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题名: The effects of water temperature on the survival, feeding, and growth of the juveniles of Anguilla marmorata and A. bicolor pacifica
作者: Luo, Mingzhong1, 2, 3; Guan, Ruizhang3, 4; Li, Zhongqin3, 4; Jin, Heng3, 4
通讯作者: Guan, RZ (reprint author), Minist Educ, Engn Res Ctr Eel Modern Tech Ind, Xiamen 361021, Peoples R China.
关键词: Eels ; Anguilla marmorata ; Anguilla bicolor pacifica ; Water temperature ; Survival ; Growth
刊名: AQUACULTURE
发表日期: 2013-06-20
DOI: 10.1016/j.aquaculture.2013.03.003
卷: 400, 页:61-64
收录类别: SCI
文章类型: Article
部门归属: [Luo, Mingzhong] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China ; [Luo, Mingzhong] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China ; [Luo, Mingzhong ; Guan, Ruizhang ; Li, Zhongqin ; Jin, Heng] Minist Educ, Engn Res Ctr Eel Modern Tech Ind, Xiamen 361021, Peoples R China ; [Guan, Ruizhang ; Li, Zhongqin ; Jin, Heng] Jimei Univ, Coll Fisheries, Xiamen 361021, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: This work was financially supported by the Special Fund for Agro-scientific Research in Scientific Research in Public Interest from the Ministry of Agriculture of China (eel 3-51), the Program of the Science and Technology Department of Fujian Province (2009 N0046, 2009 N2003-1), and the Project of Xiamen Science and Technology Bureau (3502Z20110014, 3502Z20123027).
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: In this study, we identified the effects of water temperatures on the survival, feeding, and growth of the juveniles of Anguilla marmorata and Anguilla bicolor pacifica which have been commercially cultured in southeastern China in recent years. Twelve groups of each species, each group of 20, were reared in 12 105-l tanks for 45 days at six water temperature levels of 8, 13, 18, 23, 28 and 33 degrees C (one level two groups). The results showed that A. marmorata all died within 10 days at 8 degrees C and most died at 13 degrees C, but survived normally at temperature of >= 18 degrees C. A. bicolor pacifica all died within 9 days at 8 degrees C and 20 days at 13 degrees C, and partly died at 18 degrees C and 23 degrees C, but survived normally at temperature of 28 degrees C and 33 degrees C during experiment. The maximum feeding rates of both species occurred at temperature of 33 degrees C, being 2.23 +/- 0.10 % day(-1) for A. marmorata and 2.41 +/- 0.06 % day(-1) for A. bicolor pacifica. However, the maximum feed conversion rates occurred at 28 degrees C, being 54.79 +/- 7.54 % for A. marmorata and 71.35 +/- 1.85 % for A. bicolor pacifica. The maximum daily weight gains (DWG) of both species, 2.63 +/- 0.12 g day(-1) for A. bicolor pacifica and 1.19 +/- 0.38 g day(-1) for A. marmorata, were also achieved at 28 degrees C with initial and final mean body weights of 5.62 +/- 0.30 g and 11.59 +/- 0.03 g for the former and 4.97 +/- 0.36 g and 7.18 +/- 0.80 g for the latter. The DWG of A. bicolor pacifica was significantly higher (P < 0.05) than A. marmorata at 28 degrees C and 33 degrees C. The specific growth rates of both species were positively correlated to water temperature (P < 0.01). The optimal growth temperature is estimated to be 27.6 degrees C for A. marmorata and 30.1 degrees C for A. bicolor pacifica. We conclude that A. marmorata and A. bicolor pacifica survive and grow better at water temperature of 28-33 degrees C than that of <= 23 degrees C. A. bicolor pacifica are more sensitive to low water temperature (<= 23 degrees C) than A. marmorata, but grow faster. Our results indicate that both species are suitable for commercial aquaculture, however the water temperature should be controlled relative higher. (C) 2013 Elsevier B. V. All rights reserved.
英文摘要: In this study, we identified the effects of water temperatures on the survival, feeding, and growth of the juveniles of Anguilla marmorata and Anguilla bicolor pacifica which have been commercially cultured in southeastern China in recent years. Twelve groups of each species, each group of 20, were reared in 12 105-l tanks for 45 days at six water temperature levels of 8, 13, 18, 23, 28 and 33 degrees C (one level two groups). The results showed that A. marmorata all died within 10 days at 8 degrees C and most died at 13 degrees C, but survived normally at temperature of >= 18 degrees C. A. bicolor pacifica all died within 9 days at 8 degrees C and 20 days at 13 degrees C, and partly died at 18 degrees C and 23 degrees C, but survived normally at temperature of 28 degrees C and 33 degrees C during experiment. The maximum feeding rates of both species occurred at temperature of 33 degrees C, being 2.23 +/- 0.10 % day(-1) for A. marmorata and 2.41 +/- 0.06 % day(-1) for A. bicolor pacifica. However, the maximum feed conversion rates occurred at 28 degrees C, being 54.79 +/- 7.54 % for A. marmorata and 71.35 +/- 1.85 % for A. bicolor pacifica. The maximum daily weight gains (DWG) of both species, 2.63 +/- 0.12 g day(-1) for A. bicolor pacifica and 1.19 +/- 0.38 g day(-1) for A. marmorata, were also achieved at 28 degrees C with initial and final mean body weights of 5.62 +/- 0.30 g and 11.59 +/- 0.03 g for the former and 4.97 +/- 0.36 g and 7.18 +/- 0.80 g for the latter. The DWG of A. bicolor pacifica was significantly higher (P < 0.05) than A. marmorata at 28 degrees C and 33 degrees C. The specific growth rates of both species were positively correlated to water temperature (P < 0.01). The optimal growth temperature is estimated to be 27.6 degrees C for A. marmorata and 30.1 degrees C for A. bicolor pacifica. We conclude that A. marmorata and A. bicolor pacifica survive and grow better at water temperature of 28-33 degrees C than that of <= 23 degrees C. A. bicolor pacifica are more sensitive to low water temperature (<= 23 degrees C) than A. marmorata, but grow faster. Our results indicate that both species are suitable for commercial aquaculture, however the water temperature should be controlled relative higher. (C) 2013 Elsevier B. V. All rights reserved.
关键词[WOS]: EUROPEAN EEL
语种: 英语
WOS记录号: WOS:000318554600008
ISSN号: 0044-8486
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19640
Appears in Collections:其他_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Minist Educ, Engn Res Ctr Eel Modern Tech Ind, Xiamen 361021, Peoples R China
4.Jimei Univ, Coll Fisheries, Xiamen 361021, Peoples R China

Recommended Citation:
Luo, Mingzhong; Guan, Ruizhang; Li, Zhongqin; Jin, Heng.The effects of water temperature on the survival, feeding, and growth of the juveniles of Anguilla marmorata and A. bicolor pacifica,AQUACULTURE,2013,400():61-64
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