Cryptic population structure of small toxigenic marine dinoflagellates in Southeast Asian coasts

• Project/Area Number: 19KK0160
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 40:Forestry and forest products science, applied aquatic science, and related fields
• Research Institution: The University of Tokyo
• Principal Investigator: 岩滝 光儀 東京大学, 大学院農学生命科学研究科(農学部), 准教授 (50423645)
• Co-Investigator(Kenkyū-buntansha): 高橋 和也 東京大学, 大学院農学生命科学研究科(農学部), 特任研究員 (00821109) ; 鈴木 敏之 国立研究開発法人水産研究・教育機構, 水産技術研究所(長崎), 部門長 (70371804)
• Project Period (FY): 2019-10-07 – 2024-03-31
• Project Status: Completed (Fiscal Year 2023)
• Budget Amount: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000); Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
• Keywords: 赤潮 / 貝毒 / 渦鞭毛藻 / 系統分類 / 微細構造 / カレニア科 / アンフィドマ科 / 東南アジア / 有害藻類 / 毒分析

Outline of Research at the Start

東南アジア沿岸域では小型渦鞭毛藻による有害赤潮と漁業被害が頻発し，この対策が喫緊の課題となっている。本研究ではこれまで調査対象外となっていた小型種を選択的に検出することで，近年有害赤潮を形成するようになったカレニア科，そして出現情報が全くないアンフィドマ科渦鞭毛藻を対象に，種組成，毒組成，個体群分布を明らかにする。東南アジアにおける有害藻類研究者の連携体制を強化しながら，潜在する小型有害渦鞭毛藻の種組成と強毒個体群の分布海域を把握することで，被害対策に資する学術基盤を構築する。

Outline of Annual Research Achievements

アジア沿岸域に出現する小型有害渦鞭毛藻カレニア科とアンフィドマ科を主対象に，出現種の形態形質と系統的位置を明らかにし，種や個体群レベルでの分布把握を目的として調査を継続した。東南アジア沿岸域における現地合同調査はフィリピンで4回実施した。観察と培養株作成作業を現地研究者と合同で行い，その際に提供した採集器具を使用し，現地研究者に以後の試料採集を依頼することで培養株の作成を進めた。有害赤潮を形成するカレニア科渦鞭毛藻ではフィリピンでKarenia mikimotoi等の出現を確認し，作成した培養株を維持している。分子系統解析に基づいて同定した小型種Karlodinium ballantinumについては，フィリピンにおける出現等に関する論文を投稿している。本種はKarlodinium veneficum等の近縁種との形態的識別が困難であるため，ここで得た遺伝的情報はフィリピン産個体群の分子同定に用いることができる。脂溶性貝毒を生産するアンフィドマ科渦鞭毛藻では，マレーシアとフィリピンより作成した培養株がAmphidoma languidaに近縁な未記載種であることが確認できたため，電子顕微鏡による微細構造の観察と毒分析を実施し，新種としての記載論文を投稿した。延期されていた有害藻類に関する国際学会が11月に広島で開催されたため，マレーシアとフィリピンから海外研究協力者を招聘し，サイドミーティングでカレニア科の出現状況に関する情報を提供するとともに，東南アジア各国から参加した海外研究協力者と有害藻類の出現情報を共有した。

