Journal article
Polychlorinated Biphenyls in Sediment and Biota from the Delaware River Estuary
Proceedings of the Academy of Natural Sciences of Philadelphia, v 158(1)
Apr 2009
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A spatially comprehensive evaluation of poly chlorinated biphenyl (PCB) inventories in white perch, channel catfish, small prey fish, amphipods and sediment within four zones of the Delaware River Estuary was completed during two seasons (fall 2001 and spring 2002). Highest sediment PCB concentrations occurred adjacent to urbanized and industrialized stretches of the estuary. Whole organism t-PCB body burdens (on a wet weight basis) reflected the spatial distributions in sediment PCB concentrations. However, there was considerable variation in PCB concentrations among individual catfish and perch fillets within zones that were not significantly reduced by lipid normalization. This variation suggests that within a zone many factors (e.g., dietary shifts, small-scale heterogeneity in sediment contamination, and non-equilibrium conditions in contaminant partitioning) drive PCB bioaccumulation. With increasing down-estuary distances, all biota except for perch had enhanced concentrations of more chlorinated congeners, especially nona- and deca-chlorinated biphenyls. Specific congeners such as PCB 206 and 209 may act as indicators of unique local sources of contamination within the lower portions of the Delaware River Estuary.
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Details
- Title
- Polychlorinated Biphenyls in Sediment and Biota from the Delaware River Estuary
- Creators
- Jeffrey T.F Ashley - Academy of Natural Sciences of Drexel UniversityMegan L Webster - Chesapeake Biological LaboratoryRichard J Horwitz - Academy of Natural Sciences of Drexel UniversityDavid J Velinsky - Drexel UniversityJoel E Baker - Center for Urban Waters
- Publication Details
- Proceedings of the Academy of Natural Sciences of Philadelphia, v 158(1)
- Publisher
- Academy of Natural Sciences of Philadelphia
- Number of pages
- 17
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES)
- Web of Science ID
- WOS:000265344600005
- Other Identifier
- 991019169012004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Biodiversity Conservation
- Ecology