BIO-INDICES AND PROXIMATE COMPOSITION OF MUSCLE IN CHANNA PUNCTATA (BLOCH, 1793) OCCURRING IN WETLANDS OF WEST BENGAL, INDIA

摘要

Bio-indices like gonado-somatic index (GSI) and hepato-somatic index (HSI) as well as proximate composition of muscle of Channa punctata collected from wetlands of Nadia district of West Bengal for a period of eight months were studied. An inverse relationship between GSI and HSI was observed with GSI values exhibiting an increasing trend from October onwards having peak during month of May. Mean monthly GSI values were significant (p<0.05). The proximate composition of muscle exhibited significant variations (p<0.05) in case of lipid, protein and ash contents. The moisture and fat content showed an inverse relation to each other. The variation in body composition was mainly due to foraging and gonadal development of the species.