Research Products

• [Int'l Joint Research] インドネシア国立研究革新庁海洋学研究センター(インドネシア)
• [Int'l Joint Research] マラヤ大学/マレーシア大学サラワク校(マレーシア)
• [Int'l Joint Research] フィリピン大学ディリマン校/フィリピン水産資源局/セントラルルソン州立大学(フィリピン)
• [Int'l Joint Research] チュラロンコン大学(タイ)
• [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)
• [Int'l Joint Research]
• [Int'l Joint Research] インドネシア科学院海洋学研究センター(インドネシア)
• [Int'l Joint Research] マラヤ大学/マレーシア大学サラワク校(マレーシア)
• [Int'l Joint Research] フィリピン大学ディリマン校/フィリピン水産資源局/セントラルルソン州立大学(フィリピン)
• [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)
• [Int'l Joint Research] ロシア科学アカデミー極東支部海洋生物学研究所(ロシア連邦)
• [Int'l Joint Research]
• [Int'l Joint Research] インドネシア科学院海洋学研究センター(インドネシア)
• [Int'l Joint Research] マラヤ大学(マレーシア)
• [Int'l Joint Research] フィリピン大学ディリマン校/フィリピン水産資源局/セントラルルソン州立大学(フィリピン)
• [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)
• [Int'l Joint Research] ロシア科学アカデミー極東支部海洋生物学研究所(ロシア連邦)
• [Int'l Joint Research]
• [Int'l Joint Research] インドネシア科学院海洋学研究センター(インドネシア)
• [Int'l Joint Research] マラヤ大学/マレーシア大学サラワク校(マレーシア)
• [Int'l Joint Research] フィリピン大学ディリマン校/フィリピン水産資源局/フィリピン水産資源開発研究所(フィリピン)
• [Int'l Joint Research] チュラロンコン大学(タイ)
• [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)
• [Int'l Joint Research]
• [Int'l Joint Research] インドネシア科学院海洋学研究センター(インドネシア)
• [Int'l Joint Research] マラヤ大学/マレーシア大学サラワク校(マレーシア)
• [Int'l Joint Research] フィリピン大学ディリマン校/フィリピン水産資源局/フィリピン水産資源開発研究所(フィリピン)
• [Int'l Joint Research] チュラロンコン大学(タイ)
• [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)
• [Int'l Joint Research]
• [Journal Article] Comparative effects of temperature and salinity on growth of four harmful Chattonella spp. (Raphidophyceae) from tropical Asian waters (2023)
  • Author(s): Lum Wai Mun、Sakamoto Setsuko、Yuasa Koki、Takahashi Kazuya、Kuwata Koyo、Kodama Taketoshi、Katayama Tomoyo、Leaw Chui Pin、Lim Po Teen、Takahashi Kazutaka、Iwataki Mitsunori
  • Journal Title: Frontiers in Marine Science Volume: 10 Pages: 1-10
  • DOI: 10.3389/fmars.2023.1127871
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Harmful Algae in Indonesia: Small in Size, Big in Effect (2023)
  • Author(s): Muawanah、Bayu Intan Mariana D.、Boudin Elyse、Thoha Hikmah、Rachman Arief、Sianturi Oksto Ridho、Sidabutar Tumpak、Iwataki Mitsunori、Takahashi Kazuya、Avarre Jean-Christophe、Carcaillet Fr?d?rique、Masseret Estelle
  • Journal Title: Frontiers for Young Minds Volume: 11 Pages: 858326-858326
  • DOI: 10.3389/frym.2023.858326
  • Open Access / Int'l Joint Research
• [Journal Article] Azaspiracid accumulation in Japanese coastal bivalves and ascidians fed with Azadinium poporum producing azaspiracid-2 as the dominant toxin component (2023)
  • Author(s): Ozawa Mayu、Uchida Hajime、Watanabe Ryuichi、Matsushima Ryoji、Oikawa Hiroshi、Takahashi Kazuya、Iwataki Mitsunori、Suzuki Toshiyuki
  • Journal Title: Toxicon Volume: 226 Pages: 107069-107069
  • DOI: 10.1016/j.toxicon.2023.107069
  • Peer Reviewed
• [Journal Article] Dinoflagellate Cyst Distribution in Relation to the Sediment Composition and Grain Size in the Coastal Area of Pangkajene, South Sulawesi, Indonesia (2022)
  • Author(s): Rachman Arief、Thoha Hikmah、Intan Mariana Destila Bayu、Sianturi Oksto Ridho、Witasari Yunia、Wibowo Singgih Prasetyo Adi、Iwataki Mitsunori
  • Journal Title: ILMU KELAUTAN: Indonesian Journal of Marine Sciences Volume: 27 Issue: 2 Pages: 111-123
  • DOI: 10.14710/ik.ijms.27.2.111-123
