教授
工藤 勲
くどう いさお
工藤 勲
くどう いさお
- 海洋生物資源科学部門
- 海洋生物科学科
- 海洋生物生産学コース(環境科学院)
オフィス
環境科学院(札幌)A403
メール
ikudo◎fish.hokudai.ac.jp
※「◎」を「@」に変更
電話
011-706-2321
- 研究課題
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(1) 亜寒帯域における基礎生産過程と栄養塩動態に関する研究 (2) 持続的二枚貝養殖のための貧栄養化メカニズム解明と対策 (3) 植物プランクトンによる窒素の利用と硝化プロセスに関する研究
- 代表的な業績
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Aya, F.A. and Kudo, I. (2017) Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis (Jay, 1857). Isotopes in Environmental & Health Studies, 53, 80-90.Kakuta, E. and Kudo, I. (2016) Significant contribution of lytic mortality to bacterial production and DOC cycles in Funka Bay, Japan. Journal of Oceanography, 72, 177-187. DOI: 10.1007/s10872-015-0316-2 Kudo, I., Hisatoku, T., Yoshimura, T. and Maita, Y. (2015) Primary productivity and nitrogen assimilation with identifying the contribution of urea in Funka. Bay, Japan. Estuarine, Coastal and Shelf Science, 158: 12-19. Agboola, J. I. and Kudo, I. (2014) Different contributions of riverine and oceanic nutrient fluxes supporting primary production in Ishikari Bay. Continental Shelf Research, 88: 140-150. 工藤 勲・吉村真理・橋岡香織・足立敏成・磯田 豊 (2014) 陸奥湾における貧栄養化と二枚貝養殖の関連性. 沿岸海洋研究、52: 83-92. 岩波秀晃・和田知之・坂本和佳・工藤 勲・知北和久 (2013) 流出特性と土地利用形態に基づく十勝川水系の栄養塩供給機構. 日本水文科学会誌、43: 3-24. Taira, Y., Uchimiya, M. and Kudo, I. (2009) Virus dilution for simultaneously estimating viral lysis and protozoan grazing on bacterial mortality. Marine Ecology Progress Series, 379: 23-32. 工藤 勲・フローラン アヤ・高田兵衛・小林直人 (2011) オホーツク海沿岸域の海洋構造と生物生産. 沿岸海洋研究、49: 13-21. Kudo, I., Noiri, Y., Cochlan, W.P., Suzuki, K., Aramaki, T., Ono, T. and Nojiri, Y. (2009) Primary productivity, bacterial productivity and nitrogen uptake in response to iron enrichment during the SEEDS II. Deep-Sea Research II, 56: 2755-2766. Tsuda, A., Takeda, S., Saito, H., Nishioka, J., Kudo, I. and others (39) (2007) Evidence for the grazing hypothesis: Grazing reduces phytoplankton responses of the HNLC ecosystem to iron enrichment in the western subarctic Pacific (SEEDS II). Journal of Oceanography, 63: 983-994. Kudo, I., Yoshimura, T., Lee, C.W., Yanada, M. and Maita, Y. (2007) Nutrient regeneration at bottom after a massive spring bloom in a subarctic coastal environment, Funka Bay, Japan. Journal of Oceanography, 63: 791-801. Kudo, I., Kokubun, H. and Matsunaga, K. (1996) Chemical fractionation of phosphorus and cadmium in the marine diatom Phaeodactylum tricornutum. Marine Chemistry, 52: 221-231. Kudo, I., Noiri, Y., Nishioka, J., Taira, Y., Kiyosawa, H. and Tsuda, A. (2006) Phytoplankton community response to Fe and temperature gradients in the NE (SERIES) and NW (SEEDS) subarctic Pacific Ocean. Deep-Sea Research II, 53: 2201-2213. Kudo, I., Noiri, Y., Imai, K., Nojiri, Y., Nishioka, J. and Tsuda, A. (2005) Primary production and nitrogenous nutrients assimilation dynamics during the subarctic Pacific Iron Experiment for Ecosystem Dynamics Study (SEEDS). Progress in Oceanography, 64: 207-221. Boyd, P., Law, C.S., Wong, C.S., Nojiri, Y., Tsuda, A., Levasseur, M., Kudo, I. (22th, alphabethic order) (2004) The decline and fate of an iron-induced subarctic phytoplankton bloom. Nature, 428: 549-553. Tsuda, A., Takeda, S., Saito, H., Nishioka, J., Nojiri, Y., Kudo, I. and others (18) (2003) A mesoscale iron enrichment in the western subarctic Pacific induces a large centric diatom bloom. Science, 300: 958-961. Kudo, I. (2003) Change in the Si:N ratio in diatoms responding to the ambient ratio and growth phase. Marine Biology, 143: 39-46. Kudo, I., Miyamoto, M., Noiri, Y. and Maita, Y. (2000) Combined effects of temperature and Fe on the growth and physiology of the marine diatom, Phaeodactylum tricornutum (Bacillariophyceae). Journal of Phycology, 36,: 1096-1102. 