Perkembangan larva dalam embriogenesis karang Acropora hasil pemijahan ex-situ

Abstract

Fertilization and larval development determine the coral population survival of species, which has a difference characteristic of embryogenesis. This research wasaimed to compare the embryo and larval development spawned in November 2011 in Grear Barrier Reef, Australia. Embryonic cells development were observed in interval timesfrom one cell of egg to multicellular stage (prawnchip), and larval development observed from the prawnchip stageto the planulae. The results showed the development of embryos and larvae significantly difffered between two species, i.e. embryos and larvae of acropora millepora grew faster than A.tenuis. The maximum size of planulae larvae of A. millepora (800-1000 pm) is biggerthan A. tenuis (650-900 pm). Embryo and larvae development were different due to species variability, hence this research can be adapted for laboratory proccess of coral larvae nursery.