Abstract
Length-weight relationship parameters of carp (Cyprinus carpio) males, females, and combined sexes were calculated. Seasonal variations in condition factor (K), gonadosomatic index (GSI), and processing yield of wild carp are presented. A resting period (October-March) and another one of rapid growth (April-September) were observed in gonads of female carp. Spawning took place in August-September. During the gonadal resting period, high values of K were observed. After spawning, K was at a minimum value. A positive correlation between K and yield was shown (r2 = 0.852, P < 0.001). The yield from headed and gutted carp was negatively correlated with female GSI (r2 = 0.845, P < 0.001). Physical and biological parameters obtained for carp were compared to those previously studied for hake (Merluccius hubbsi), confirming similar characteristics due to seasonal effects.
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