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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; 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; cqhu@scsio.ac.cn
2013
Source PublicationAQUACULTURE RESEARCH
ISSN1355-557X
Volume44Issue:11Pages:1760-1767
AbstractThe 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.
DepartmentLMB
KeywordSalinity Physiological Performance Respiration Excretion o:n Ratio
Subject AreaFisheries
Funding OrganizationThis 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). ; 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). ; 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). ; 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).
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Language英语
Funding OrganizationThis 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). ; 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). ; 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). ; 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).
WOS IDWOS:000325543900012
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10982
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorcqhu@scsio.ac.cn
Recommended Citation
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.,Liu, Wenguang] Chinese Acad Sci, South China Sea Inst Oceanol, Chinese Acad Sci LAMB, Guangzhou 510301, Guangdong, Peoples R China.,[Qi, Zhanhui.,...&cqhu@scsio.ac.cn.(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.
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