Life history responses to variations in temperature by the marine amphipod Eogammarus possjeticus (Gammaridae) and their implications for productivity in aquaculture

文献类型： 外文期刊

第一作者： Xue, Suyan

作者： Xue, Suyan;Mao, Yuze;Li, Jiaqi;Fang, Jianguang;Zhao, Fazhen;Xue, Suyan;Mao, Yuze;Li, Jiaqi;Zhu, Lixin

作者机构：

关键词： Temperature; Production; Embryonic development; Survival rate; Individual growth

期刊名称：HYDROBIOLOGIA （ 影响因子：2.694； 五年影响因子：2.781 ）

ISSN： 0018-8158

年卷期： 2018 年 814 卷 1 期

页码：

收录情况： SCI

摘要： The amphipod Eogammarus possjeticus is used as a potential living food in shrimp culture. Nevertheless, the productivity of the amphipod has been poorly studied. We conducted laboratory experiments to investigate the effects of temperature on the individual development and biomass production of E. possjeticus. The results revealed that the embryonic development time of E. possjeticus was shortened when temperature increased from 15 to 27A degrees C, and the shortest juvenile development time appeared at 21A degrees C. The survival rate of juveniles decreased with increasing temperature, and the maximum specific growth rate was found at 21A degrees C. Thus, a temperature of 21A degrees C was found to be the optimum temperature for biomass production of E. possjeticus in the laboratory. A population growth model was constructed with the experiment data based on the continuous population growth determination assumption. The longest survival time of E. possjeticus was about 260 days, and the optimal output quantity was up to 3.27 x 10(8) individuals, which was 1.60 x 10(6) times of the initial cultured individuals under the ideal indoor experiments conditions. Our research shows that E. possjeticus has potential to be cultured under controlled conditions at a commercial scale and serve as a food for intensive shrimp aquaculture.

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