P.G. Department of Zoology, Ranchi University, Jharkhand, India
Received : 15th June, 2016; Revised : 20th August, 2016
Abstract : The freshwater crabs (Decapoda-Crustacea) Sartoriana spinigera are abundantly found in large numbers in shoreline areas of the ponds, lakes, wetlands and paddy fields of Jharkhand. Very little is known about the basic biology of this organism. Basic information of its life cycle and physiological parameters are completely lacking. To evaluate the health and physiology of this wild population of crab, biochemical parameters of its haemolymph were determined from collection of adult (male & female). Crab’s haemolymph parameters fluctuate according to their external environment, developmental stage and reproductive cycle. Variation in the biochemical composition of total proteins, has been studied. It has been observed that all these parameters are functions of sex.
Total plasma protein concentration in different weight groups of adult male (18.68-90.56g) and adult female (24-57.3g) was 5.52+1.76 g/dl and 3.71+1.22g/dl respectively. The differences between these means were statistically significant (p<0.001). The plasma protein concentration in male showed a significant positive correlation with body weight (r=0.969;p<0.001). But in female such relationship was not found. In the present paper the reason and significance for all these observations were discussed in details