전자저널 > 전자저널 > Effects of serotonin concentration on spawning induction in Pacific oyster Crassostrea gigas

Effects of serotonin concentration on spawning induction in Pacific oyster Crassostrea gigas

Ki Tae Kim, Mi Seon Park and Han Kyu Lim

Southeast Sea Fisheries Research Institute, NFRDI, 398-68, Sanyangilju-ro, Sangyang-Up Tongyeong, Gyoengnam 650-943, Korea 1Mokpo National University, 1666 Youngsan-ro, Muan, Jeonnam, 534-729, Korea

In order to obtain a large number of fertilized eggs for seedling production, experiment was carried out examine effects of serotonin on spawning of the Pacific oyster Crassostrea gigas. The shorter response time to initial spawning in case of serotonin injection showed, the higher serotonin injected with 7.6-27 min. The response time to initial sperm releasing showed the same tendency with female. The highest response rates and eggs amount spawned were showed in the highest concentration. The serotonin injection had no effect on frequency of germinal vesicle breakdown (GVBD), fertilization and hatching rate.

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