工藤 勲・芳村 毅(2000) 噴火湾における春季ブルームの一次生産とその行方.沿岸海洋研究、38: 47-54. Kudo, I., Yoshimura, T., Yanada, M. and Matsunaga, K. (2000). Exhaustion of nitrate terminates a phytoplankton bloom in Funka Bay, Japan: change in SiO4:NO3 consumption rate during the bloom. Marine Ecology Progress Series, 193: 45-51. Kudo, I. and Matsunaga, K. (1999) Environmental factors affecting the occurrence and production of the spring phytoplankton bloom in Funka Bay, Japan. Journal of Oceanography, 55: 505-513. Kudo, I. and Matsunaga, K. (1998) Behavior of Cu, Ni and Cd during nutrient depletion in a spring bloom in Funka Bay. Journal of Oceanography, 54: 619-627. Kudo, I. and Harrison, P.J. (1997) Effect of iron on the marine cyanobacterium Synechococcus grown on different N sources and irradiances. Journal of Phycology, 33: 232-240. Kudo, I., Kokubun, H. and Matsunaga, K. (1996) Cadmium in the southwest Pacific Ocean-two factors significantly affecting Cd-PO4 relation in the ocean. Marine Chemistry, 54: 55-67.
- 担当授業
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学部 海洋学入門(分担) 化学海洋学(分担) 海洋基礎生産学(分担) 海洋保全学(分担) 大学院 海洋生物環境学基礎論 海洋生物圏環境科学特論I
- 略歴
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1982年 北海道大学水産学部 卒業 1987年 北海道大学大学院水産学研究科博士課程 単位取得退学 1987年 北海道大学水産学部 文部教官助手 1994年~1995年 カナダ ブリティッシュ・コロンビア大学 文部省在外研究員 2000年 北海道大学大学院水産科学研究科 助教授 2005年 北海道大学大学院水産科学研究院(大学院環境科学院担当) 助教授 2016年 北海道大学大学院水産科学研究院 教授
- 受賞
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2001年 日本海洋学会日高論文賞
- 社会貢献
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日本海洋学会沿岸海洋研究会出版部長 北海道大学生協理事
- 教員からのメッセージ
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海を対象に研究することは、実際に船に乗ったり、磯に出向いたりして、フィールド調査に出かけることから始まります。「なぜなんだろう」という科学的な疑問を解明することが研究です。実際の研究は、そのアプローチについての作業仮説を立て、科学的な手法を駆使し調査を行い、採取した試料を分析し、その結果について教員、研究室の仲間と議論を繰り返すことで行われます。得られた研究成果は、研究室内での発表会、関連学会の全国大会等で発表します。さらには、論文という形で公表されます。自分で行った研究成果を人前で発表することは、緊張しますが、終わった後の達成感はひとしおです。あなたも未知なる海の疑問を解明してみませんか。
KUDO Isao
- Professor of Marine Environmental Science
- Division of Marine Bioresource and Environmental Science
- Department of Marine Biology
Office location
A403 Graduate School of Environmental Science (Sapporo)
Email
ikudo[at]fish.hokudai.ac.jp
※ change [at] to @
Phone
+81-11-706-2321
- Research Areas
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Primary production and nutrient interaction in the subarctic Pacific Ocean. Oligotrophication mechanisms and its solution for sustainable bivalve culture. Marine Biogeochemistry especially nitrogen utilization and nitrification process in the ocean
- Representative publications
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Aya, F.A. and Kudo, I. (2017) Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis (Jay, 1857). Isotopes in Environmental & Health Studies, 53, 80-90. Kakuta, E. and Kudo, I. (2016) Significant contribution of lytic mortality to bacterial production and DOC cycles in Funka Bay, Japan. Journal of Oceanography, 72, 177-187. DOI: 10.1007/s10872-015-0316-2 Kudo, I., Hisatoku, T., Yoshimura, T. and Maita, Y. (2015) Primary productivity and nitrogen assimilation with identifying the contribution of urea in Funka. Bay, Japan. Estuarine, Coastal and Shelf Science, 158: 12-19. Agboola, J. I. and Kudo, I. (2014) Different