DOI: 10.1016/j.marpolbul.2015.10.004
Scopus记录号: 2-s2.0-84952299928
论文题名: Polycyclic aromatic hydrocarbons alter the structure of oceanic and oligotrophic microbial food webs
作者: Cerezo M.I. ; Agusti S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 101, 期: 2 起始页码: 726
结束页码: 735
语种: 英语
英文关键词: Grazing
; Microbial food webs
; Oceanic communities
; PAHs
; Phytoplankton growth
Scopus关键词: Aromatic compounds
; Aromatic hydrocarbons
; Atmospheric movements
; Chemical contamination
; Ecology
; Food microbiology
; Hydrocarbons
; Organic pollutants
; Phytoplankton
; Pollution
; Activity structure
; Atmospheric transport
; Cascading effects
; Grazing
; Microbial food web
; Oceanic regions
; Phytoplankton growth
; Polycyclic aromatic hydrocarbon (PAH)
; Polycyclic aromatic hydrocarbons
; anthracene
; benzo[a]fluoranthene
; benzo[b]fluoranthene
; benz[a]anthracene
; chlorophyll a
; chrysene
; fluorene
; phenanthrene
; polycyclic aromatic hydrocarbon
; pyrene
; sea water
; unclassified drug
; polycyclic aromatic hydrocarbon
; water pollutant
; food web
; grazing
; growth rate
; PAH
; phytoplankton
; pollution effect
; Article
; controlled study
; dilution
; food web
; grazing
; growth rate
; microbial food web
; nonhuman
; oceanic regions
; phytoplankton
; Prochlorococcus
; Synechococcus
; water pollution
; water sampling
; analysis
; Atlantic Ocean
; drug effects
; food chain
; growth, development and aging
; herbivory
; Indian Ocean
; microbiology
; Pacific Ocean
; toxicity
; water pollutant
; Atlantic Ocean
; Indian Ocean
; Pacific Ocean
; Prochlorococcus
; Atlantic Ocean
; Food Chain
; Herbivory
; Indian Ocean
; Pacific Ocean
; Phytoplankton
; Polycyclic Hydrocarbons, Aromatic
; Prochlorococcus
; Water Microbiology
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: One way organic pollutants reach remote oceanic regions is by atmospheric transport. During the Malaspina-2010 expedition, across the Atlantic, Indian, and Pacific Oceans, we analyzed the polycyclic aromatic hydrocarbon (PAH) effects on oceanic microbial food webs. We performed perturbation experiments adding PAHs to classic dilution experiments. The phytoplankton growth rates were reduced by more than 5 times, being Prochlorococcus spp. the most affected. 62% of the experiments showed a reduction in the grazing rates due to the presence of PAHs. For the remaining experiments, grazing usually increased likely due to cascading effects. We identified changes in the slope of the relation between the growth rate and the dilution fraction induced by the pollutants, moving from no grazing to V-shape, or to negative slope, indicative of grazing increase by cascade effects and alterations of the grazers' activity structure. Our perturbation experiments indicate that PAHs could influence the structure oceanic food-webs structure. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86538
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Department of Global Change Research, IMEDEA (CSIC-UIB), Instituto Mediterráneo de Estudios Avanzados, Miquel Marqués 21, Esporles, Spain; Red Sea Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
Recommended Citation:
Cerezo M.I.,Agusti S.. Polycyclic aromatic hydrocarbons alter the structure of oceanic and oligotrophic microbial food webs[J]. Marine Pollution Bulletin,2015-01-01,101(2)