MICROBIAL FOOD WEBS AND THE EXPORT OF BIOGENIC CARBON IN OCEANS

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	MICROBIAL FOOD WEBS AND THE EXPORT OF BIOGENIC CARBON IN OCEANS
	LEGENDRE, L ; LEFEVRE, J
刊名	AQUATIC MICROBIAL ECOLOGY
	1995
卷号	9 期号:1 页码:69-77
关键词	MICROORGANISMS PLANKTON BACTERIA FOOD WEB CARBON FLUX
ISSN号	0948-3055
英文摘要	Microbial food webs, which comprise phototrophic picoplankton (or ultraplankton), heterotrophic bacteria and protozoa, are ubiquitous in marine waters. Members of the microbial food web may play various roles in the export of biogenic carbon. For example, it has been postulated that high bacterial activity may sometimes prevent a significant fraction of the production by large phytoplankton from reaching metazoan consumers. Phototrophic or heterotrophic small plankton cells may be readily exported (i.e. biological CO2 pump) if incorporated into large particles, through either endosymbiosis with larger cells, or development on material accumulated in hydrodynamic traps, or inclusion into marine snow, or grazing by large planktonic microphages (e.g. salps) and incorporation in their sometimes fast-sinking faecal pellets. Another aspect is the export of carbonate by members of the microbial food web (e.g. coccolithophores, foraminifera), which influences the carbon dioxide balance of the ocean (i.e. carbonate pump). Finally, carbon bound into refractory dissolved organic matter is chemically sequestered in the upper ocean, before being exported to depth. The activity of microbial food webs may therefore influence in several ways the export (and sequestration) of biogenic carbon in oceans.
学科主题	Environmental Sciences & Ecology; Marine & Freshwater Biology; Microbiology
原文出处	INTER-RESEARCH
语种	英语
公开日期	2012-02-13
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/9318]
专题	南海海洋研究所_海洋微食物网高被引文献
推荐引用方式 GB/T 7714	LEGENDRE, L,LEFEVRE, J. MICROBIAL FOOD WEBS AND THE EXPORT OF BIOGENIC CARBON IN OCEANS[J]. AQUATIC MICROBIAL ECOLOGY,1995,9(1):69-77.
APA	LEGENDRE, L,&LEFEVRE, J.(1995).MICROBIAL FOOD WEBS AND THE EXPORT OF BIOGENIC CARBON IN OCEANS.AQUATIC MICROBIAL ECOLOGY,9(1),69-77.
MLA	LEGENDRE, L,et al."MICROBIAL FOOD WEBS AND THE EXPORT OF BIOGENIC CARBON IN OCEANS".AQUATIC MICROBIAL ECOLOGY 9.1(1995):69-77.