Tony Setia Dharma, Ketut Maha Setiawati, Zafran, Jhon Harianto Hutapea, Warih Hardanu, Haris Kusmawan
The study aims to determine pompano fish larvae's initial feeding, critical period, and morphology development. The result showed that the broodstock fish spawned at 8.00-11.00 pm. The total number of eggs is 108.000, number of fertile eggs 60.000 pc spread in three fiber tank volume 1 m3 each fiber tank which filled with 800 L sea water. Then incubation with temperature 28-30 °C. The hatching time was at 08.00-10.00 am, and then the development of morphology larvae was observed. Parameters measured were total length of larvae (TL), development of larvae and initial feeding. The study used ten individuals in every measure. Yolk sac and oil globule volume in newly hatched silver trevally larvae. The yolk sac is completely absorbed at 2-3 days, and the oil globule at 3-4 days after hatching. The initial feeding of Giant trevally commenced after the absorption process of the yolk sac was completed 2-3 days before the absorption oil globule was completed so that initial feeding or exogenous nutrition could be carried out appropriately and produce seeds to support hatchery and sustainable mariculture efforts. © The Authors, published by EDP Sciences.
Research Center for Fishery, Research Organizations for Earth Sciences and Maritime, National Research and Innovation Agency; Brawijaya of Univercity Malang, East Java Province, Indonesia