Reproduction of the jack mackerel, Trachurus japonicus Temminck et Schlegel in the coastal waters around Jeju Island, Korea: Maturation and spawning

H. Cha, Jae Bong Lee, Sukyung Kang, D. Chang, J. Choi
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引用次数: 14

Abstract

was investigated based on the samplescaptured in the coastal waters around Jeju Island from January 2007 to December 2008. Gonadosomatic indexbegan to increase in March, and reached a maximum between April to June. After spawning it began to decreasefrom August. Reproductive season was estimated to March-July, with peak in April. Fecundity was proportionalto the size of the female, with the clutch size varying from 33,493 eggs in the smallest female(FL27.0cm) to627,061 eggs in the largest(FL40.6cm). Size at 50% sexual maturity(FL
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韩国济州岛附近海域青花鲭鱼的繁殖:成熟和产卵
根据2007年1月至2008年12月在济州岛附近海域捕获的样本进行了调查。促性腺指数从3月开始升高,4 ~ 6月达到最大值。产卵后,从8月开始减少。繁殖季节在3 - 7月,繁殖高峰在4月。繁殖力与雌性的大小成正比,最小的雌性(FL27.0cm)的卵数为33,493个,最大的(FL40.6cm)的卵数为627,061个。50%性成熟时的大小(FL)
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