CARAPACE WIDTH WEIGHT RELATIONSHIPS OF MUD CRAB SCYLLA SERRATA (FORSKAL, 1775) FROM KARACHI COAST Page No: 2381-2386

Muhammed Atiqullah Khan and Javed Mustaqeem

Keywords: Karachi coast, carapace width, body weight, Scylla serrata.

Abstract: The length-weight and width-weight relationship study assumes an important prerequisite in fishery biological investigations. In this study, Carapace width weight relationship of both sexes of Mud Crab (Scylla serrata) were estimated. A total of 938 samples ranging from 40 to 200mm in width and weighing between 22g and 450g were collected during January 2009 to December 2010, and analyzed. The value of the regression coefficient for male (2.481), female (2.632) and combined sexes (2.571) in the present analysis are very much close to 3 and therefore Scylla serrata does follow the cube law.



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