URAI Atsushi
Academic Assembly School of Science and Technology Institute of Science
Faculty of Science Department of Science Course of Environmental Sciences
Assistant Professor
Researcher Information
Research Keyword
- Dissolved Organic Matter, Radiocarbon isotope ratio analysis, carbon cycle, methane, limnology, Organic geochemistry, Dissolved Organic Matter, carbon cycle, limnology, methane, Organic geochemistry, Radiocarbon isotope ratio analysis
Field Of Study
Mail Address
- uraia★shinshu-u.ac.jp
Web site
Career
- 2023 - Present
Japan Agency for Marine-Earth Science and Technology, 海洋機能利用部門 生物地球化学センター, Guest Researcher - 2023
Guest Researcher, Japan Agency for Marine-Earth Science and Technology - 2023 - Present
Shinshu University, Faculty of Science Department of Science Course of Environmental Science, Assistant Professor - 2023
Assistant Professor, Faculty of Science Department of Science Course of Environmental Science, Shinshu University - 2021 - Present
Keio University, Teacher Training Center, Part-time University Lecturer - 2021 - 2023
Japan Agency for Marine-Earth Science and Technology, Biogeochemistry Research Center, Research Institute for Marine Resources Utilization,, JSPS Research Fellow - 2021
Part-time University Lecturer, Teacher Training Center, Keio University - 2021 - 2023
JSPS Research Fellow, Biogeochemistry Research Center, Research Institute for Marine Resources Utilization,, Japan Agency for Marine-Earth Science and Technology - 2020 - 2021
Japan Agency for Marine-Earth Science and Technology, Biogeochemisry Center (BGC), Research Institute for Marine Resources Utilization (MRU), Research Assistant (Research Student) - 2020 - 2021
Research Assistant (Research Student), Biogeochemisry Center (BGC), Research Institute for Marine Resources Utilization (MRU), Japan Agency for Marine-Earth Science and Technology - 2019 - 2020
Japan Agency for Marine-Earth Science and Technology, Biogeochemisry Program, Research Institute for Marine Resources Utilization, Research Assistant（Research student） - 2019 - 2020
Research Assistant（Research student）, Biogeochemisry Program, Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology - 2017 - 2019
Japan Agency for Marine-Earth Science and Tecnology, Department of Biogeochemistry, Research Assistant (Research Student) - 2017 - 2019
Research Assistant (Research Student), Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Tecnology - 2014 - 2017
株式会社エスコ, 環境生態グループ 環境調査分析部門, 計量管理責任者
Educational Background
Research activity information
Award
Paper
- Methane- and hydrogen-dependent prokaryotic deep biosphere at the Suwa Basin, Japan: impacts of hydrogeological processes on subsurface prokaryotic ecology at the boundary between the North American and the Eurasian Plates
Hiroki Nishimura; Atsushi Urai; Yohei Matsui; Toshihiro Yoshimura; Miyuki Ogawara; Hiroyuki Imachi; Yosuke Miyairi; Yusuke Yokoyama; Yuichi Miyabara; Yoshio Takahashi; Yoshinori Takano
