Radiocesium biokinetics in olive flounder inhabiting the Fukushima accident-affected Pacific coastal waters of eastern Japan

Tateda, Yutaka; Tsumune, Daisuke; Tsubono, Takaki; Aono, Tatsuo; Kanda, Jun; Ishimaru, Takashi

doi:10.1016/j.jenvrad.2015.05.025

Cited by 35 publications

(13 citation statements)

References 22 publications

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“…For organisms in natural settings, this decrease is quantified by the ecological half-life, i.e., the time required for a 50% decline in organism radionuclide activity. Indeed, Cs levels decrease by a factor of 2 in just a few months in various planktivorous fish and their predators, and closer to a year in various coastal demersal fish at higher trophic levels (Iwata et al 2013, Tateda et al 2015, Tagami & Uchida 2016. This decrease in Cs activities in some demersal fish species is taking longer than predicted, which has been attributed to continuing contamination of their food source (benthic infauna) from sediments (see discussion above) (Buesseler 2012, Tateda et al 2013, Wada et al 2013, Sohtome et al 2014, Tateda et al 2015.…”

Section: Figurementioning

confidence: 94%

“…Indeed, Cs levels decrease by a factor of 2 in just a few months in various planktivorous fish and their predators, and closer to a year in various coastal demersal fish at higher trophic levels (Iwata et al 2013, Tateda et al 2015, Tagami & Uchida 2016. This decrease in Cs activities in some demersal fish species is taking longer than predicted, which has been attributed to continuing contamination of their food source (benthic infauna) from sediments (see discussion above) (Buesseler 2012, Tateda et al 2013, Wada et al 2013, Sohtome et al 2014, Tateda et al 2015. Ecological half-lives on the order of 100 days for bivalves and gastropods and on the order of several hundred days for polychaetes have been reported (Iwata et al 2013, Wada et al 2013, Sohtome et al 2014.…”

Section: Figurementioning

confidence: 99%

See 1 more Smart Citation

Fukushima Daiichi–Derived Radionuclides in the Ocean: Transport, Fate, and Impacts

Buesseler

Dai

Aoyama

et al. 2017

Annu. Rev. Mar. Sci.

240

126

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The events that followed the Tohoku earthquake and tsunami on March 11, 2011, included the loss of power and overheating at the Fukushima Daiichi nuclear power plants, which led to extensive releases of radioactive gases, volatiles, and liquids, particularly to the coastal ocean. The fate of these radionuclides depends in large part on their oceanic geochemistry, physical processes, and biological uptake. Whereas radioactivity on land can be resampled and its distribution mapped, releases to the marine environment are harder to characterize owing to variability in ocean currents and the general challenges of sampling at sea. Five years later, it is appropriate to review what happened in terms of the sources, transport, and fate of these radionuclides in the ocean. In addition to the oceanic behavior of these contaminants, this review considers the potential health effects and societal impacts.

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Section: Figurementioning

confidence: 94%

Section: Figurementioning

confidence: 99%

Fukushima Daiichi–Derived Radionuclides in the Ocean: Transport, Fate, and Impacts

Buesseler

Dai

Aoyama

et al. 2017

Annu. Rev. Mar. Sci.

240

126

View full text Add to dashboard Cite

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“…A previous research described that radionuclide bioavailability from contaminated sediment is typically low with the transfer factor [20] because of strong interaction of Cs mineral with clay minerals [21]. But, the slow decrease of radioactive Cs in demersal fishes was presumed as the result from continuing contamination of their food source (benthic infauna) from sediment [13,15,16,[22][23][24][25]. In fact, some studies after the FNPP accident indicated the presence of organically bound radioactive Cs, which can be bioavailable [26,27].…”

Section: Radioactive Pollution Of Fishery Productsmentioning

confidence: 99%

Impacts of the Fukushima Nuclear Accident on Fishery Products and Fishing Industry

Morita

Ambe

Miki

et al. 2019

Low-Dose Radiation Effects on Animals and Ecosystems

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On March 11, 2011, a massive earthquake and the resultant gigantic tsunami struck the Tohoku area of Japan (the Great East Japan Earthquake) and damaged many fishing boats and fishing ports. The earthquake and the subsequent tsunami also seriously caused the damage to Fukushima Daiichi Nuclear Power Plant (FNPP). Consequently, large amounts of radioactive cesium (Cs) were released into the atmosphere and ocean and subsequently polluted fishery products of Fukushima and adjacent prefectures. The Fukushima Prefectural Federation of Fisheries Cooperative Association (Fukushima FCA) has voluntarily stopped the fishing operations off Fukushima Prefecture since March 2011 due to the influence by the FNPP accident. The concentration of radioactive Cs in seawater rapidly decreased by ocean processes, and accordingly the concentration in fishery products did reduce. From April to June 2011, the proportion of inspected specimens off Fukushima exceeding the Japanese regulatory limit was 57.1%, but it decreased and continued to be 0% after April 2015. In addition, most of fishing industries in Fukushima Prefecture have been already restored from the damage by the earthquake and its aftermath. The Fukushima FCA started the trial fishing operation from June 2012.

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“…In this context, it is important to look at the results of activities of radioecologists outside the present network of collaborators (Baumann et al, 2015;Fukuda et al, 2017;Tateda et al, 2015;Tateda et al, 2017;Tateda et al, 2013;Tateda et al, 2016;Wang et al, 2016) in order to arrive at a true synthesis of marine radioecology research.…”

Section: International Dimension Of the Research Performedmentioning

confidence: 99%

Marine radioecology after the Fukushima Dai-ichi nuclear accident: Are we better positioned to understand the impact of radionuclides in marine ecosystems?

Batlle

Aoyama

Bradshaw

et al. 2018

Science of The Total Environment

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This paper focuses on how a community of researchers under the COMET (CO-ordination and iMplementation of a pan European projecT for radioecology) project has improved the capacity of marine radioecology to understand at the process level the behaviour of radionuclides in the marine environment, uptake by organisms and the resulting doses after the Fukushima Dai-ichi nuclear accident occurred in 2011. We present new radioecological understanding of the processes involved, such as the interaction of waterborne radionuclides with suspended particles and sediments or the biological uptake and turnover of radionuclides, which have been better quantified and mathematically described.We demonstrate that biokinetic models can better represent radionuclide transfer to biota in nonequilibrium situations, bringing more realism to predictions, especially when combining physical, chemical and biological interactions that occur in such an open and dynamic environment as the ocean. As a result, we are readier now than we were before the FDNPP accident in terms of having models that can be applied to dynamic situations.The paper concludes with our vision for marine radioecology as a fundamental research discipline and we present a strategy for our discipline at the European and international levels. The lessons learned 2 are presented along with their possible applicability to assess/reduce the environmental consequences of future accidents to the marine environment and guidance for future research, as well as to assure sustainability of marine radioecology in Europe and globally. This guidance necessarily reflects on why and where further research funding is needed, signalling the way for future investigations.3

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Radiocesium biokinetics in olive flounder inhabiting the Fukushima accident-affected Pacific coastal waters of eastern Japan

Cited by 35 publications

References 22 publications

Fukushima Daiichi–Derived Radionuclides in the Ocean: Transport, Fate, and Impacts

Fukushima Daiichi–Derived Radionuclides in the Ocean: Transport, Fate, and Impacts

Impacts of the Fukushima Nuclear Accident on Fishery Products and Fishing Industry

Marine radioecology after the Fukushima Dai-ichi nuclear accident: Are we better positioned to understand the impact of radionuclides in marine ecosystems?

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