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Effect of stocking density on growth, settlement and survival of clam larvae, Meretrix meretrix
Liu, Baozhong; Dong, Bo; Tang, Baojun; Zhang, Tao; Xiang, Jianhai
2006-08-31
发表期刊AQUACULTURE
ISSN0044-8486
卷号258期号:1-4页码:344-349
文章类型Article
摘要To determine the optimal larval density for hatchery culture of the clam Meretrix meretrix, experiments with stocking densities of 5, 10, 20, 40 and 60 larvae ml(-1) were designed, which included the developmental stages from D-veliger to 8 days postsettlement. Shell length, settlement time and survival rate of the larvae were recorded. Results showed that, at each sampling time, larvae reared at the highest density had the smallest mean size, whereas larvae reared at the lowest density had the largest mean size. Statistical differences in mean shell length at different stocking densities appeared from day 2, and greater differences occurred with increased culture time. Specific growth rate (SGR) in the rapid growing stage (day 0-3) was negatively correlated with density; however, no correlation was found between SGR and density in the slow growing stage (days 3-7). Settlement time was prolonged and shell length of settled larvae decreased as density increased. However, larval survival rate (74.8-79.1%) was independent of stocking density. Results showed that a high stocking density, in the designated range, is feasible for larval culture of the clam M. meretrix. However, for large-scale culture, in the interest of costs and safety, a stocking density of 10-20 larvae ml(-1) is recommended. (c) 2006 Elsevier B.V. All rights reserved.; To determine the optimal larval density for hatchery culture of the clam Meretrix meretrix, experiments with stocking densities of 5, 10, 20, 40 and 60 larvae ml(-1) were designed, which included the developmental stages from D-veliger to 8 days postsettlement. Shell length, settlement time and survival rate of the larvae were recorded. Results showed that, at each sampling time, larvae reared at the highest density had the smallest mean size, whereas larvae reared at the lowest density had the largest mean size. Statistical differences in mean shell length at different stocking densities appeared from day 2, and greater differences occurred with increased culture time. Specific growth rate (SGR) in the rapid growing stage (day 0-3) was negatively correlated with density; however, no correlation was found between SGR and density in the slow growing stage (days 3-7). Settlement time was prolonged and shell length of settled larvae decreased as density increased. However, larval survival rate (74.8-79.1%) was independent of stocking density. Results showed that a high stocking density, in the designated range, is feasible for larval culture of the clam M. meretrix. However, for large-scale culture, in the interest of costs and safety, a stocking density of 10-20 larvae ml(-1) is recommended. (c) 2006 Elsevier B.V. All rights reserved.
关键词Meretrix Meretrix Larvae Stocking Density Growth Settlement And Survival
学科领域Fisheries ; Marine & Freshwater Biology
DOI10.1016/j.aquaculture.2006.03.047
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收录类别SCI
语种英语
WOS记录号WOS:000240252900038
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被引频次:105[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/5866
专题实验海洋生物学重点实验室
海洋生态与环境科学重点实验室
作者单位Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
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GB/T 7714
Liu, Baozhong,Dong, Bo,Tang, Baojun,et al. Effect of stocking density on growth, settlement and survival of clam larvae, Meretrix meretrix[J]. AQUACULTURE,2006,258(1-4):344-349.
APA Liu, Baozhong,Dong, Bo,Tang, Baojun,Zhang, Tao,&Xiang, Jianhai.(2006).Effect of stocking density on growth, settlement and survival of clam larvae, Meretrix meretrix.AQUACULTURE,258(1-4),344-349.
MLA Liu, Baozhong,et al."Effect of stocking density on growth, settlement and survival of clam larvae, Meretrix meretrix".AQUACULTURE 258.1-4(2006):344-349.
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