Progress in Earth and Planetary Science, Oct. 2025
- Role of strike-slip faults on the regional groundwater flow in the complex aquifer system of Lake Suwa watershed, Japan
Koichi Sakakibara; Mizuki Hori; Yoshitake Nagahata; Yuichi Miyabara; Atsushi Urai; Keisuke Suzuki
Journal of Hydrology, 653, 132790-132790, Jun. 2025, Refereed, Not invited - Sub-daily variations in nitrous oxide fluxes from the littoral zone of a temperate eutrophic lake
Hiroki Iwata; Shunta Kawagishi; Kenshi Takahashi; Yuichi Miyabara; Hirohiko Nagano; Masayuki Itoh; Kazuki Suzuki; Atsushi Urai
Inland Waters, 653(132790), 1-50, Apr. 2025, Refereed, Not invited - Origin of Deep Methane from Active Faults along the Itoigawa–Shizuoka Tectonic Line between the Eurasian and North American Plates: 13C/12C and 14C/12C Methane Profiles from a Pull-Apart Basin at Lake Suwa
Atsushi Urai; Yoshinori Takano; Yohei Matsui; Hiroki Iwata; Yosuke Miyairi; Yusuke Yokoyama; Yuichi Miyabara; Naohiko Ohkouchi; Ho-Dong Park
ACS Earth and Space Chemistry, Jul. 2022, Refereed, Not invited
Lead, Corresponding - Detection of planktonic coenzyme factor 430 in a freshwater lake: small-scale analysis for probing archaeal methanogenesis
Atsushi Urai; Makoto Matsushita; Ho-Dong Park; Hiroyuki Imachi; Miyuki Ogawara; Hiroki Iwata; Masanori Kaneko; Nanako O. Ogawa; Naohiko Ohkouchi; Yoshinori Takano
Progress in Earth and Planetary Science, 8(1), 62, Dec. 2021, Refereed, Not invited
Lead, Corresponding - Origin of Deep Methane Associated with a Unique Community of Microorganisms in an Organic- and Iodine-Rich Aquifer
Atsushi Urai; Yoshinori Takano; Hiroyuki Imachi; Shun’ichi Ishii; Yohei Matsui; Miyuki Ogawara; Eiji Tasumi; Yosuke Miyairi; Nanako O. Ogawa; Toshihiro Yoshimura; Fumio Inagaki; Yusuke Yokoyama; Kenjiro Kawano; Daisuke Murai; Ho-Dong Park; Naohiko Ohkouchi
ACS Earth and Space Chemistry, 5(1), 1-11, Jan. 2021, Refereed, Not invited
Lead, Corresponding - Difference in the foraging strategy between daphnia and copepods in Shirakoma-ike: evidence from 15N / 14N of amino acids
Atsushi Urai; Ho-Dong Park
Researches in Organic Geochemistry, 35(2), 37-43, Dec. 2019, Refereed, Not invited
Lead, Corresponding - Algal-derived 24-ethylcholesta-5,22-dien-3β-ol (stigmasterol) is frequently found in high-molecular-weight dissolved organic matter (HMW-DOM) during summer in freshwater and brackish lakes
Atsushi Urai; Koji Takahashi; Yoshito Chikaraishi; Kazuo Fukushima
GEOCHEMICAL JOURNAL, 52(4), e15-e20, Jun. 2018, Refereed, Not invited
Lead, Corresponding - Detection of planktonic coenzyme factor 430 in a freshwater lake: Small-scale analysis for probing archaeal methanogenesis
Atsushi Urai; Makoto Matsushita; Ho-Dong Park; Hiroyuki Imachi; Miyuki Ogawara; Hiroki Iwata; Masanori Kaneko; Nanako O. Ogawa; Naohiko Ohkouchi; Yoshinori Takano
