Effects of salinity on ingestion, oxygen consumption and ammonium excretion rates of the sea cucumber Holothuria leucospilota

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Effects of salinity on ingestion, oxygen consumption and ammonium excretion rates of the sea cucumber Holothuria leucospilota
	[Yu, Zonghe ; Hu, Chaoqun ; Liu, Wenguang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Appl Marine Biol Guangdong Prov, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China ; [Yu, Zonghe ; Hu, Chaoqun ; Liu, Wenguang] Chinese Acad Sci, South China Sea Inst Oceanol, Chinese Acad Sci LAMB, Guangzhou 510301, Guangdong, Peoples R China ; [Qi, Zhanhui ; Huang, Honghui] Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
刊名	AQUACULTURE RESEARCH
	2013
卷号	44 期号:11 页码:1760-1767
关键词	salinity physiological performance respiration excretion O:N ratio
ISSN号	1355-557X
通讯作者	cqhu@scsio.ac.cn
中文摘要	The sea cucumber Holothuria leucospilota is a good candidate for aquaculture, for large-scale production of this sea cucumber, it is imperative to know the effects of salinity on its physiological performance. In this study, ingestion, oxygen consumption and ammonium excretion rates of the adult sea cucumber H.leucospilota (16.98 +/- 1.14g, wet weight) at various salinity levels (18, 23, 28, 33 and 38PSU) were studied in the laboratory. The species were acclimated for 1week at the desired salinity before testing, and were fed with sediment from their natural habitat during this period. Results showed that the minimum ingestion rate (0.02 +/- 0.01gg(-1)d(-1)) at a salinity of 18PSU was significantly lower than those observed at salinities of 28, 33 and 38PSU, and there was no significant difference among the values at 23, 28, 33 and 38PSU. The maximum value of oxygen consumption rate recorded at a salinity of 28PSU was significantly higher than the minimum at 18PSU, no significant differences were observed among other treatments. The ammonium excretion rates of H. leucospilota also changed significantly in response to salinity variations, the maximum value observed at a salinity of 28PSU (0.09 +/- 0.03Mg(-1)h(-1)) being nearly five times higher than the minimum value at a salinity of 38PSU (0.02 +/- 0.01Mg(-1)h(-1)). The O:N ratio varied as a function of salinity. Lower O:N ratios (<11.0) at salinities below 23PSU indicated protein-dominated catabolism under hyposaline stress; the higher O:N ratio (46.5) at a salinity of 38PSU indicated carbon-based metabolism. Results of this study indicated that the sea cucumber H. leucospilota may have a wide tolerance of salinity variation. However, it is not a very suitable species for rearing in hyposaline water. This study provides useful information for improving aquaculture management in tropical and subtropical coastal areas.
学科主题	Fisheries
资助信息	This research was supported by the Key Projects in the National Science & Technology Pillar Program (2011BAD13B02), the Knowledge Innovation Key Projects of CAS (KZCX2-YW-Q07-03) and Open Project Program of Key Laboratory of Fishery Ecology Environment, Guangdong Province (LFE-2010-12).
原文出处	WILEY-BLACKWELL
语种	英语
WOS记录号	WOS:000325543900012
公开日期	2015-01-22
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10982]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	[Yu, Zonghe,Hu, Chaoqun,Liu, Wenguang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Appl Marine Biol Guangdong Prov, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China,et al. Effects of salinity on ingestion, oxygen consumption and ammonium excretion rates of the sea cucumber Holothuria leucospilota[J]. AQUACULTURE RESEARCH,2013,44(11):1760-1767.
APA	[Yu, Zonghe.,Hu, Chaoqun.,Liu, Wenguang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Appl Marine Biol Guangdong Prov, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China.,[Yu, Zonghe.,Hu, Chaoqun.,...&Huang, Honghui] Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China.(2013).Effects of salinity on ingestion, oxygen consumption and ammonium excretion rates of the sea cucumber Holothuria leucospilota.AQUACULTURE RESEARCH,44(11),1760-1767.
MLA	[Yu, Zonghe,et al."Effects of salinity on ingestion, oxygen consumption and ammonium excretion rates of the sea cucumber Holothuria leucospilota".AQUACULTURE RESEARCH 44.11(2013):1760-1767.