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题名: Metabolic characteristics of sea cucumber Apostichopus japonicus (Selenka) during aestivation
作者: Yang, HongSheng(杨红生); Zhou, Yi(周毅); Zhang, Tao(张涛); Yuan, XT; Li, XX; Liu, Ying(刘鹰); Zhang, FS
刊名: JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
出版日期: 2006-03-21
卷号: 330, 期号:2, 页码:505-510
关键词: SONORAN MUD TURTLE ; KINOSTERNON-SONORIENSE ; OXYGEN-CONSUMPTION ; TEMPERATURE ; TOAD ; FROG
学科分类: Ecology; Marine & Freshwater Biology
DOI: 10.1016/j.jembe.2005.09.010
文章类型: Article
英文摘要: Metabolic characteristics of the sea cucumber Aposticholpus japonicus (Selenka) during aestivation were studied in the laboratory. The effects of water temperature on oxygen consumption rate (OCR) and ammonia-N excretion rate (AER) in A. japonicus were determined by the Winkler and Hypobromite methods, respectively. Mature (large, 148.5 +/- 15.4 g, medium 69.3 +/- 6.9 g) and immature (small, 21.2 +/- 4.7 g) individuals aestivated at water temperatures of 20 and 25 degrees C, respectively. The metabolic characteristics of mature individuals were different from immature individuals during this period. The OCR of mature sea cucumbers peaked at 20 degrees C, and then dropped significantly at higher temperatures, whereas the OCR of the immature animals continued to increase slightly, even beyond the aestivation temperature. The AER of mature individuals peaked at 20 T, while that of the immature animals peaked at 25 degrees C. The relationships between dry weight (DW) and absolute oxygen consumption (R) and absolute ammonia-N excretion (N) could be described by the regression equation R or N=aW(b). With the exception of 15 degrees C, the O/N ratios (calculated in atomic equivalents) of large size sea cucumbers was close to 20 across the temperatures used in this study, indicating that their energy Source was a combination of lipid and protein. Oil the other hand, apart from small individuals maintained at 10 degrees C, the O/N ratios of the medium and small sea Cucumbers were close to 10, indicating that protein was their major energy source. The O/N ratios in all size groups remained unchanged after aestivation was initiated. (c) 2005 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000236627300007
中文摘要: Metabolic characteristics of the sea cucumber Aposticholpus japonicus (Selenka) during aestivation were studied in the laboratory. The effects of water temperature on oxygen consumption rate (OCR) and ammonia-N excretion rate (AER) in A. japonicus were determined by the Winkler and Hypobromite methods, respectively. Mature (large, 148.5 +/- 15.4 g, medium 69.3 +/- 6.9 g) and immature (small, 21.2 +/- 4.7 g) individuals aestivated at water temperatures of 20 and 25 degrees C, respectively. The metabolic characteristics of mature individuals were different from immature individuals during this period. The OCR of mature sea cucumbers peaked at 20 degrees C, and then dropped significantly at higher temperatures, whereas the OCR of the immature animals continued to increase slightly, even beyond the aestivation temperature. The AER of mature individuals peaked at 20 T, while that of the immature animals peaked at 25 degrees C. The relationships between dry weight (DW) and absolute oxygen consumption (R) and absolute ammonia-N excretion (N) could be described by the regression equation R or N=aW(b). With the exception of 15 degrees C, the O/N ratios (calculated in atomic equivalents) of large size sea cucumbers was close to 20 across the temperatures used in this study, indicating that their energy Source was a combination of lipid and protein. Oil the other hand, apart from small individuals maintained at 10 degrees C, the O/N ratios of the medium and small sea Cucumbers were close to 10, indicating that protein was their major energy source. The O/N ratios in all size groups remained unchanged after aestivation was initiated. (c) 2005 Elsevier B.V. All rights reserved.
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内容类型: 期刊论文
URI标识: http://ir.qdio.ac.cn/handle/337002/5483
Appears in Collections:海洋生物技术研发中心_期刊论文
海洋生态与环境科学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.S Australian Res & Dev Inst, S Australian Aquat Sci Ctr, W Beach, SA 5024, Australia

Recommended Citation:
Yang, HS; Zhou, Y; Zhang, T; Yuan, XT; Li, XX; Liu, Y; Zhang, FS.Metabolic characteristics of sea cucumber Apostichopus japonicus (Selenka) during aestivation,JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,2006,330(2):505-510
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