Lead, Corresponding
MISC
- 異なる自生性有機物の添加に対する富栄養湖堆積物中のメタン生成応答の違い
JET Yang Chun; 岩田拓記; 朴虎東; 宮原裕一; 浦井暖史; 二木功子; 伊藤雅之; 高野淑識
日本農業気象学会全国大会講演要旨(CD-ROM), 2024, 2024 - 異なる自生性有機物の添加に対する富栄養湖堆積物中のメタン生成応答の違い
YANG Chun Jet; 岩田拓記; 朴虎東; 宮原裕一; 伊藤雅之; 浦井暖史; 高野淑識
日本農業気象学会全国大会講演要旨(CD-ROM), 2023, 2023 - LC-MS/MSによる補酵素F430の高感度分析法：環境中のメタン生成アーキアの探索
浦井 暖史
ぶんせき, 221, Jun. 2022, Invited - アオコ添加に対する富栄養湖堆積物中のメタン生成の応答
JET Yang Chun; 岩田拓記; 朴虎東; 宮原裕一; 伊藤雅之; 高野淑識; 浦井暖史
日本農業気象学会全国大会講演要旨(CD-ROM), 2022 (CD-ROM), 2022 - 補酵素F430を経由するメタン生成とメタン酸化の2核種炭素同位体比フィンガープリント法の展開：地球深部での炭素循環
高野淑識; 浦井暖史; 金子雅紀; 大河内直彦
Isotope news, 778, 36 - 40, Dec. 2021, Refereed, Invited - Carbon cycle and interactions between surface hydrogen and deep-subsurface: key molecule and isotopic ratio approaches
Atsushi Urai
Chikyukagaku, 55(3), 87 - 88, Sep. 2021, Not invited
Lead - 南関東ガス田の地下水に存在する「メタン生成アーキア」、大半は生きた状態で存在していた
浦井 暖史
アカデミストジャーナル, Apr. 2021, Invited - 植物プランクトン添加に対する湖底堆積物中のメタン生成の応答
YANG Chun Jet; 岩田拓記; 朴虎東; 宮原裕一; 伊藤雅之; 高野淑識; 浦井暖史
日本農業気象学会関東甲信越支部例会一般講演要旨集(Web), (17), 2021 - Load to researcher
Atsushi Urai
News letter of The Japanese Association of Organic Geochemistry, 68, 8 - 11, Jul. 2018, Invited
Lectures, oral presentations, etc.
- プレート境界に発達したメタン依存地下生命圏：物質循環が制約する微生物生態
西村 大樹; 浦井 暖史; 松井 洋平; 吉村 寿紘; 小河原 美幸; 井町寛之; 宮入 陽介; 横山 祐典; 宮原 裕一; 高橋 嘉夫; 高野 淑識
日本微生物生態学会第38回 東京大会, Sep. 2025, Not invited一次生産量の変遷から見た諏訪湖周辺の古環境変遷の推定
松本拓也; 浦井暖史; 公文富士夫; 葉田野希
日本地球化学会第72回年会, Sep. 2025, Not invited諏訪湖から湧出するメタンが表層生態系に与える影響： 放射性炭素アイソスケープ解析
浦井暖史; 高野淑識; 松井洋平; 岩田拓記; 宮原裕一; 朴虎東; 宮入陽介; 横山裕典; 大河内直彦
日本陸水学会第89回札幌大会, Sep. 2025, Not invitedMethane and hydrogen dependent deep biosphere at the boundary between the North American and the Eurasian Plates: Hydrogeological controls on prokaryotic ecology
Hiroki Nishimura; Atsushi Urai; Yohei Matsui; Toshihiro YOSHIMURA; Miyuki Ogawara; Hiroyuki Imachi; Yosuke Miyairi; Yusuke Yokoyama; Yuichi Miyabara; Yoshio Takahashi; Yoshinori Takano
JpGU Meeting 2025, May 2025, Not invited遠回りが最短ルート！？ 企業→博士→大学教員のリアル
浦井暖史
日本地下水学会2025年春季講演会若手交流会, May 2025, Not invited：同位体の基礎を学ぼう！ ～基礎から学ぶ生元素同位体比～ 2025年
浦井暖史
地球化学若手会 2024年度春の研究会, Mar. 2025, Invitedアミノ酸窒素同位体比を用いた諏訪湖における食物網解析
浦井暖史; 小川耕平; 石川尚人; 宮原裕一; 小川奈々子; 大河内直彦; 高野淑識
諏訪湖研究連絡会, Feb. 2025, Not invitedセルリーApium graveolens L.によるラン藻Microcystis aeruginosa に対する抑制物質の探索
小野ひなた; 浦井暖史; 二木功子; 朴虎東
日本陸水学会甲信越支部会 第50回研究発表会, Dec. 2024, Not invited窒素同位体比を用いた環境要因による食物網変遷の検証
小川耕平; 浦井暖史
日本陸水学会甲信越支部会 第50回研究発表会, Dec. 2024, Not invitedフラボノイドによる藍藻の抑制と淡⽔巻き⾙へ の藍藻毒の取り込み阻害の検証
小野ひなた; 羽生瑶実; 二木功子; 浦井暖史; 朴⻁東
日本陸水学会第88回 熊本大会, Oct. 2024, Not invitedアミノ酸窒素同位体比による諏訪湖の水圏生態系食物網解析
浦井暖史; 龍野紘明; 笠原里恵; 宮原裕一; 朴虎東; 高野淑識; 石川尚人; 小川奈々子; 大河内直彦
日本陸水学会第88回 熊本大会, Oct. 2024, Not invited地球化学的手法による生命探査研究のレビュー どうやって研究に携われるか？
浦井暖史
生命の起源および進化学会 夏の学校2024, Sep. 2024, InvitedMulti Depth and Double Pore-size Exploration of Subsurface Biosphere Inhabiting the Methane-rich Deep Aquifers at Suwa Basin, Japan.
