. INDRA

Abstract

Studies on the histopathological effects of the two different sublethal concentrations such as lower and higher sublethal concentrations of arsenic (1/10th 0.27 ppm & 1/3rd 0.91 ppm of the 96 h LC 50) on Labeo rohita revealed that these metallic salt is capable of producing damaged secondary lamellae and changes in its cellular levels in gill tissues. These were marked pathological changes like damaged vascular layer, curling of secondary lamellae, shortening of secondary lamellae in the gill tissues. All these pathological changes makes the fish less fit for survival. The study is useful as the indicators of water pollution and reveals the effects of arsenic on the gill of fish.

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