Studies on early mass mortality during hatchery rearing of three grouper species, malabar grouper Epinephelus malabaricus, red spotted grouper Epinephelus akaara, and leopard coral grouper Plectropomus leopardus
2008
Yoseda, K.(Seikai National Fisheries Research Inst., Ishigaki, Okinawa (Japan). Ishigaki Tropical Station)
Some grouper species belonging to the genera of Epinephelus and Plectropomus, studies for aquaculture and stock enhancement in various countries have been undertaken because these species have a high economic importance for fisheries. However, mass-scale rearing of grouper species has not been successful compared to other target aquaculture species such a red sea bream Pagrus major and Japanese flounder Paralichthys olivaceus owing to an unknown cause of early mass mortality. For this reason, the cause and mechanism of the early mortality during endogenous nutrition and initiation of exogenous nutrition is urgently required to elucidate making improve on early survival under mass-scale rearing. In the present study, three species of hatchery-reared grouper, Malabar grouper Epinephelus malabaricus, red spotted grouper Epinephelus akaara, and leopard coral grouper Plectropomus leopardus were studied to elucidate the cause of early mass mortality under rearing conditions.
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