TY - JOUR
T1 - An Ecopath with Ecosim model for the Pacific coast of eastern Japan
T2 - Describing the marine environment and its fisheries prior to the Great East Japan earthquake
AU - Booth, Shawn
AU - Walters, William J.
AU - Steenbeek, Jeroen
AU - Christensen, Villy
AU - Charmasson, Sabine
N1 - Funding Information:
This work has been funded by the Institut de Radioprotection et de Sûreté Nucléaire and by the French program Investissement d'Avenir run by the National Research Agency (AMORAD project, grant ANR-11-RSNR-0002 ). The authors would like to thank the Central Research Institute of Electric Power Industry (Abiko, Japan) for hosting SB for one month and Yutaka Tateda for assisting with the translation of articles in Japanese. The authors would also like to thank Japan's Ministry of Agriculture Forestry and Fishery for providing fisheries data when requested, two anonymous reviewers, and the editor for enhancing the manuscript through their comments.
Funding Information:
This work has been funded by the Institut de Radioprotection et de S?ret? Nucl?aire and by the French program Investissement d'Avenir run by the National Research Agency (AMORAD project, grant ANR-11-RSNR-0002). The authors would like to thank the Central Research Institute of Electric Power Industry (Abiko, Japan) for hosting SB for one month and Yutaka Tateda for assisting with the translation of articles in Japanese. The authors would also like to thank Japan's Ministry of Agriculture Forestry and Fishery for providing fisheries data when requested, two anonymous reviewers, and the editor for enhancing the manuscript through their comments.
Publisher Copyright:
© 2020 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/15
Y1 - 2020/7/15
N2 - A mass balance model of the marine ecosystems is presented for the four prefectures of Japan prior to the Great East Japan earthquake. The Ecopath with Ecosim food web modelling approach and its Ecotracer routine were used to simulate the concentrations of 137Cs in the ocean and the biota in order to serve as baseline, and to estimate the initial conditions for impact scenarios. Results of the Ecopath model were checked against pre-balance [PREBAL] diagnostics for integrity. 137Cs was shown to bioaccumulate with increases in trophic level, and has a tendency to biomagnify. Generally, for fish species, the dominant pathway of contaminant accumulation was through diet, whereas for invertebrates it was through respiration. Ecotracer was able to accurately model the expected concentrations in organisms that had existing concentration ratio data from field measurements, and also make predictions on biota lacking concentration data. In 2010, using national fishery landing statistics for the four prefectures and predicted whole body concentrations of 137Cs, it is estimated that the apparent direct and indirect human food supply of 137Cs from fisheries to the market was 46.1 MBq.
AB - A mass balance model of the marine ecosystems is presented for the four prefectures of Japan prior to the Great East Japan earthquake. The Ecopath with Ecosim food web modelling approach and its Ecotracer routine were used to simulate the concentrations of 137Cs in the ocean and the biota in order to serve as baseline, and to estimate the initial conditions for impact scenarios. Results of the Ecopath model were checked against pre-balance [PREBAL] diagnostics for integrity. 137Cs was shown to bioaccumulate with increases in trophic level, and has a tendency to biomagnify. Generally, for fish species, the dominant pathway of contaminant accumulation was through diet, whereas for invertebrates it was through respiration. Ecotracer was able to accurately model the expected concentrations in organisms that had existing concentration ratio data from field measurements, and also make predictions on biota lacking concentration data. In 2010, using national fishery landing statistics for the four prefectures and predicted whole body concentrations of 137Cs, it is estimated that the apparent direct and indirect human food supply of 137Cs from fisheries to the market was 46.1 MBq.
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U2 - 10.1016/j.ecolmodel.2020.109087
DO - 10.1016/j.ecolmodel.2020.109087
M3 - Article
AN - SCOPUS:85089280118
VL - 428
JO - Ecological Modelling
JF - Ecological Modelling
SN - 0304-3800
M1 - 109087
ER -