Biomagnification of radiocesium in a marine piscivorous fish
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چکیده
منابع مشابه
Biomagnification of radiocesium in a marine piscivorous fish
Radiocesium is the only trace element apart from Hg that may be potentially biomagnified at the top of the marine planktonic food chain. We quantified the assimilation efficiency from ingested prey, uptake rate from the aqueous phase, and efflux rate of radiocesium in a marine piscivorus fish (the mangrove snapper Lutjanus argentimaculatus). Aqueous 137Cs exhibited an approximately linear uptak...
متن کاملModeling radiocesium bioaccumulation in a marine food chain
We measured the transfer of radiocesium in a marine food chain from phytoplankton to bivalves and finally to a predatory gastropod (Babylonia formosae habei). The assimilation efficiency (AE) of radiocesium in both green mussels (Perna viridis) and the gastropods feeding on different diets was measured by a pulse-chase feeding radiotracer technique. The AEs of 137Cs in the green mussels ranged ...
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Background: The Present study was carried out to track and calculate Biomagnification Factor (BMF) of total mercury (T-Hg) between two different trophic levels (i.e., plankton and a planktivorous fish) in a fresh water grazing food chain. Methods: Experimental organisms were planktonic biomass and silver carp (Hypophthalmichthys molitrix) as a planktivorous fish. Silver carp samples were obt...
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Guadalupe Reservoir (GUA), California, and Lahontan Reservoir (LAH), Nevada, U.S. are both affected either directly or indirectly by the legacy of gold and silver mining in the Sierra Nevada during the nineteenth century. Analysis of total mercury in fish from these lentic systems consistently indicate elevated concentrations (>1 microg x g(-1) wet weight; hereinafter, all concentrations are re...
متن کاملContamination profile of heavy metals in marine fish and shellfish
Rapid industrialization along with advanced agricultural activities led to the contamination in aquatic environment with heavy metals. Heavy metals ultimately pass into human body through having aquatic animals like fish, prawn and crab. In this study, accumulation of heavy metals (zinc, copper, iron, cadmium and lead) in various organs of four commonly consumed fish (Euthynnus affinis...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2001
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps222227