갯장어(Muraenesox cinereus)와 갈창갯장어(M. bagio)의 산란생태 비교
Comparative Spawning Ecology of Daggertooth Pike Conger Muraenesox cinereus and Common Pike Conger M. bagio in the South Sea of Korea
고은혜(국립수산과학원 연근해자원과); 권대현(국립수산과학원 연근해자원과); 박정호(국립수산과학원 연근해자원과); 김영혜(국립수산과학원 연근해자원과)
53권 1호, 98~102쪽
초록
We examined the comparative spawning ecology of daggertooth pike conger Mureanesox cinereus and common pike conger M. bagio in the South Sea of Korea from May 2018 to December 2019. In the South Sea of Korea, the mean total length (TL) of M. cinereus was significantly smaller than that of M. bagio. The sex ratios of both species were skewed toward females. The spawning period of M. cinereus was from June to October, while the spawning period of M. bagio was from August to October. The lengths at 50%, 75%, and 97.5% sexual maturity of M. cinereus females were estimated as 54.6 cm, 60.4 cm, and 74.1 cm TL, respectively. It was not possible to estimate lengths at sexual maturity for M. bagio in the South Sea of Korea due to the absence of immature stages.
Abstract
We examined the comparative spawning ecology of daggertooth pike conger Mureanesox cinereus and common pike conger M. bagio in the South Sea of Korea from May 2018 to December 2019. In the South Sea of Korea, the mean total length (TL) of M. cinereus was significantly smaller than that of M. bagio. The sex ratios of both species were skewed toward females. The spawning period of M. cinereus was from June to October, while the spawning period of M. bagio was from August to October. The lengths at 50%, 75%, and 97.5% sexual maturity of M. cinereus females were estimated as 54.6 cm, 60.4 cm, and 74.1 cm TL, respectively. It was not possible to estimate lengths at sexual maturity for M. bagio in the South Sea of Korea due to the absence of immature stages.
- 발행기관:
- 한국수산과학회
- 분류:
- 수산학