作者
Rebecca A Efroymson, Mark J Peterson, R Trent Jett, Natalie A Griffiths, Evin T Carter, Allison M Fortner, Christopher R DeRolph, Peijia Ku, Paul G Matson, Rachel M Pilla, Teresa J Mathews
发表日期
2024/1/5
期刊
Journal of Hazardous Materials
卷号
461
页码范围
132587
出版商
Elsevier
简介
The fish and plant communities in a pond contaminated with polychlorinated biphenyls (PCBs) in East Tennessee, USA, were manipulated to reduce ecological and human-health risk associated with exposure to the chemical contaminants. We evaluated the success of the remedial action using a habitat valuation approach, as well as measuring PCB concentrations in fish. Risk reduction objectives included: alter the fish community to favor fish that do not resuspend, bioaccumulate, or biomagnify PCBs; stabilize contaminated sediments to improve water quality; and stabilize shoreline soils and enhance riparian habitat. Fish targeted for removal included gizzard shad, largemouth bass, and nonnative carp. Reduced PCB concentrations in fish have characterized the new bluegill-dominated community, although a weir-overtopping event led to the need for additional removals of gizzard shad and largemouth bass …
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