Effects of rearing temperature and density on growth, survival and development of sea cucumber larvae, Apostichopus japonicus (Selenka)

doi:10.1007/s00343-010-9092-4

	Effects of rearing temperature and density on growth, survival and development of sea cucumber larvae, Apostichopus japonicus (Selenka)
	Liu Guangbin 1,2; Yang Hongsheng1 ; Liu Shilin 1
	2010-07-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	28 期号:4 页码:842-848
文章类型	Article
摘要	In laboratory conditions, effects of rearing temperature and stocking density were examined on hatching of fertilized egg and growth of auricularia larvae of Apostichopus japonicus respectively. Data series like larval length and density, metamorphic time, and survival rate of the larvae were recorded. Statistics showed that for A. japonicus, survival rate (from fertilized egg to late auricularia) decreased significantly with the increasing rearing temperature (P < 0.05). At different temperatures SGR was statistically significant as well (P < 0.05) from day 1, and maximal SGR was found on day 9 at 24A degrees C (159.26 +/- 3.28). This study clearly indicated that at low temperature (< 24A degrees C), metamorphic rate was remarkably higher than at higher temperature (> 26A degrees C). Hatching rate was significantly different between 0.2-5 ind./ml groups and 20-50 ind./ml groups. Rearing larvae at the higher density had the smaller maximal-length, whereas needed longer time to complete metamorphosis. This study suggested that 21A degrees C and 0.4 ind./ml can be used as the most suitable rearing temperature and stocking density for large -scale artificial breeding of A. japonicus's larvae.; In laboratory conditions, effects of rearing temperature and stocking density were examined on hatching of fertilized egg and growth of auricularia larvae of Apostichopus japonicus respectively. Data series like larval length and density, metamorphic time, and survival rate of the larvae were recorded. Statistics showed that for A. japonicus, survival rate (from fertilized egg to late auricularia) decreased significantly with the increasing rearing temperature (P < 0.05). At different temperatures SGR was statistically significant as well (P < 0.05) from day 1, and maximal SGR was found on day 9 at 24A degrees C (159.26 +/- 3.28). This study clearly indicated that at low temperature (< 24A degrees C), metamorphic rate was remarkably higher than at higher temperature (> 26A degrees C). Hatching rate was significantly different between 0.2-5 ind./ml groups and 20-50 ind./ml groups. Rearing larvae at the higher density had the smaller maximal-length, whereas needed longer time to complete metamorphosis. This study suggested that 21A degrees C and 0.4 ind./ml can be used as the most suitable rearing temperature and stocking density for large -scale artificial breeding of A. japonicus's larvae.
关键词	Apostichopus Japonicus Egg Hatch Larvae Growth Metamorphism
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-010-9092-4
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000279294400019
引用统计	被引频次：13[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/337002/5418
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Liu Guangbin,Yang Hongsheng,Liu Shilin. Effects of rearing temperature and density on growth, survival and development of sea cucumber larvae, Apostichopus japonicus (Selenka)[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(4):842-848.
APA	Liu Guangbin,Yang Hongsheng,&Liu Shilin.(2010).Effects of rearing temperature and density on growth, survival and development of sea cucumber larvae, Apostichopus japonicus (Selenka).CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,28(4),842-848.
MLA	Liu Guangbin,et al."Effects of rearing temperature and density on growth, survival and development of sea cucumber larvae, Apostichopus japonicus (Selenka)".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 28.4(2010):842-848.

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