전자저널 > 전자저널 > Effect of Three Microalgal Species on Gonadal Development and Sex Maturation of Ark Shell, Scapharca broughtonii

Effect of Three Microalgal Species on Gonadal Development and Sex Maturation of Ark Shell, Scapharca broughtonii

Byeong-Hee Min, Byeong-Hak Kim, Sung Yeon Kim, Yun Kyung Shin and Sung Bum Hur

Busan Marine Fisheries Resources Research Institute, Busan 618-814, Korea Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute, Tongyeong 650-743, Korea Research and Development Planning Division, National Fish

Even though ark shell, Scapharca broughtonii is commercially important species, its artificial seed production is not yet fully developed. This study was carried out to understand the effect of three microalgal species on gonadal development and sex maturation of S. broughtonii in terms of broodstock management and food organism. Isochrysis galbana, Phaeodactylum tricornutum and Tetraselmis tetrathele were supplied to S. broughtonii broodstock in single or mixed. And condition index, gonadal development, sexual maturation and survival of the broodstock were analysed. After 45 rearing days, frequency of ripe stage of gonadal phases, rate of induced sexual maturation and survival of S. broughtonii broodstock fed mixed diet with 3 microalgal species or single diet of T. tetrathele were the highest.

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