Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Influence of Water Temperature on Spawning of Chinese Bleak, Aphyocypris chinensis

왜몰개 (Aphyocypris chinensis)의 산란에 미치는 수온의 영향

  • Lee, Sung-Kyu (Toxicology Research Center, Korea Research Institute of Chemical Technology) ;
  • Choi, Shin-Sok (Department of Biology, College of Natural Sciences, Chungnam National University) ;
  • Yeom, Dong-Hyuk (Toxicology Research Center, Korea Research Institute of Chemical Technology)
  • 이성규 (한국화학연구원 안정성연구센터) ;
  • 최신석 (충남대학교 자연과학대학 생물학과) ;
  • 염동혁 (한국화학연구원 안정성연구센터)
  • Published : 2001.12.31
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Abstract

Studies were conducted to determine the effects of water temperature on the number of spawning, egg production, spawning intervals and hatching success of Chinese bleak, Aphyocypris chinensis. Adult fish were exposed to water temperatures of 19, 22, 25 and $28{\circ}^C$ for two months in the laboratory. The spawning number, egg productivity, and hatching rate increased as water temperature increased between $19{\circ}^C$ and $25{\circ}^C$. Maximum egg production and hatching rate occurred at $25{\circ}^C$, whereas the spawning intervals decreased as water temperature increased except for the treatment of $28{\circ}^C$. The shortest spawning interval observed at $25{\circ}^C$.

왜몰개, Aphyocypris chinensis의 산란에 미치는 수온의 영향을 알아보기 위하여, 19, 22, 25, $28{\circ}^C$ 수온에서 2개월 동안 사육을 하면서 산란횟수, 생산된 총 수정란 수, 산란간격 및 부화율 등을 조사하였다. $19{\circ}^C$와 $25{\circ}^C$사이에서는 수온이 증가하면 할수록 산란횟수, 생산된 총 수정란 수 및 수정란의 부화율이 증가하여 $25{\circ}^C$에 노출된 암컷과 수컷에서 가장 많은 산란횟수, 난 생산 및 부화성공률과 가장 짧은 산란간격을 나타냈다. 그러나 $28{\circ}^C$에서는 $25{\circ}^C$보다 수온이 증가했음에도 오히려 4개의 실험수온 중에서 가장 적은 산란횟수, 난 생산 및 부화율과 가장 긴 산란간격을 나타냈다.

Keywords

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