The maturation and spawning of black scraper, Thamnaconus modestus were studied using samples collected monthly from March, 2015 to February, 2016 in the coastal waters off Middle East Sea, Korea. The gonadosomatic index (GSI) of female was the highest in June. The spawning periods lasted from March to September based on histological observation of female gonad development. The percentage of sexually mature females estimated from a logistic function was over 50% for the size group 18.02 cm (total length, TL). The size of eggs spawned was between 0.40 to 0.58 mm. Fecundity varied between 185,648 and 9,747,250 eggs. The relationship between the fecundity and TL of the fish was expressed in the fecundity equation as F = 0.0297TL5.4835.

서 론
 재료 및 방법
 결과 및 고찰
  생식소중량지수(GSI)의 변화와 생식소의 조직학적 변화
  군성숙 전장과 포란수
 결 론
 References

• 남기문(부경해양생물연구소) | Ki-Mun NAM (Pukyong Marine Life Research Institute)
• 유준택(국립수산과학원 수산자원연구센터) | Jun-Taek YOO (Fisheries Resources Research Center, National Institute of Fisheries Science)
• 김재원(강원도립대학교 해양생명과학과) | Jea-Won KIM (Department of Marine Life Science & Aquaculture, Gangwon Provincial College)
• 박종혁(경상대학교 해양식품생명의학과/해양산업연구소/해양생물교육연구센터) | Jong Hyeok PARK (Department of Seafood and Aquaculture Science/Institute of Marine Industry/Marine Bio-Education and Research Center, Gyeongsang National University)
• 백근욱(경상대학교 해양식품생명의학과/해양산업연구소/해양생물교육연구센터) | Gun Wook BAECK (Department of Seafood and Aquaculture Science/Institute of Marine Industry/Marine Bio-Education and Research Center, Gyeongsang National University) Corresponding author