Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Annual Reproductive Cycle of Korean Yellow Croaker Larimichthys polyactis

자연산 수컷 참조기 Larimichthys polyactis의 생식년 주기

  • 강덕영 (국립수산과학원 서해수산연구소 증식연구팀) ;
  • 조기채 (국립수산과학원 서해수산연구소 증식연구팀) ;
  • 이진호 (국립수산과학원 서해수산연구소 증식연구팀) ;
  • 강희웅 (국립수산과학원 서해수산연구소 증식연구팀) ;
  • 김규희 (국립수산과학원 서해수산연구소 증식연구팀) ;
  • 김효찬 (부경대학교 양식학과)
  • Published : 2009.02.25
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Abstract

Spermatogenesis in male yellow croaker Larimichthys polyactis was histologically investigated by sampling testicular tissue from $2{\sim}3$ years old wild fishes captured from the coast of Mok-Po, South Korea. Spermatogenesis was characterized histologically, and staged according to the most advanced type of germ cell present. Annual reproductive cycle was classified into the following successive 4 stages: spermatogonia from August to September (rest stage), spermatogonia and spermatocytes from October to December (growth stage), spermatogonia, spermatocytes and spermatids from January to February (maturation stage), spermatogonia, spermatocytes, spermatids and spermatozoa from March to May (spermiation stage IV), and regressing testis from June to July (degeneration stage).

우리나라 서해 목포 연안에서 $2004{\sim}2005$년에 포획된 자연산 참조기 수컷을 이용해 정자 형성과정을 조직학적으로 조사하였다. 정자 형성과정은 정소 내 가장 빠른 성장 단계를 나타내는 배아세포를 기준으로 구분하였다. 그 결과 참조기의 정자형성 과정은 정원세포만이 존재하는 $8{\sim}9$월 휴지기, 정모세포가 출현하는 $10{\sim}1$월 성장기, 정모세포와 정세포가 공존하는 $12{\sim}2$월 성숙기, 정모세포, 정세포 및 정자가 함께 공존하는 $3{\sim}6$월 방정기, 퇴행성 정세포 및 정자가 관찰되는 $5{\sim}7$월 퇴화기와 같이 5단계로 나누어 볼 수 있었다.

Keywords

References

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