Comparison of protein content in the haemolymph of brachyuran crabs.

Abstract: Crustacean haemolymph proteins vary with nutritional state. Blood proteins considerably changed during imposed fasting, qualitative studies of blood protein were mainly based on electrophoretic mobility of proteins. For a long time it was thought that the hemocyanin was the only protein found in crustaceans. The protein content of the haemolymph of brachyuran crabs was studied. Crabs were collected from the Vellar estuarine environment. Protein concentration of the haemolymph was measured using a spectrophotometer. The concentration of protein in the haemolymph shows wide interspecific among brachyuran crabs. The haemolymph proteins from 15 species of brachyuran crab was studied among the species maximum protein content of 10.97 % in Scylla serrata and the minimum protein content of 2.30% in Thalamita chaptali was noticed. Key words: Estuary Crab Haemolymph Protein INTRODUCTION oocyte size, staying at a stable level at later stages oocyte Crabs are good sources of food including protein concentration of Scylla serrata [7]. But comparative source for marine lives as well as for human. The study on the haemolymph protein of bracyuran crabs was nutritional quality of the crab proteins were compared not studied in detail. In the present study, therefore, we vary favorable than that of muscle meat of mutton, described the haemolymph protein concentration of 15