Effect of the water-soluble fraction of diesel oil on bacterial and primary production and the trophic transfer to mesozooplankton through a microbial food web in Yangtze estuary, China

doi:10.1016/j.ecss.2006.08.008

	Effect of the water-soluble fraction of diesel oil on bacterial and primary production and the trophic transfer to mesozooplankton through a microbial food web in Yangtze estuary, China
	Koshikawa, H.; Xu, K. Q.; Liu, Z. L.; Kohata, K.; Kawachi, M.; Maki, H.; Zhu, M. Y.; Watanabe, M.
刊名	ESTUARINE COASTAL AND SHELF SCIENCE
	2007-01
卷号	71 期号:1-2 页码:68-80
关键词	oil pollution bacterial production primary production mesozooplankton microbial food web mesocosm Yangtze estuary
ISSN号	0272-7714
DOI	10.1016/j.ecss.2006.08.008
英文摘要	We studied the influence of the water-soluble fraction (WSF) of diesel fuel oil on bacterial and photosynthetic producers and on carbon transfer to higher trophic organisms in an aquatic plankton ecosystem by means of a mesocosm experiment in the Yangtze estuary, China. In the oil-enriched mesocosm, average bacterial production increased 3.9 times compared with that in the control mesocosm. WSF addition also increased the abundance of bacterivorous heterotrophic nanoflagellates, but it decreased the abundance of other higher trophic organisms (micro- and mesozooplankton) due to the toxic effects of the WSE The amount of carbon transfer from bacterial production to mesozooplankton was of nearly similar magnitude in the oil-enriched and control mesocosms, though bacterial production was much larger in the former. The relative reachable efficiency of bacterial production to mesozooplankton in the oil-enriched mesocosm was only about 36% of that in the control. This lower efficiency in the oil-enriched mesocosm was attributed to decreased mesozooplankton abundance rather than decreased abundance of trophic intermediates in microbial food webs. We found only a slight difference between photosynthetic production in the oil-enriched and control mesocosms. A complementary batch-incubation experiment showed that the WSF may have considerably decreased the photosynthetic activity of an algal assemblage, however, so the photosynthetic production in mesocosms was regulated by nutrient-limitation rather than by the toxic effect of WSE The carbon transfer from photosynthetic production to mesozooplankton in the oil-enriched mesocosm was comparable to that in the control, though WSF addition decreased the abundance of mesozooplankton in the oil-enriched mesocosm. This may have resulted from the occurrence of the diatom Skeletonema costatum, which is much preferred by mesozooplankton (copepods) as prey, in the oil-enriched mesocosm, whereas the dinoflagellate Prorocentrum dentatum was overwhelmingly dominant in the control mesocosm. (c) 2006 Published by Elsevier Ltd.
WOS关键词	CRUDE-OIL ; PHOTOSYNTHETIC PRODUCTION ; PLANKTON COMMUNITY ; MARINE ECOSYSTEM ; METAZOOPLANKTON ; PHYTOPLANKTON ; DYNAMICS ; COPEPODS ; GROWTH ; CARBON
WOS研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
WOS记录号	WOS:000243506100009
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26014]
专题	自然资源部第一海洋研究所
通讯作者	Koshikawa, H.
作者单位	1.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan 2.State Ocean Adm, Inst Oceanog 2, Hangzhou 310012, Peoples R China 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266003, Peoples R China 4.Keio Univ, Grad Sch Media & Governance, Fujisawa, Kanagawa 2528520, Japan
推荐引用方式 GB/T 7714	Koshikawa, H.,Xu, K. Q.,Liu, Z. L.,et al. Effect of the water-soluble fraction of diesel oil on bacterial and primary production and the trophic transfer to mesozooplankton through a microbial food web in Yangtze estuary, China[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2007,71(1-2):68-80.
APA	Koshikawa, H..,Xu, K. Q..,Liu, Z. L..,Kohata, K..,Kawachi, M..,...&Watanabe, M..(2007).Effect of the water-soluble fraction of diesel oil on bacterial and primary production and the trophic transfer to mesozooplankton through a microbial food web in Yangtze estuary, China.ESTUARINE COASTAL AND SHELF SCIENCE,71(1-2),68-80.
MLA	Koshikawa, H.,et al."Effect of the water-soluble fraction of diesel oil on bacterial and primary production and the trophic transfer to mesozooplankton through a microbial food web in Yangtze estuary, China".ESTUARINE COASTAL AND SHELF SCIENCE 71.1-2(2007):68-80.