气候变化领域集成服务门户(CCPortal): Trophic transfer of pollutants within two intertidal rocky shore ecosystems in different biogeographic regions of South Africa

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DOI	10.1016/j.marpolbul.2020.111309
	Trophic transfer of pollutants within two intertidal rocky shore ecosystems in different biogeographic regions of South Africa
	Erasmus A.; Ikenaka Y.; Nakayama S.M.M.; Ishizuka M.; Smit N.J.; Wepener V.
发表日期	2020
ISSN	0025326X
卷号	157
英文摘要	Tsitsikamma and Sheffield Beach are two relatively pristine sites along the South African east coast representing warm temperate and subtropical biogeographic rocky shore intertidal ecosystems, respectively. Stable isotopes (δ15N and δ13C), metals and organochlorine pesticides (OCPs) were measured in 38 intertidal components to study biomagnification or biodilution of metals and OCPs in these marine food webs. Comparison of the four species common to both sites revealed that the highest Al, Fe and OCP concentrations were measured in intertidal organisms from Sheffield Beach and was attributed to diffuse input into the nearshore marine environment sources via estuaries and groundwater. All other metals were higher in intertidal organisms from Tsitsikamma and were attributed to the metal-rich phytoplankton blooms during upwelling events. There was no correlation between metal and OCP accumulation and dietary source (δ13C) or trophic level (δ15N). The application of trophic magnification factors (TMFs) using a relatively short benthic food chain indicated biomagnification for As, Cd, Cu, Se and Zn and biodilution of OCPs at both sites. Since these food chains represent only a small portion of the intertidal ecosystems we found limited evidence of biomagnification or biodilution of metals and OCPs across species. This was attributed to different dietary sources in the same food web and similar trophic levels being occupied by the same species in different food chains. We found that food web composition rather than temperature-based biogeographical distribution influenced trophic transfer of metals and OCPs. © 2020 Elsevier Ltd
英文关键词	Biomagnification; Fish; Invertebrates; Marine; Metals; Organochlorine pesticides; Stable isotopes; Tropical
语种	英语
scopus关键词	Aluminum compounds; Beaches; Chemical contamination; Groundwater; Metals; Biogeographic regions; Biomagnification; Intertidal rocky shores; Marine environment; Organochlorine pesticides; Phytoplankton bloom; Trophic magnifications; Trophic transfer; Ecosystems; aluminum; arsenic; cadmium; carbon 13; copper; ground water; iron; nitrogen 15; organochlorine pesticide; selenium; zinc; bioaccumulation; biogeography; food chain; food web; metal; nearshore environment; organochlorine pesticide; pollutant transport; rocky shore; stable isotope; algal bloom; Article; benthos; biogeography; concentration (parameter); controlled study; correlation analysis; diet; ecosystem; environmental factor; estuary; food chain; food composition; food web; intertidal rocky shore ecosystem; marine environment; marine food web; nonhuman; phytoplankton; pollution transport; seashore; South Africa; species difference; temperature; trophic magnification factor; ecosystem; environmental monitoring; fish; pollutant; South Africa; water pollutant; South Africa; Tsitsikamma; Invertebrata; Ecosystem; Environmental Monitoring; Environmental Pollutants; Fishes; Food Chain; South Africa; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148837
作者单位	Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa; Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
推荐引用方式 GB/T 7714	Erasmus A.,Ikenaka Y.,Nakayama S.M.M.,et al. Trophic transfer of pollutants within two intertidal rocky shore ecosystems in different biogeographic regions of South Africa[J],2020,157.
APA	Erasmus A.,Ikenaka Y.,Nakayama S.M.M.,Ishizuka M.,Smit N.J.,&Wepener V..(2020).Trophic transfer of pollutants within two intertidal rocky shore ecosystems in different biogeographic regions of South Africa.Marine Pollution Bulletin,157.
MLA	Erasmus A.,et al."Trophic transfer of pollutants within two intertidal rocky shore ecosystems in different biogeographic regions of South Africa".Marine Pollution Bulletin 157(2020).