Reproductive performance of wild and hatchery-reared black sea turbot, psetta maxima, in the southern black sea coast

Abstract

In this study, spawning period, total fecundity, fertilization and hatching rates of wild and hatchery-reared turbot, Psetta maxima, were investigated. Fish were spawned over a 3-month period, from April to June. Wild broodstock consisted of sixteen females with a mean weight of 3742±1509 g. Hatchery-reared broodstock consisted of seventeen females with a mean weight of 3604±1398 g. Mean total fecundity was 2.4±1.71x106 and 2.3±1.75x106 eggs per female for wild and hatchery-reared broodstock, respectively. Fertilization and hatching rates were 59.2±17.07% and 67.3±30.67% for wild and 67.1±18.87% and 61.3±30.85% for hatchery-reared broodstock. The reproductive parameters of wild and hatchery reared turbot showed no significant difference, which warrants further investigation of both in provision of a sustainable fishery.