Laboratory experiment was conducted to study sex specific total haemocytes count (THC) of mud crab, Scylla serrata (Forskâl, 1775) during the month August, 2019 from estuary river Subarnarekha, West Bengal, India. The quantitative analysis has shown that THC adult female (2.94×107± 0.15 cells/ml) is higher than male (1.89×107± 0.11cells/ml). in seems be associated with reproductive functions fe...

We have studied mitochondrial DNA variation in a local population of the leaf beetle species Gonioctena olivacea, to check whether its apparent low dispersal behaviour affects its pattern of genetic variation at a small geographical scale. We have sampled 10 populations of G. olivacea within a rectangle of 5 x 2 km in the Belgian Ardennes, as well as five populations located approximately along...

Nesting behaviour of sea turtles remains a subject to study, due their enigmatic pattern seasonal breeding activities. In the present characteristics turtle, Olive Ridley (Lepidochelys olivacea) at Ramnagar along N-E coast North Andaman Islands were investigated, for nesting periods 2016-2017. is dominant turtles, with more than 300 individuals every season least 75% hatching success rate. It o...