Abstract：
:137Cs bioaccumulation and retention in seven different marine animal species, including crustaceans, mollusc larvae, and fish larvae were compared under different temperature conditions (10 °C, 18 °C and 25 °C). Replicate animals were experimentally exposed to 0.5 nM 137Cs dissolved in filtered seawater for 3 days, and their 137Cs contents were periodically measured using gamma spectrometry. Among the seven species, 137Cs bioconcentration factors ranged from 14 to 239 at the end of the exposure periods. Following uptake, the137Cs loss rate constants from the animals ranged from 5 to 50% d-1 and were unaffected by temperature or animal size. The 137Cs bioconcentration factors were directly related to animal size and hence their surface: volume ratios, consistent with the conclusion that Cs sorption from the aqueous phase is the principal uptake mechanism in these animals. With the exception of gastropods, temperature had no major influence on Cs uptake and efflux in the experimental species.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Thomas DM,Fisher NSdoi
10.1016/j.jenvrad.2019.02.005subject
Has Abstractpub_date
2019-06-01 00:00:00pages
25-31eissn
0265-931Xissn
1879-1700pii
S0265-931X(18)30625-8journal_volume
202pub_type
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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