Growth and survival of juvenile lined seahorse, Hippocampus erectus (Perry), at different stocking densities

文献类型： 外文期刊

第一作者： Zhang, Dong

作者： Zhang, Dong;Zhang, Dong;Zhang, Yinghui;Lin, Junda;Lin, Qiang;Lin, Qiang

作者机构：

关键词： growth performance;stocking density;species survival

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.082； 五年影响因子：2.415 ）

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年卷期：

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收录情况： SCI

摘要： The lined seahorse, Hippocampus erectus (Perry), is an important species in both medicinal and aquarium trades. The aim of this study was to evaluate the effects of stocking density (1, 3 and 5 individuals L-1) on the growth performance and survival of the early-stage juvenile H. erectus. The height (HT), wet weight, weight gain (WG) and specific growth rate (SGR) were affected significantly by the stocking density during the 40-day study. The HT, WG and SGR of the seahorse at 1 and 3 juveniles L-1 were significantly higher than that at 5 juveniles L-1. The survival of juveniles at the three stocking densities was not significantly different at day 25 (90.3 +/- 4.5%, 86.7 +/- 4.2% and 86.2 +/- 3.8% for 1, 3 and 5 juveniles L-1 respectively), but was significantly different at day 40 (87.8 +/- 3.9%, 69.6 +/- 4.2% and 52.9 +/- 2.8% for 1, 3 and 5 juveniles L-1 respectively). For the early-stage juvenile H. erectus, we recommend a stocking density of 3 juveniles L-1, but the density should be reduced to 1-2 juveniles L-1 to avoid reduced and variable growth and high mortality after 25 days.

分类号： S9

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