contributions of riverine and oceanic nutrient fluxes supporting primary production in Ishikari Bay. Continental Shelf Research, 88: 140-150. Taira, Y., Uchimiya, M. and Kudo, I. (2009) Virus dilution for simultaneously estimating viral lysis and protozoan grazing on bacterial mortality. Marine Ecology Progress Series, 379: 23-32. Kudo, I., Noiri, Y., Cochlan, W.P., Suzuki, K., Aramaki, T., Ono, T. and Nojiri, Y. (2009) Primary productivity, bacterial productivity and nitrogen uptake in response to iron enrichment during the SEEDS II. Deep-Sea Research II, 56: 2755-2766. Tsuda, A., Takeda, S., Saito, H., Nishioka, J., Kudo, I. and others (39) (2007) Evidence for the grazing hypothesis: Grazing reduces phytoplankton responses of the HNLC ecosystem to iron enrichment in the western subarctic Pacific (SEEDS II). Journal of Oceanography, 63: 983-994. Kudo, I., Yoshimura, T., Lee, C.W., Yanada, M. and Maita, Y. (2007) Nutrient regeneration at bottom after a massive spring bloom in a subarctic coastal environment, Funka Bay, Japan. Journal of Oceanography, 63: 791-801. Kudo, I., Kokubun, H. and Matsunaga, K. (1996) Chemical fractionation of phosphorus and cadmium in the marine diatom Phaeodactylum tricornutum. Marine Chemistry, 52: 221-231. Kudo, I., Noiri, Y., Nishioka, J., Taira, Y., Kiyosawa, H. and Tsuda, A. (2006) Phytoplankton community response to Fe and temperature gradients in the NE (SERIES) and NW (SEEDS) subarctic Pacific Ocean. Deep-Sea Research II, 53: 2201-2213. Kudo, I., Noiri, Y., Imai, K., Nojiri, Y., Nishioka, J. and Tsuda, A. (2005) Primary production and nitrogenous nutrients assimilation dynamics during the subarctic Pacific Iron Experiment for Ecosystem Dynamics Study (SEEDS). Progress in Oceanography, 64: 207-221. Boyd, P., Law, C.S., Wong, C.S., Nojiri, Y., Tsuda, A., Levasseur, M., Kudo, I. (22th, alphabethic order) (2004) The decline and fate of an iron-induced subarctic phytoplankton bloom. Nature, 428: 549-553. Tsuda, A., Takeda, S., Saito, H., Nishioka, J., Nojiri, Y., Kudo, I. and others (18) (2003) A mesoscale iron enrichment in the western subarctic Pacific induces a large centric diatom bloom. Science, 300: 958-961. Kudo, I. (2003) Change in the Si:N ratio in diatoms responding to the ambient ratio and growth phase. Marine Biology, 143: 39-46. Kudo, I., Miyamoto, M., Noiri, Y. and Maita, Y. (2000) Combined effects of temperature and Fe on the growth and physiology of the marine diatom, Phaeodactylum tricornutum (Bacillariophyceae). Journal of Phycology, 36,: 1096-1102. Kudo, I., Yoshimura, T., Yanada, M. and Matsunaga, K. (2000). Exhaustion of nitrate terminates a phytoplankton bloom in Funka Bay, Japan: change in SiO4:NO3 consumption rate during the bloom. Marine Ecology Progress Series, 193: 45-51. Kudo, I. and Matsunaga, K. (1999) Environmental factors affecting the occurrence and production of the spring phytoplankton bloom in Funka Bay, Japan. Journal of Oceanography, 55: 505-513. Kudo, I. and Matsunaga, K. (1998) Behavior of Cu, Ni and Cd during nutrient depletion in a spring bloom in Funka Bay. Journal of Oceanography, 54: 619-627. Kudo, I. and Harrison, P.J. (1997) Effect of iron on the marine cyanobacterium Synechococcus grown on different N sources and irradiances. Journal of Phycology, 33: 232-240. Kudo, I., Kokubun, H. and Matsunaga, K. (1996) Cadmium in the southwest Pacific Ocean-two factors significantly affecting Cd-PO4 relation in the ocean. Marine Chemistry, 54: 55-67.