Abstract

TEMPERATURE INDUCED CHANGES IN CHOLESTEROL CONTENT FROM DIFFERENT BODY PARTS OF FRESH WATER BIVALVE, INDONAIA CAERULEUS (PRASHAD, 1918) DURING WINTER SEASON.

*K.B. Ningule, A.N. Vedpathak and S.D. Ovhal

ABSTRACT

Considering the metabolic shifts in bivalve molluscs, increase in temperature of water (Which is important environmental stress factor), we report here the effect of rise in temperature on the cholesterol content from different body parts of fresh water bivalve, Indonaia caeruleus like mantle, hepatopancreas, gonad and foot of adult fresh water bivalve, Indonaia caeruleus (from Godavari river at Paithan during (December-January) during winter season. In the present study on Indonaia caeruleus due to effect of increase in temperature of water, the cholesterol content showed significant increase from mantle on 2ndand from gonad on 2ndand 8th day. The cholesterol content significantly decreased from mantle, on 16th day from hepatopancreas on 8th day and from foot on 8th & 16th day. Bivalves of approximately equal size are exposed to increase in temperature 300c during winter for 16 days. Due to rise in temperature the cholesterol content showed more decrease from mantle on 16th day. The results of the experiments are discussed in light of physiological mechanisms involved in the fresh water bivalve mollusks.

Keywords: Freshwater bivalve, temperature, cholesterol.