Abstract

TEMPERATURE DEPENDENT ALTERATIONS OF NUCLEIC ACID CONTENT IN VARIOUS TISSUES OF FRESHWATER CRAB BARYTELPHUSA GUERINI FROM NANDED REGION (MS)

R.P.Mali* and P.N. Chavan**

Abstract

The effect of temperature on nucleic acid content on various tissues of freshwater crab, Barytelphusa guerini for 24, 48,72 & 96 hours has been studied experimentally. The value of RNA contents were decreased at both low & high temperature as compared to normal temperature except gill. The animal may need extra energy to overcome the stress, and ultimately metabolism is directed to rise up. In gills for recovery and maintenance of physiology the RNA content starts to rise up to attain the normal situation. Where the value of DNA content were decreases to both temperature as compared to normal temperature. The values of RNA & DNA content were expressed in mg/g wet wt. of tissue.

Keywords: Temperature, Nucleic acid, Barytelphusa guerini.