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学科主题: Fisheries; Marine & Freshwater Biology
题名: Effects of light intensity, stocking density, feeding frequency and salinity on the growth of sub-adult seahorses Hippocampus erectus Perry, 1810
作者: Lin, Q ; Zhang, D ; Lin, JD
通讯作者: linqiangzsu@163.com
关键词: Hippocampus erectus ; Light intensity ; Stocking density ; Feeding frequency ; Salinity
刊名: AQUACULTURE
发表日期: 2009
卷: 292, 期:40545, 页:111-116
收录类别: sci
部门归属: [Lin, Qiang] Chinese Acad Sci, Key Lab Trop Marine Environm Dynam, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Zhang, Dong; Lin, Junda] Florida Inst Technol, Vero Beach Marine Lab, Vero Beach, FL 32963 USA
项目归属: LED
摘要: This investigation examined the effects of light intensity, stocking density, feeding frequency and salinity on the growth of sub-adult seahorses, Hippocampus erectus and the development of the brood pouch in mate seahorses. During the 8-week study, seahorses cultured at a light intensity of 1000 lx had higher incremental wet weight and standard length than those at 100 lx and 2500 lx. Seahorse growth rate decreased with increasing stocking density (0.25, 0.5, 1 and 1.5 inds/L., respectively) during the 10-week study. Male seahorses grew much faster than females, with incremental wet weights of male and female seahorses of 6.64 +/- 1.601 g and 5.87 +/- 1.173 g. respectively, in the 0.25 inds/L treatment. The brood pouches of the males emerged earlier, and the ratio between the pouch length and standard length was higher at the higher stocking densities (I and 1.5 inds/L). The final body weight, weight gain (WG) and specific growth rate (SGR) of the male and female seahorses that were fed 4 times per day were the highest, while those fed 3 times per day had the highest standard length after 10 weeks of culture. The ratio of the length of male brood pouch to standard length was the highest in the low feeding frequency treatment (fed once a day). The incremental wet weight and standard length of sub-adult seahorses differed significantly among the different salinities (35, 33, 31, 29 and 27 parts per thousand) after 8 weeks of culture (F-4.60 = 18.950, F-4.60 = 9.225, P<0.05) with greatest growth at 31-33%.. Results demonstrated that appropriate light intensity, stocking density, feeding frequency and salinity can improve the growth rate of the sub-adult seahorses and affect the development of the brood pouch in male seahorses. (C) 2009 Elsevier B.V. All rights reserved.
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WOS记录号: WOS:000267091100018
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6109
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
Lin, Q; Zhang, D; Lin, JD.Effects of light intensity, stocking density, feeding frequency and salinity on the growth of sub-adult seahorses Hippocampus erectus Perry, 1810,AQUACULTURE,2009,292(40545):111-116
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