Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Maturity and Spawning of the Greenling, Hexagrammos otakii in Coastal Waters near Incheon, Korea

인천 연안에 서식하는 쥐노래미(Hexagrammos otakii)의 성숙과 산란

  • Seung Hwan Lee (West Sea Fisheries Research Institute, National Institute of Fisheries (NIFS)) ;
  • Tae Hyoung Roh (West Sea Fisheries Research Institute, National Institute of Fisheries (NIFS)) ;
  • Dea Hyeon Kwon (West Sea Fisheries Research Institute, National Institute of Fisheries (NIFS)) ;
  • Dong Hyuk Choi (West Sea Fisheries Research Institute, National Institute of Fisheries (NIFS))
  • 이승환 (국립수산과학원 서해수산연구소 기후환경자원과) ;
  • 노태형 (국립수산과학원 서해수산연구소 기후환경자원과) ;
  • 권대현 (국립수산과학원 서해수산연구소 기후환경자원과) ;
  • 최동혁 (국립수산과학원 서해수산연구소 기후환경자원과)
  • Received : 2023.10.19
  • Accepted : 2023.11.24
  • Published : 2023.11.30
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Abstract

The aim of this study was to collect information regarding the sex ratio, size at sexual maturity, and the primary spawning period of Hexagrammos otakii. The sex ratio (female : male) was observed to be 1 : 1.2 (n =739 : 906, with females comprising 81.6% of the population). The gonadosomatic index (GSI) exhibited its highest values in November for females and October for males, coinciding with the primary spawning period from November to January. The total length required for 50% sexual maturity was determined through a logistic regression model and found to be 23.1 cm for females.

이번 연구는 인천 연안에 서식하는 쥐노래미(Hexagrammos otakii)의 성비, 성숙체장, 산란기를 구하였다. 암수성비는 1 : 1.2 (n=739 : 906, 전체 개체군의 81.6% 차지)로 암수 출현비율은 통계적 차이를 보이지 않았다. 쥐노래미 암컷의 생식소숙도지수(GSI) 값은 11월에 가장 높았고, 수컷은 10월에 가장 높게 나타났고, 산란기는 10월에서 1월로 추정되었다. 쥐노래미 암컷의 50% 성숙체장은 23.1 cm로 분석되었다.

Keywords

Acknowledgement

이 연구는 국립수산과학원 시험연구사업 "서해연안어업 및 환경생태조사(R2023009)"의 지원에 의해 수행되었습니다.

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