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Spatial and taxonomic variation in trace element bioaccumulation in two herbivores from a coal combustion waste contaminated stream.
Fletcher, Dean E; Lindell, Angela H; Stillings, Garrett K; Mills, Gary L; Blas, Susan A; Vaun McArthur, J.
Afiliación
  • Fletcher DE; Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA. Electronic address: fletcher@srel.uga.edu.
  • Lindell AH; Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA. Electronic address: lindell@srel.uga.edu.
  • Stillings GK; Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA. Electronic address: garrett.stillings@ky.gov.
  • Mills GL; Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA. Electronic address: gmills@srel.uga.edu.
  • Blas SA; Area Completion Projects, Savannah River Nuclear Solutions, Savannah River Site, Aiken 29808, USA. Electronic address: susan.blas@srs.gov.
  • Vaun McArthur J; Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA. Electronic address: mcarthur@srel.uga.edu.
Ecotoxicol Environ Saf ; 101: 196-204, 2014 Mar.
Article en En | MEDLINE | ID: mdl-24507146
Dissimilarities in habitat use, feeding habits, life histories, and physiology can result in syntopic aquatic taxa of similar trophic position bioaccumulating trace elements in vastly different patterns. We compared bioaccumulation in a clam, Corbicula fluminea and mayfly nymph Maccaffertium modestum from a coal combustion waste contaminated stream. Collection sites differed in distance to contaminant sources, incision, floodplain activity, and sources of flood event water and organic matter. Contaminants variably accumulated in both sediment and biofilm. Bioaccumulation differed between species and sites with C. fluminea accumulating higher concentrations of Hg, Cs, Sr, Se, As, Be, and Cu, but M. modestum higher Pb and V. Stable isotope analyses suggested both spatial and taxonomic differences in resource use with greater variability and overlap between species in the more physically disturbed site. The complex but essential interactions between organismal biology, divergence in resource use, and bioaccumulation as related to stream habitat requires further studies essential to understand impacts of metal pollution on stream systems.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oligoelementos / Contaminantes Químicos del Agua / Ríos / Corbicula / Insectos Límite: Animals Idioma: En Revista: Ecotoxicol Environ Saf Año: 2014 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oligoelementos / Contaminantes Químicos del Agua / Ríos / Corbicula / Insectos Límite: Animals Idioma: En Revista: Ecotoxicol Environ Saf Año: 2014 Tipo del documento: Article Pais de publicación: Países Bajos