Reproductive ecology of rabbit fish, Siganus fuscescens were investigated from samples collected monthly in the coastal waters off Jeju Island of Korea from February to December 2014. In male and female of S. fuscescens, the values of GSI were reached high values between July to August in which the water temperature was high, and then decreased until December. The occurrence of individuals which have mature eggs in ovary were higher from July to August. Therefore, a main spawning season was estimated from July to August, with the highest peak in July. Throughout histological observation of the ovary in the spawning period, S. fuscescens belong to an group-synchronous and has a one spawning season a year. Fecundity of ovary ranged from 380,000 to 2,600,000 during the spawning period. Size at 50% sexual maturity, determined from logistic equation, were 25.1 cm TL which is over two years.

서 론
재료 및 방법
결 과
    암ㆍ수별 전장조성
    생식소숙도지수 월변화
    포란수
    난소 발달의 조직학적 변화
    정소 발달의 조직학적 변화
    생식주기
    군성숙체장
고 찰
결 론
References

• 이승종(국립수산과학원 서해수산연구소) | Seung-Jong LEE (West Sea Fisheries Research Institute, National Institute of Fisheries Science) Corresponding author
• 김맹진(국립수산과학원 서해수산연구소) | Maeng-Jin KIM (West Sea Fisheries Research Institute, National Institute of Fisheries Science)
• 한송헌(국립수산과학원 제주수산연구소) | Song-Heon HAN (Jeju Fisheries Research Institute, National Institute of Fisheries Science)