The fate of radiocesium in freshwater communities—Why is biomagnification variable both within and between species?

Rowan, David J.; Chant, L.A.; Rasmussen, Joseph B.

doi:10.1016/s0265-931x(97)00066-0

Cited by 57 publications

(41 citation statements)

References 14 publications

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“…This is in agreement with the findings of a number of previous authors who have reported higher Cs concentrations in piscivorous, or predatory, fish compared to fish feeding on benthos, invertebrates and primary producers (e.g. Kryshev 1995, Kryshev et al, 1993Rowan et al, 1998;Rowan and Rasmussen, 1994;Saxén and Ilus, 2008;Smith et al, 2000). We should acknowledge that the data from some of these papers were included within our analyses, although they comprise a relatively small proportion of the total data available to us via the database described by Yankovich et al (in-press).…”

Section: Reml Analysissupporting

confidence: 93%

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

Beresford

Yankovich

Fesenko

et al. 2013

Science of The Total Environment

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The NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. AbstractThe application of the concentration ratio (CR) to predict radionuclide activity concentrations in wildlife from those in soil or water has become the widely accepted approach for environmental assessments. Recently both the ICRP and IAEA have produced compilations of CR values for application in environmental assessment. However, the CR approach has many limitations most notably that transfer of most radionuclides is largely determined by site-specific factors (e.g. water or soil chemistry). Furthermore, there are few, if any, values for many radionuclide-organism combinations. In this paper we propose an alternative approach and, as an example, demonstrate and test this for caesium and freshwater fish. Using a Residual Maximum Likelihood (REML) mixed-model regression we analysed a dataset comprising 597 entries for 53 freshwater fish species from 67 sites. The REML analysis generated a mean value for each species on a common scale after REML adjustment taking account of the effect of the inter-site variation. Using an independent dataset, we subsequently test the hypothesis that the REML model outputs can be used to predict radionuclide, in this case radiocaesium, activity concentrations in unknown species from the results of a species which has been sampled at a specific site. The outputs of the REML analysis accurately predicted 137 Cs activity concentrations in different species of fish from 27 Finnish lakes; these data had not been used in our initial analyses. We recommend that this alternative approach be further investigated for other radionuclides and ecosystems.

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Section: Reml Analysissupporting

confidence: 93%

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

Beresford

Yankovich

Fesenko

et al. 2013

Science of The Total Environment

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“…These low BSAFs suggest that little of the 137 Cs in Ottawa River sediment is bioavailable. For example, bioamagnification factors (ratio of radionuclide concentrations in biota to their diet) are typically 4 for diets low in clay [27], or about 300-fold greater than observed in this study for benthic invertebrates feeding on sediment.…”

mentioning

confidence: 59%

“…Orconectes have significantly greater concentrations of 137 Cs than either macrophytes or unionid bivalves, reflecting their omnivorous diet and higher trophic level [26,27]. This suggests a step-like increase of about 2-fold downstream of the process outfall, which is a much less dramatic pattern than that observed for sediment (Figures 14, 15).…”

Section: Concentrations Of 137mentioning

confidence: 88%

Biota-Sediment Accumulation Factors (BSAF) for Radionuclides and Sediment Associated Biota of the Ottawa River

Rowan

Silke

Carr

2013

AECL Nuclear Review

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“…Trophic level is an important ecological factor affecting bioaccumulation of 137 Cs in fish [5]. Piscivores tend to accumulate more 137 Cs than planktivores or benthivores [6,7]; For example, in the Agano River Basin in Fukushima,137 Cs contamination of carnivorous salmonids was roughly twice that of the herbivore ayu Plecoglossus altivelis [8].…”

Section: Introductionmentioning

confidence: 99%

Comparison of radioactive cesium contamination of lake water, bottom sediment, plankton, and freshwater fish among lakes of Fukushima Prefecture, Japan after the Fukushima fallout

et al. 2015

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The fate of radiocesium in freshwater communities—Why is biomagnification variable both within and between species?

Cited by 57 publications

References 14 publications

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

A new approach to predicting environmental transfer of radionuclides to wildlife: A demonstration for freshwater fish and caesium

Biota-Sediment Accumulation Factors (BSAF) for Radionuclides and Sediment Associated Biota of the Ottawa River

Comparison of radioactive cesium contamination of lake water, bottom sediment, plankton, and freshwater fish among lakes of Fukushima Prefecture, Japan after the Fukushima fallout

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