Effect of stocking density on growth, settlement and survival of clam larvae, Meretrix meretrix

doi:10.1016/j.aquaculture.2006.03.047

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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
刊名	AQUACULTURE
	2006-08-31
卷号	258 期号:1-4 页码:344-349
关键词	Meretrix Meretrix Larvae Stocking Density Growth Settlement And Survival
ISSN号	0044-8486
DOI	10.1016/j.aquaculture.2006.03.047
文献子类	Article
英文摘要	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.
学科主题	Fisheries ; Marine & Freshwater Biology
URL标识	查看原文
语种	英语
WOS记录号	WOS:000240252900038
公开日期	2010-12-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/5867]
专题	海洋研究所_实验海洋生物学重点实验室海洋研究所_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
推荐引用方式 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.