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의약학
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복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
Population ecology of Microphysogobio longidorsalis was investigated in the upper part of the Han River in Korea from 1993 to 2003. The habitat was a current area, and stream form was Aa or Aa-Bb. The major cohabitating fishes were Zacco temmincki, Zacco platypus, and Pungtungia herzi. The total lengths in this population indicated that the below 70 mm group is one year old, the 70~110 mm group is two years old, and the group longer than 110 mm is over three years old. Males and females became sexually mature at sizes longer than 80 mm total length. The prosperous spawning season was April to March with the water temperature at 15~17°C. The mean number of eggs in the ovaries was 7,334. The mean mature egg size was 1.03±0.072 mm. The sex ratio all the year round of female to male was 1:0.87. Stomach contents were mainly phytoplankton.
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UCI(KEPA) : I410-ECN-0101-2014-405-000973535