H, Nishimura; A. Urai; Y. Matsui; T. Yoshimura; M. Ogawara; H. Imachi; Y. Miyairi; Y.Yokoyama; Y. Miyabara; Y. Takahashi; Y. Takano
Goldschmidt 2024, Aug. 2024, Not invitedProducer or Consumer: Nitrogen Acquisition Strategies of DPANN in Deep Subsurface Habitats
Hiroki Nishimura; Atsushi Urai; Naoto F. Ishikawa; Yohei Matsui; Hiroyuki Imachi; Miyuki Ogawara; Nanako O. Ogawa; Kazuya Miyakawa; Yosuke Miyairi; Yusuke Yokoyama; Yoshio Takahashi; Yohey Suzuki; Naohiko Ohkouchi; Yoshinori Takano
AbSciCon 2024, May 2024, Not invitedInsights from multi-depth investigation: methane-related subsurface biosphere inhabiting the sedimentary layer at the intersection of tectonic lines.
Hiroki Nishimura; Atsushi Urai; Yohei Matsui; Toshihiro Yoshimura; Miyuki Ogawara; Hiroyuki Imachi; Yosuke Miyairi; Yusuke Yokoyama; Yuichi Miyabara; Yoshio Takahashi; Yoshinori Takano
JpGU Meeting 2024, May 2024, Not invitedInsights of the aquatic ecosystem in Lake Suwa using compound-specific isotope ratio analysis
Atsushi URAI; Yoshinori Takano; Naoto F. Ishikawa; Nanako O. Ogawa; Hiroaki Tatsuno; Satoe Kasahara; Yuichi Miyabara; Naohiko Ohkouchi
JpGU Meeting 2024, May 2024, Not invited有機リン添加による藍藻のメタン生成機構の解明
金馬直也; 岩田拓記; 浦井暖史; 朴虎東
日本陸水学会甲信越支部会 第49 回研究発表会, Dec. 2023, Not invitedセルリーApium graveolens L.によるラン藻Microcystis aeruginosa に対する抑制物質の探索
小野ひなた; 浦井暖史; 二木功子; 朴虎東
日本陸水学会甲信越支部会 第49 回研究発表会, Dec. 2023, Not invitedResponses of Methanogenesis in Eutrophic Lake Sediment to Different Autochthonous Organic Matter Additions
Yang Chun Je; Hiroki Iwata; Ho-dong Park; Yuichi Miyabara; Atsushi Urai; Masayuki Itoh; Yoshinori Takano
AsiaFlux 2023, Nov. 2023, Not invitedInsights of the food web in freshwater lake using radiocarbon measurements
A. Urai; Y. Takano; Y. Matsui; N.F. Ishikawa; Y. Miyairi; Y. Yokoyama; Y. Miyabara; N. Ohkouchi
⽇本地球化学会 第70回年会, Sep. 2023, InvitedDeep biosphere at the intersection of Itoigawa-Shizuoka Tectonic Line and Median Tectonic Line.
