Abstract
Cichlids represented about 54.51% of the total landed catch in Nozha Hydrodrome during 2008. The present work aims to give useful information on the stocks of Cichlid species (Oreochromis niloticus, Sarotherodon galilaeus, Oreochromis aureus and Tilapia zillii) and their management in the Hydrodrome. Length weight relationship, condition factor, length composition of the catch, length scale relationship, total length by the end of each year of life, growth in weight, Von Bertalanffy parameters, the values of total, natural and fishing mortalities, survival rates, length and age at first capture, length and age at recruitment, yield per recruit, biomass per recruit, determination of the biological reference points were studied. The present study concluded that, the fisheries status of the four cichlid species in Nozha Hydrodrome is not in an over exploited condition.
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