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바닥문절 (Sagamia geneionema) 암컷의 생식주기

Reproductive Cycle of Female Hairychin Goby Sagamia geneionema

  • 허상우 (제주대학교 해양과환경연구소) ;
  • 김성준 (제주대학교 해양과환경연구소) ;
  • 송영보 (제주대학교 해양과환경연구소) ;
  • 이치훈 (제주대학교 해양과환경연구소) ;
  • 임봉수 (제주대학교 해양과환경연구소) ;
  • 노섬 (제주대학교 해양과학부) ;
  • 백혜자 (부경대학교 자원생물학과) ;
  • 김형배 (강원도립대학 해양생물자원개발과) ;
  • 이영돈 (제주대학교 해양과환경연구소)
  • Hur, Sang-Woo (Marine and Environmental Research Institute, Cheju National University) ;
  • Kim, Sung-Jun (Marine and Environmental Research Institute, Cheju National University) ;
  • Song, Young-Bo (Marine and Environmental Research Institute, Cheju National University) ;
  • Lee, Chi-Hoon (Marine and Environmental Research Institute, Cheju National University) ;
  • Lim, Bong-Soo (Marine and Environmental Research Institute, Cheju National University) ;
  • Roh, Sum (Faculty of Applied Marine Science, Cheju Notional University) ;
  • Baek, Hea-Ja (Department of Marine Biology, Pukyong National University) ;
  • Kim, Hyung-Bae (Department of Marine Bio-resources, Gangwon Provincial University) ;
  • Lee, Young-Don (Marine and Environmental Research Institute, Cheju National University)
  • 발행 : 2006.10.31

초록

This study investigated the reproductive cycle of the female hairychin goby, Sagamia geneionema, histologically. The fecundity of female hairychin goby ranged from 1,002 to 1,240 eggs when they reached a total length of 9.1-10.0 cm. Fecundity is related to total length. The gonadosomatic index (GSI) increased from December (1.87$\pm$0.46) and reached a maximum in April (11.57$\pm$1.92). The histological changes in the ovary were correlated with the GSI. Oocytes at the chromatin-nucleolus and peri-nucleolus stages were observed in the ovary year-round. In December, oocytes containing yolk appeared in the ovaries of a few fish. Most oocytes appearing in January were at the yolk globule stage. The frequency of oocytes appearing at the yolk globule stage from January to March was higher than in other months. Subsequently, empty follicles and atretic oocytes were observed in the ovaries in May. Based on the histological observations of gonad development and the monthly change in the GSI, the reproductive cycle was classified into the following successive stages: growing (October to November), mature (December to January), ripe and spawning (February to April), and degenerative and resting (May to September) stages. The histological observations of ovaries during the spawning period indicate that this species is a multiple spawner with abbreviated iteroparity based on the developmental pattern of oocytes.

키워드

참고문헌

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피인용 문헌

  1. 실내 사육한 줄가자미(Clidoderma asperrimum)의 성 성숙과 생식주기 vol.24, pp.6, 2006, https://doi.org/10.13000/jfmse.2012.24.6.1003