Biometric relationships of Mactra violacea (Gmelin) from Kerala,
2011
Laxmilatha, P
The length-weight (L-W) and other biometric relationships of the surf clamMactra violacea, collected from the north coastof Kerala are presented in this study. InM. violacea, the L-W relationship between males and females was not found to besignificantly different and therefore a combined equation was derived. The growth in length is accompanied by weightincrease (isometric growth, b = 1). However, in all other biometric relationships such as length-width (L - B), length-height(L - H), total weight-meat weight (TW - MW), total weight-shell weight (TW - SW), and shell weight–meat weight(SW - MW)), allometric growth was observed. In the case of L - B, L - H and TW - MW, a positive biometric relationshipexists (b > 1) while in TW - SW and SW - MW, a negative biometric relationship (b< 1) was observed.
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