@misc{oai:repo.qst.go.jp:00062794,
 author = {Yoshida, Satoshi and Ishii, Nobuyoshi and Ishikawa, Yuuji and Kawaguchi, Isao and Kubota, Yoshihisa and Tagami, Keiko and Takeda, Hiroshi and Doi, Masahiro and Nakamori, Taizo and Ban-nai, Tadaaki and Fujimori, Akira and Fuma, Shoichi and Maruyama, Kouichi and Yasuda, Takako and Yanagisawa, Kei and Miyamoto, Kiriko and Watanabe, Yoshito and 吉田 聡 and 石井 伸昌 and 石川 裕二 and 川口 勇生 and 久保田 善久 and 田上 恵子 and 武田 洋 and 土居 雅広 and 中森 泰三 and 坂内 忠明 and 藤森 亮 and 府馬 正一 and 丸山 耕一 and 保田 隆子 and 柳澤 啓 and 宮本 霧子 and 渡辺 嘉人},
 month = {Oct},
 note = {Recently, the importance of radiological protection of the environment is increasingly recognized internationally. However, the relevant scientific data are extremely limited, especially for Asian environment. This paper summarizes research activities in National Institute of Radiological Sciences (NIRS) for evaluation of the radiation effects on selected terrestrial and aquatic organisms as well as the ecosystems. Seven organisms, conifers, fungi, earthworms, collembolans, algae, daphnia and Medaka are presently selected to study. Most of them play important roles in Japanese ecosystems and are possibly useful for bio-indicator of the radiation effects. For the estimation of possible radiation dose, transfers of radionuclides and related elements from medium to organisms are evaluated. Dose-effect relationships of acute gamma radiation on the survival, growth, and reproduction of selected organisms have been studied. Studies on the effect of chronic gamma radiation at low dose rate were also started. In order to understand the mechanism of radiation effects and to find possible indicators of the effects, information of genome- and metagenome-wide gene expression obtained by the High Coverage Expression Profiling (HiCEP) has been collected. Evaluation of ecological effects of radiation is more challenging task. Study methods by using a microcosm, i.e. an experimental model ecosystem consisting of three microorganisms, were established, and an index for the holistic evaluation of effects on various ecological parameters, such as sizes of population or community was proposed. The microcosm has been simulated for its population dynamics, and mass and energy budgets as a computer simulation code. Developments of more complicated and practical model ecosystems have been started. The Denaturant Gradient Gel Electrophoresis (DGGE) has been applied on soil bacterial community in order to evaluate the radiation effects on soil ecosystems., The 16th Pacific Basin Nuclear Conference},
 title = {Radiation Effects on Non-human Biota and Ecosystems - Researches in National Institute of Radiological Sciences, Japan},
 year = {2008}
}