Diel isotopic fluctuation in surface seston and its physiological and ecological implications

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	Diel isotopic fluctuation in surface seston and its physiological and ecological implications
	Xu, J.; Xie, P.; Qin, J.
刊名	ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY
	2008
卷号	44 期号:3 页码:197-201
关键词	stable isotope diel phytoplankton oligotrophic eutrophic lake
ISSN号	0003-4088
通讯作者	Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
中文摘要	We reported diet fluctuation in isotopic composition of surface seston from two connected lakes in China, oligotrophic Lake Fuxian and eutrophic Lake Xingyun. The decrease in nighttime and the increase in daytime of isotope signatures of seston might be attributed to the light-dependent balance between the photosynthesis and the respiration of phytoplankton and to the changes in the species composition and the relative abundance of phytoplankton functional groups at the water's surface in diel growth. The relatively high isotopic signatures and the large-extent diel fluctuation of phytoplankton in the eutrophic lake could be due to utilization of heavy-isotope-enriched inorganic sources and the high primary productivity. Extent of diel fluctuation in delta C-13 and delta N-15 of phytoplankton were relatively small compared with the isotopic enrichment per trophic transfer and thus might have negligible effect on the source identification and the trophic evaluation of consumers.
英文摘要	We reported diet fluctuation in isotopic composition of surface seston from two connected lakes in China, oligotrophic Lake Fuxian and eutrophic Lake Xingyun. The decrease in nighttime and the increase in daytime of isotope signatures of seston might be attributed to the light-dependent balance between the photosynthesis and the respiration of phytoplankton and to the changes in the species composition and the relative abundance of phytoplankton functional groups at the water's surface in diel growth. The relatively high isotopic signatures and the large-extent diel fluctuation of phytoplankton in the eutrophic lake could be due to utilization of heavy-isotope-enriched inorganic sources and the high primary productivity. Extent of diel fluctuation in delta(13)C and delta(15)N of phytoplankton were relatively small compared with the isotopic enrichment per trophic transfer and thus might have negligible effect on the source identification and the trophic evaluation of consumers.
学科主题	Limnology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Limnology
研究领域[WOS]	Marine & Freshwater Biology
关键词[WOS]	PARTICULATE ORGANIC-MATTER ; PELAGIC FOOD WEBS ; EUTROPHIC LAKE ; STABLE CARBON ; SEASONAL-VARIATIONS ; VERTICAL-DISTRIBUTION ; PHYTOPLANKTON ; ZOOPLANKTON ; DELTA-N-15 ; NITROGEN
收录类别	SCI
资助信息	Chinese Academy of Sciences [KZCX1-SW-13]
语种	英语
WOS记录号	WOS:000259736500004
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/7996]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Xu, J.,Xie, P.,Qin, J.. Diel isotopic fluctuation in surface seston and its physiological and ecological implications[J]. ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY,2008,44(3):197-201.
APA	Xu, J.,Xie, P.,&Qin, J..(2008).Diel isotopic fluctuation in surface seston and its physiological and ecological implications.ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY,44(3),197-201.
MLA	Xu, J.,et al."Diel isotopic fluctuation in surface seston and its physiological and ecological implications".ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY 44.3(2008):197-201.