DOI: 10.1016/j.marpolbul.2015.10.016
Scopus记录号: 2-s2.0-84974539639
论文题名: Mercury and selenium in seston, marine plankton and fish (Sardinella brasiliensis) as a tool for understanding a tropical food web
作者: Seixas T.G. ; Moreira I. ; Kehrig H.A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 101, 期: 1 起始页码: 366
结束页码: 369
语种: 英语
英文关键词: Autotrophic organism
; Biomagnification process
; Heterotrophic organism
; Microbial loop
; Oligotrophic ecosystem
; Trophic transfer
Scopus关键词: Biology
; Chemical contamination
; Ecology
; Fish
; Marine biology
; Mercury (metal)
; Plankton
; Selenium
; Autotrophic organism
; Biomagnification
; Heterotrophic organism
; Microbial loop
; Oligotrophic ecosystems
; Trophic transfer
; Meats
; mercury
; selenium
; mercury
; selenium
; water pollutant
; fish
; food web
; mercury (element)
; microbial loop
; oligotrophic environment
; plankton
; selenium
; seston
; trophic level
; Article
; bay
; Brazil
; concentration (parameters)
; fish
; food web
; macroplankton
; microplankton
; nonhuman
; pH
; plankton
; salinity
; Sardinella brasiliensis
; seashore
; analysis
; animal
; chemistry
; environmental monitoring
; fish
; food chain
; metabolism
; pharmacokinetics
; plankton
; procedures
; tropic climate
; water pollutant
; Brazil
; Sardinella janeiro
; Animals
; Brazil
; Environmental Monitoring
; Fishes
; Food Chain
; Mercury
; Plankton
; Selenium
; Tropical Climate
; 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: Mercury (Hg) and selenium (Se) concentrations were evaluated in a planktivorous fish and four size classes of organisms (FSCO), collected at an oligotrophic bay in the Southeastern Brazilian coast. No significant spatial differences between Hg and Se were found in the FSCO within the five sampling points in the bay. Hg and Se concentrations increased with successive increases in the size class of the analyzed plankton, i.e. approximately 3-and 2-fold, respectively, from microplankton to macroplankton. Hg and Se biomagnified throughout the planktonic food web. The smallest size class of organism, seston, composed of both biotic and abiotic portions, and fish showed the highest Hg concentrations. This indicates that Hg is not biomagnifying in the base of the bay food web. Selenium concentrations in fish were approximately 5.9 times higher than those in seston. Hg and Se concentrations in fish were approximately 3.5 and 14.6 times higher than those found in the plankton, respectively. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86493
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: Dep. de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil; Lab. de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
Recommended Citation:
Seixas T.G.,Moreira I.,Kehrig H.A.. Mercury and selenium in seston, marine plankton and fish (Sardinella brasiliensis) as a tool for understanding a tropical food web[J]. Marine Pollution Bulletin,2015-01-01,101(1)