H. Nishimura; A. Urai; Y. Matsui; Y. Miyabara; Y. Takahashi; Y. Takano
⽇本地球化学会 第70回年会, Aug. 2023, Not invitedInsights of the interaction between surface and deep sub-surface hydrosphere using radiocarbon measurements ○Atsushi Urai1,2
Atsushi Urai
第40回日本有機地球化学シンポジウム（伊都大会）, Aug. 2023, InvitedImpacts between deep carbon and hydrosphere in a fault lake (Lake Suwa) : 14C-isoscape approach
Atsushi URAI; Yoshinori Takano; Yohei Matsui; Hiroki Iwata; Yosuke Miyairi; Yusuke Yokoyama; Yuichi Miyabara; Naohiko Ohkouchi; Ho-Dong Park
JpGU Meeting 2023, May 2023, Not invited異なる自生性有機物の添加に対する富栄養湖堆積物中のメタン生成応答の違い
Yang Chun Je; 岩田拓記; 朴虎東; 宮原裕一; 伊藤雅之; 浦井暖史; 高野淑識
日本農業気象学会2023年全国大会, Mar. 2023, Not invitedApplication of methane-specific stable carbon and radiocarbon isotope measurements (δ13C & Δ14C) for ecology and biogeochemistry
Atsushi Urai; Yoshinori Takano; Yohei Matsui; Nanako O. Ogawa; Yusuke Yokoyama; Naohiko Ohkouchi
INTERNATIONAL SYMPOSIUM ON ISOTOPE PHYSIOLOGY, ECOLOGY, AND GEOCHEMISTRY, Sep. 2022, Not invited断層湖堆積盆から湧出する深部メタンの起源と表層生態系への影響：糸魚川静岡構造線と中央構造線の交点のカーボンサイクル
浦井暖史; 高野淑識; 松井洋平; 岩田拓記; 宮入陽介; 横山祐典; 宮原裕一; 大河内直彦; 朴虎東
2022年日本地球惑星科学連合大会, May 2022, Invited,アオコ添加に対する富栄養湖堆積物中のメタン生成の応答
Yang Chun Jet; 岩田拓記; 朴虎東; 宮原裕一; 伊藤雅之; 高野淑識; 浦井暖史
日本農業気象学会2022年全国大会, Mar. 2022淡水湖表層水でのメタン生成プロセスの探索
浦井暖史; 松下慎; 朴虎東; 井町寛之; 小河原美幸; 岩田拓記; 金子雅紀; 小川奈々子; 大河内直彦; 高野淑識
第38回有機地球化学シンポジウム札幌大会, Nov. 2021, Not invitedOngoing archaeal methanogenesis in an organic- and iodine-rich deep aquifer: molecular evidence from coenzyme factor 430 and methane-specific radiocarbon measurements
Atsushi Urai; Yoshinori Takano; Naohiko Ohkouchi
Japan Geoscience Union Meeting 2021, Jun. 2021, Japan Geoscience Union, Not invitedDeep methane emission from the active fault lake on Itoigawa-Shizuoka Tectonic Lines: Impact and interaction between deep carbon and surface ecosystems.
