Biochemical composition in Scylla serrata (Forskal) of Chakaria Sundarbanarea, Bangladesh

Biochemical composition (protein, fat, ash, moisture and carbohydrate) of maleand female of Scylla serrata in Chakaria Sundarban area were studied. One factorANOVA indicated the significant differences of protein, fat, ash and moistureconcentration between male and female of S. serrata. The yearly mean proteincontent 17.69 plus minus 2.14% was recorded for male and 19.39 plus minus 1.29%in female on wet weight basis. The highest protein content in male was recordedduring December (20.10%) and for female in February (20.43%) and the lowestprotein content for male in May (14.00%) and for female in August (17.20%). Theyearly average fat content (0.51 plus minus 0.12%) was recorded in male and (0.62plus minus 0.13%) was recorded for female S. serrata. The highest fat content wasrecorded for male in December (0.75%) and lowest in May (0.38%). In the female S.serrata highest fat content 0.78% was recorded in February and lowest (0.44%)during July and August. Correlation analysis showed a positive relation betweenthe protein and fat content of S. serrata (r = 0.864, t = 7.67, df = 22). Thehighest moisture content was found in male during May (83.50 %) and for femalein August (79.50%) and the lowest in December (76.5%) for male and female inMarch (74.98%). In male S. serrata highest ash content was recorded in December(2.22%) and for female during April (2.34%). Highest carbohydrate content wasrecorded in male during May (0.92%) and in female during September (1.29%).Correlation matrix showed the protein and fat content had positive correlationwith pH, Dissolved Oxygen (DO), salinity and as well as water transparency incase of female S. serrata and male indicated a negative relation with recorded DOand salinity of the investigated area.