Dr. Pritesh Ramanlal Gugale
Habitat dependent variations in the rate of oxygen consumption, rate of ammonia excretion and o: n ratio of freshwater bivalve, lamellidens marginalis from lotic and lentic water of godavari river at paithan, during summer.
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Considering the site (habitat) specific variations in the metabolic activities in the freshwater bivalves, we reported here the changes in the rate of oxygen consumption, rate of ammonia excretion and O: N ratio in the freshwater bivalve mollusc, Lamellidens marginalis (Lamark) from lotic and lentic water habitats on April-May during summer season. The adult freshwater bivalves, Lamellidens marginalis (82-84 mm shell length) from lotic and lentic water near Jayakwadi dam on Godavari river was selected for determination of rate of oxygen consumption, rate of ammonia excretion and O: N ratio. The adult bivalves from lotic water habitat showed high rate of oxygen consumption and low rate of ammonia excretion. The O: N ratio showed higher values in bivalves collected from lotic water than lentic water during summer season. The results of study are discussed in the light of possible physiological processes in freshwater bivalve molluscs.
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