Bioaccumulation of polychlorinated biphenyls in mullet fish in a former ship dismantling harbour, a contaminated estuary, and nearby coastal fish farms
Journal
Marine Pollution Bulletin
Journal Volume
51
Journal Issue
8-12
Pages
932-939
Date Issued
2005
Abstract
This study investigated the bioaccumulation of polychlorinated biphenyls (PCBs) toward mullet fish (Liza macrolepis) living in former PCB contaminated areas, the Ann-Ping harbour and the Er-Jen estuary, and fish farms located near the above two areas in 2003. The PCB body burdens of collected fish samples are proportional to the contamination level of their locations with the following rank order (greatest to least) from the Er-Jen estuary, the Ann-Ping harbour to the fish farms. Concentration of PCBs of the estuarine mullet has been approximately decreased to one-half of the peak concentration of the 1990s. Although the concentration of PCBs in farmed fish inhabiting near the two contaminated areas was greater than the average of those of fish from local fish markets in Taiwan, no particularly great contamination level was observed in their bodies. Using the less chlorinated PCB fraction (triCB + tetraCB)/total PCBs as the indicator of the origins of PCBs, fish near former contaminated areas had greater body burdens of the more chlorinated PCB congeners, while the farmed fish exhibited a PCB pattern more like that known to originate from air-water exchange with less chlorinated PCBs predominating. Although the PCB contamination has been stopped for a decade, the residual contaminants, supposedly existing in soil and sediments, still contribute to the body burden of fish residing in the estuary and the harbour. © 2005 Elsevier Ltd. All rights reserved.
Subjects
Ann-Ping harbour; Er-Jen estuary; Fish farm; Liza macrolepis; PCBs
SDGs
Other Subjects
Contamination; Estuaries; Impurities; Ocean habitats; Polychlorinated biphenyls; Ports and harbors; Sediments; Soils; Ann-Ping harbor; Bioaccumulation; Er-Jen estuary; Fish farm; Liza macrolepis; Marine pollution; butyltin; polychlorinated biphenyl; sea water; water; bioaccumulation; estuarine environment; fish; marine pollution; PCB; pollutant source; aquaculture; bioaccumulation; chemical analysis; chlorination; concentration (parameters); conference paper; ecology; estuary; fish; industry; invertebrate; Japan; marine environment; nonhuman; soil; survival rate; Taiwan; water contamination; water pollution; Animals; Aquaculture; Chromatography, Gas; Environmental Monitoring; Fishes; Geography; Lipids; Metallurgy; Polychlorinated Biphenyls; Seasons; Seawater; Smegmamorpha; Taiwan; Water Pollutants, Chemical; Asia; Eurasia; Far East; Taiwan; Chelon macrolepis; Invertebrata
Type
journal article