A. Urai; Y. Takano; Y. Matsui; H. Iwata; Y. Miyairi; Y. Yokoyama; Y. Miyabara; H. D. Park; N. Ohkouchi
Conference of the geochemical society of Japan, Nov. 2020, Not invitedBiogeochemical and molecular approaches for methane cycle of surface and deep sub-surface origins on an active fault lake
Urai, A; Takano, Y; Matsushita, M; Imachi, H; Matsui, Y; Miyairi, Y; Iwata, H; Park, H. D; Yokoyama,Y; Ohkouchi, N
The geochemical society of Japan, Sep. 2019, Not invitedDeep methanogenesis and iodine-rich aquifer: Insight from organic geochemical approach
Urai, A; Takano, Y; Imachi, H; Ishii, S; Matsui, Y; Ogawara, M; Miyairi, Y; Ogawa, N. O; Yoshimura, T; Inagaki, F; Yokoyama, Y; Park, H. D; Murai, D; Kawano, K; Ohkouchi, N
29th International Meeting on Organic Geochemistry (IMOG), Sep. 2019, Not invitedSearch for microbial CH4 production processes in lake sediments and surface water associated with cyanobacterial bloom
Matsushita, M; Takano, Y; Imachi, H; Urai, A; Park, H.D; Iwata, H; Ohkouchi, N
JpGU Meeting 2019, May 2019, Not invitedDynamisms and characteristics of dissolved organic matter (DOM) in deep aquifer: A scope for deep biosphere
Urai, A.; Takano, Y.; Ohkouchi, N
JpGU Meeting 2019, May 2019, Not invitedDeep methanogenesis and iodine aquifer: an organic geochemical approach
A. Urai; Y. Takano; S. Ishii; H. Imachi; Y. Matsui; Y. Miyairi; N.O. Ogawa; T. Yoshimura; F. Inagaki; Y. Yokoyama; D. Murai; K. Kawano; N. Ohkouchi
第65回日本地球化学会年会, Sep. 2018, Not invitedCharacterization of Sterols in Dissolved Organic Matter
Urai, A; Takahahi, K; Chikaraishi, Y; Fukushima, K
第36回日本有機地球化学シンポジウム, Aug. 2018, Not invited農薬モニタリング評価における河川調査法の一考察
内田成人; 土屋秀平; 浦井暖史; 北條敏彦
日本農薬学会第40回大会, Mar. 2015, Not invitedChemical characterization of sterol composition dissolved in freshwater lakes in Japan.
Urai, A; Takahashi, K; Fukuhshima, K; Chikaraishi, Y
26th International Meetings on Organic Geochemistry, 206, Sep. 2013, Not invitedChemical Characterization of Dissolved Sterols in Lakes Water
Urai, ,A; Takahashi, K; Fukushima, K
第31回日本有機地球化学シンポジウム, Aug. 2013, Not invitedCharacteristic of Stigmasterol in Dissolved Organic Matter
Urai, ,A; Umeyama, M; Takahashi, K; Fukushima, K
第30回日本有機地球化学シンポジウム, Aug. 2012, Not invitedCourses
Affiliated academic society
Research Themes
- 炭素の流れの多角的評価を基にした浅い湖の富栄養化に伴うメタン放出応答の解析
科学研究費助成事業, 日本学術振興会, 基盤研究(A)
信州大学
01 Apr. 2025 - 31 Mar. 2030 - Biogeochemistry Camp 2025（生物地球化学 夏の学校2025）
鳥居・井上基金助成, 日本地球化学会
Apr. 2025 - Sep. 2025 - 断層湖における水圏メタン酸化プロセスの定量的評価：放射性炭素から読み解くメタンの行方
学術研究助成, 公益財団法人アサヒグループ財団, 環境・サステナビリティ部門
Apr. 2024 - Mar. 2025 - Latitudinal differences of methane emission from lakes -from tropical to temperate-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Fund for the Promotion of Joint International Research (International Collaborative Research)
University of Hyogo
08 Sep. 2023 - 31 Mar. 2026 - 深部メタンを起点とした表層水圏におけるメタン酸化プロセスと水圏生態系への影響評価
若手スタートアップ奨励金, 日本地球化学会
Sep. 2023 - Sep. 2024 - メタンを起点とする湖沼生態系：放射性炭素を用いた新しい評価法
科学研究費助成事業 特別研究員奨励費, 日本学術振興会, 特別研究員奨励費
国立研究開発法人海洋研究開発機構
28 Apr. 2021 - 31 Mar. 2024
Media Coverage
