Feeding Depths of Wild Caught Yellowfin Tuna Thunnus albacores Juveniles and Skipjack Tuna Katsuwonus pelamis in Sea Cages

文献类型： 外文期刊

第一作者： Ma, Zhenhua

作者： Ma, Zhenhua;Yu, Gang;Wu, Shaosen;Wu, Qia'er;Ma, Zhenhua;Wu, Shaosen;Yu, Gang;Wu, Qia'er;Ma, Zhenhua;Wu, Shaosen;Yu, Gang;Wu, Qia'er;Meng, Xiangjun

作者机构：

关键词： Feeding; growth and survival; yellowfin tuna Thunnus albacares; skipjack tuna Katsuwonus pelamis

期刊名称：ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH （ 影响因子：0.287； 五年影响因子：0.593 ）

ISSN： 0792-156X

年卷期： 2017 年 69 卷

页码：

收录情况： SCI

摘要： This study was conducted in the lagoon of Mischief Reef, South China Sea to test the feasibility of feeding and rearing wild caught yellowfin tuna Thunnus albacares and skipjack tuna Katsuwonus pelamis juveniles in small, deep seawater, cages. Fish started active feeding four days after transfer to the rearing cage. Initial feeding depth between yellowfin tuna and skipjack tuna was not significantly different (P > 0.05). The initial feeding depth for yellowfin tuna juveniles was 2.97 +/- 1.09 m, and skipjack tuna fed at 2.95 +/- 0.77 m. After the 30 day rearing experiment specific growth rates of yellowfin tuna and skipjack tuna were: 0.25 +/- 0.02 %/day and 0.32 +/- 0.03%/day, respectively; survival rate of yellowfin tuna was 100%, and the survival rate of skipjack tuna was 82.6%. The estimated feed conversion ratio was 9.73 in this study. The results of this study provide practical data for culturing wild caught yellowfin tuna and skipjack tuna juveniles in sea cages.

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