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학술저널

東京灣産 문치가자미 Limanda yokohamae(GUNTHER)의 成熟과 産卵期에 관하여

Maturity and Spawning Season of the Limanda yokohamae(GUNTHER) in Tokyo Bay, Japan

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Maturity and spawning season of the Limanda Yokohamae in Tokyo Bay was examined from seasonal changes in percentage occurrence of mature gonad index. The materials used in this study consist of 1,025 specimens from April 1986 to may 1988. Analysis showed that spawning season Iasted from December to March in next year. The peak of the spawning occurs from end of November to middle of February. Individual fish spawn only one time each spawning season. No specimens smaller than 135mm, body length, are found maturing in both females and males. of them are maturing at one year old.

Ⅰ. 서언

Ⅱ. 재료 및 방법

Ⅲ. 결과 및 고찰

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