Contribution a la biologie des Rajidae des cotes tunisiennes. 18. Raja melitensis Clark, 1926. Relations taille - poids du corps, du foie et des gonades. Rapports hepato et gonosomatique. Coefficients de condition

Abstract

The analysis of size-body weight, liver and gonad weight relationships points out a relation with growth in all individuals but more important in the adult ones. Hepato and gonosomatic relationships increase with size; in adult males and females, they are subjected to seasonal changes depending on reproductive cycle. Body condition is decreasing in adults of both sexes but these seasonal changes are mainly dependant from ecological factors and diet.