Radioactive contamination of aquatic insects in a stream impacted by the Fukushima nuclear power plant accident
- 739 Downloads
The Fukushima Daiichi Nuclear Power Plant accident emitted radioactive substances into the environment, contaminating a diverse range of organisms. Stream algae, litter, sand substrate, aquatic insects and fishes are among the organisms that have been impacted. Radioactive Cs contaminations in the litter and sand substrate were elevated where the atmospheric dose rate in the air was high. Radioactive Cs contaminations in algae and aquatic insects varied irregularly; nevertheless, radioactive Cs contaminations in aquatic insects in pools were consistently higher than those in stream riffles. Contamination by the radioactive Cs differed by species, location and stream velocity. This study was undertaken in a limited number of samples and sites, with more extensive studies planned to fully determine the impact of radionuclides on aquatic ecosystems.
KeywordsAlgae Aquatic insects Litter Radioactive cesium Stream
We would like to thank Dr. Makino, Dr. Takahashi and Dr. Ikeda of the Forestry and Forest Products Research Institute for their assistance with the sampling survey and measurement of radioactive substances, Dr. Yamamoto of the National Research Institute of Aquaculture, and Dr. Yokozuka and Dr. Yoshida of the fisheries experimental station of Tochigi Prefecture for their assistance with the sampling survey. This work was supported in part by a research grant from the Council of Science and Technology Policy in 2012, Japan.
- Brittain, J. E. & L. Håkanson, 2002. The freshwater environment and application of countermeasures. Madrid, Spain: EC-sponsored training course on Radoecological assessment and decision-making techniques for the management of contaminated freshwater ecosystems (TRA-RAD-FW).Google Scholar
- Corbet, P. S., 1998. Dragonflies Behavior and Ecology of Odonata. Cornell University Press, New York, USA.Google Scholar
- Furukawa, F., S. Watanabe, S. Kimura & T. Kaneko, 2012b. Potassium excretion through ROMK potassium channel expressed in gill mitochondrion-rich cells of Mozambique tilapia. American Journal of Physiology -Regulatory, Integrative and Comparative Physiology 302: R568–R576.PubMedCrossRefGoogle Scholar
- Hashimoto, S., S. Ugawa, K. Nanko, & K. Shichi, 2012. The total amounts of radioactively contaminated materials in forests in Fukushima, Japan. Scientific Reports 2: article number 416.Google Scholar
- Hofman, D., L. Monte, P. Boyer, J. Brittain, G. Donchyts, E. Gallego, D. Gheorghiu, L. Håkanson, R. Heling, A. Kerekes, G. Kocsy, S. Lepicard, O. Slavik, D. Slavnicu, J. Smith & M. Zheleznyak, 2011. Computerised decision support systems for the management of freshwater radioecological emergencies: assessment of the state-of-the-art with respect to the experiences and needs of end-users. Journal of Environmental Radioactivity 102: 119–127.PubMedCrossRefGoogle Scholar
- Itazawa, Y. & I. Hanyu, 1991. Fish Physiology. Kouseisha Kouseikaku, Tokyo, Japan.Google Scholar
- Kinoshita, N., K. Sueki, K. Sasa, J. Kitagawa, S. Ikarashi, T. Nishimura, Y. S. Wong, Y. Satou, K. Handa, T. Takahashi, M. Sato & T. Yamagata, 2011. Assessment of individual radionuclide distributions from the Fukushima nuclear accident covering central-east Japan. Proceedings of the National Academy of Sciences of the United States of America 108: 19526–19529.PubMedCrossRefGoogle Scholar
- Komnick, H. & W. Wichard, 1975. Chloride cells of larval notonecta-glauca and Naucoris-cimicoides (Hemiptera, Hydrocorisae) fine-structure and cell counts at different salinities. Cell and Tissue Research 56: 539–549.Google Scholar
- Merritt, R. W. & K. W. Cummins, 1996. An Introduction to the Aquatic Insects of North America, 3rd ed. Kendall/Hunt, Dubuque, IA, USA.Google Scholar
- Mietelskia, J. W., S. Maksimovab, P. Szwałkoc, K. Wnukd, P. Zagrodzkia, S. Błażeja, P. Gacaa, E. Tomankiewicza & O. Orlovf, 2010. Plutonium, 137Cs and 90Sr in selected invertebrates from some areas around Chernobyl nuclear power plant. Journal of Environmental Radioactivity 101: 488–493.CrossRefGoogle Scholar
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), 2013. Database on the Research of Radioactive Substances Distribution. http://radb.jaea.go.jp/mapdb/en/.
- Ohara, T., Y. Morino & A. Tanaka, 2011. Atmospheric behavior of radioactive materials from Fukushima Daiichi Nuclear Power Plant. Journal of the National Institute of Public Health 60: 292–299.Google Scholar
- Report of the Chernobyl Forum Expert Group ‘Environment’, 2006. Environmental Consequences of the Chernobyl Accident and their Remediation: Twenty Years of Experience. Radiological Assessment Reports Series, IAEA, Vienna, Austria.Google Scholar
- Ward, J. V., 1992. Aquatic Insect Ecology: I. Biology and Habitat. Wiley and Sons, New York, USA.Google Scholar
- Wichard, W., W. Arens & G. Eisenbeis, 2002. Biological Atlas of Aquatic Insects. Apollo Books, Stenstrup, Denmark.Google Scholar
- Yablokov, A. V., V. B. Nesterenko & A. V. Nesterenko, 2009. Chernobyl, Consequences of the Catastrophe for People and the Environment. Annals of the New York Academy of Sciences Volume 1181, USA.Google Scholar