| Uptake, absorption efficiency and elimination of DDT in marine phytoplankton, copepods and fish. | |
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MedLine Citation:
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PMID: 15862399 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Uptake, absorption efficiency and elimination of DDT were measured in marine phytoplankton, copepods (Acartia erythraea) and fish (mangrove snappers Lutjanus argentimaculatus). The uptake rate constant of DDT from water decreased with increasing trophic level. The dietary absorption efficiency (AE) of DDT was 10-29% in copepods and 72-99% in fish. Food concentration did not significantly affect the AEs of DDT, but the AEs varied considerably among the different food diets. The elimination rate constants of DDT by the copepods were comparable following uptake from the diet and from the water. Elimination of DDT from the fish was exceedingly low. Both aqueous and dietary uptake are equally important for DDT accumulation in the copepods. In fish, dissolved exposure is a more significant route than intake from the diet. The predicted trophic transfer factors in the copepods and the fish are consistent with the field measurements in marine zooplankton and fish. |
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Authors:
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Xinhong Wang; Wen-Xiong Wang |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Environmental pollution (Barking, Essex : 1987) Volume: 136 ISSN: 0269-7491 ISO Abbreviation: Environ. Pollut. Publication Date: 2005 Aug |
Date Detail:
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Created Date: 2005-05-02 Completed Date: 2005-09-20 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8804476 Medline TA: Environ Pollut Country: England |
Other Details:
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Languages: eng Pagination: 453-64 Citation Subset: IM |
Affiliation:
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Department of Biology, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biotransformation Copepoda / metabolism* DDT / pharmacokinetics* Diet Fishes / metabolism* Food Chain Intestinal Absorption Pesticides / pharmacokinetics* Phytoplankton / metabolism* Seawater Water Pollutants, Chemical / pharmacokinetics* |
| Chemical | |
Reg. No./Substance:
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0/Pesticides; 0/Water Pollutants, Chemical; 50-29-3/DDT |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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