Reproductive Cycle of the Female Grey Mullet, Mugil cephalus, on the Coast of Jeju Island, Korea

제주 연안 숭어, Mugil cephalus 암컷의 생식주기

  • Kim, Sung-Jun (Marine and Environmental Research Institute, Cheju National University) ;
  • Lee, Young-Don (Dept. of Fisheries Marine Life Science, Pukyong National univ.) ;
  • Yeo, In-Kyo (Marine and Environmental Research Institute, Cheju National University) ;
  • Baek, Hea-Ja (Dept. of Fisheries Marine Life Science, Pukyong National univ.) ;
  • Kim, Hyung-Bae (Dept. of Marine Biotechnology, Kangwon Univ.) ;
  • Nagae, Masaki (Dept. of Marine Biological Sciences, University of Hokkaido) ;
  • Soyano, Kiyoshi (Dept. of Marine Biological Sciences, University of Hokkaido) ;
  • Hara, Akihiko (Marine Research Institute, University of Nagasaki)
  • Published : 2004.03.01

Abstract

숭어의 생식주기를 밝히기 위해 2002년 2월부터 2003년 3월까지 제주도 동남부 연안에서 채집하였고, 난모세포의 발달과정을 조직학적 방법으로 관찰하였다. 난모세포의 발달과정은 GSI변화와 밀접하였다. GSI는 9월에 급격히 증가하여 12월에 최고 값을 나타내었다. 난소의 조직학적 관찰결과, 염색인기와 주변인기의 난모세포는 연중 관찰되었으며,8월에는 일부에서 난황을 포함하는 난모세포가 관찰되었다. 대부분의 난모세포가 10월과 12월에는 난황구기 단계의 난모세포로 발달했다. 10월과 12월에 난황구기 난모세포들을 가진 개체의 출현이 가장 높았으며, 잔존여포와 퇴화 난모세포는 2월부터 관찰되었다. 숭어의 주 산란기는 11월에서 1월이고, 난군동기발달형의 난소를 가지며 외양으로 이동하여 산란하는 어류에 속한다.

Keywords

References

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