Interactions of trace metals and different marine food chains
نویسندگان
چکیده
منابع مشابه
Trophic transfer of seven trace metals in a four-step marine food chain
There is increasing recognition of the importance of dietary pathways in determining metal body burdens in marine organisms. With a simple kinetic model that requires information about the ingestion rate of an animal and the assimilation efficiency (AE) and efflux rate constant (ke) of a metal following dietary exposure, it is possible to quantitatively predict the trophic transfer and biomagni...
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In assessing the distributions of trace metals in aquatic environments as a prerequisite to any study of the variation of local toxic metal contamination over space and time, it is tempting to measure dissolved and/or sediment concentrations. A third and preferred alternative, however, is the measurement of accumulated trace metal concentrations in selected organisms, termed biomonitors. Such c...
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This study investigates the interactions between dissolved trace metals and plastic debris under controlled laboratory conditions by using polyethylene pellets as a model plastic particle. Specifically, the study compared virgin pellets sourced from a local moulding plant with those collected from local beaches and subjected to aging, attrition and deposition of extraneous material. Pellets col...
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Historically, marine resources have provided a major protein source for the people of Guam, and fishing is still and important commercial and recreational activity. Local inhabitants commonly harvest a variety of algae, molluscs, crustaceans, sea cucumbers and fish for sale and home consumption (Amesbury et al., 1986). These resources have been relatively protected from the adverse effects of p...
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Safety has emerged as an issue for the fresh fruit and vegetable industry with reports of several food poisoning outbreaks traced to E. Coli. Although these outbreaks generate a great deal of attention, probably many more fresh food contamination instances go undetected. While the agricultural supply chain is complex, new technologies are available that hold the promise of better track and trac...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2002
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps243295