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Description of two new species Chattonella tenuiplastida sp. nov. and Chattonella malayana sp. nov. (Raphidophyceae) from South China Sea, with a report of wild fish mortality (2022)
  • Author(s): Lum Wai Mun、Lim Hong Chang、Lau Winnie Lik Sing、Law Ing Kuo、Teng Sing Tung、Benico Garry、Leong Sandric Chee Yew、Takahashi Kazuya、Gu Haifeng、Lirdwitayaprasit Thaithaworn、Leaw Chui Pin、Lim Po Teen、Iwataki Mitsunori
  • Journal Title: Harmful Algae Volume: 118 Pages: 102322-102322
  • DOI: 10.1016/j.hal.2022.102322
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A massive bloom of Karenia species (Dinophyceae) off the Kamchatka coast, Russia, in the fall of 2020 (2022)
  • Author(s): Orlova Tatiana Y.、Aleksanin Anatoly I.、Lepskaya Ekaterina V.、Efimova Kseniya V.、Selina Marina S.、Morozova Tatiana V.、Stonik Inna V.、Kachur Vasily A.、Karpenko Alexander A.、Vinnikov Kirill A.、Adrianov Andrey V.、Iwataki Mitsunori
  • Journal Title: Harmful Algae Volume: 120 Pages: 102337-102337
  • DOI: 10.1016/j.hal.2022.102337
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Morphological variation and phylogeny of Karenia selliformis (Gymnodiniales, Dinophyceae) in an intensive cold-water algal bloom in eastern Hokkaido, Japan (2022)
  • Author(s): Iwataki Mitsunori、Lum Wai Mun、Kuwata Koyo、Takahashi Kazuya、Arima Daichi、Kuribayashi Takanori、Kosaka Yuki、Hasegawa Natsuki、Watanabe Tsuyoshi、Shikata Tomoyuki、Isada Tomonori、Orlova Tatiana Yu.、Sakamoto Setsuko
  • Journal Title: Harmful Algae Volume: 114 Pages: 102204-102204
  • DOI: 10.1016/j.hal.2022.102204
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts (2021)
  • Author(s): G.M. Hallegraeff, D.M. Anderson, C. Belin, M.-Y.D. Bottein, E. Bresnan, M. Chinain, H. Enevoldsen, M. Iwataki, B. Karlson, C.H. McKenzie, I. Sunesen, G.C. Pitcher, P. Provoost, A. Richardson, L. Schweibold, P.A. Tester, C.L. Trainer, A.T. Yniguez, A. Zingone
  • Journal Title: Communications Earth & Environment Volume: 2 Issue: 1 Pages: 117-117
  • DOI: 10.1038/s43247-021-00178-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Complex profiles of azaspiracid analogues in two culture strains of Azadinium poporum (Amphidomataceae, Dinophyceae) isolated from Japanese coastal waters determined by LC-MS/MS (2021)
  • Author(s): M. Ozawa, H. Uchida, R. Watanabe, R. Matsushima, H. Oikawa, K. Takahashi, M. Iwataki and T. Suzuki
  • Journal Title: Toxicon Volume: 199 Pages: 145-155
  • DOI: 10.1016/j.toxicon.2021.06.010
  • Peer Reviewed
• [Journal Article] Thecal tabulation, body scale morphology and phylogeny of Heterocapsa philippinensis sp. nov. (Peridiniales, Dinophyceae) from the Philippines (2021)
  • Author(s): G. Benico, W.M. Lum, K. Takahashi, A.T. Yniguez and M. Iwataki
  • Journal Title: European Journal of Protistology Volume: 80 Pages: 125811-125811
  • DOI: 10.1016/j.ejop.2021.125811
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Morpho-molecular description of a new HAB species, Pseudocochlodinium profundisulcus gen. et sp. nov., and its LSU rRNA gene based genetic diversity and geographical distribution (2021)
  • Author(s): Z. Hu, N. Xu, H. Gu, Z. Chai, K. Takahashi, Z. Li, Y. Deng, M. Iwataki, K. Matsuoka and Y.Z. Tang
  • Journal Title: Harmful Algae Volume: 108 Pages: 102098-102098
  • DOI: 10.1016/j.hal.2021.102098
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Toxigenic strains of Azadinium poporum (Amphidomataceae, Dinophyceae) from Japan and Vietnam, with first reports of A. poporum (ribotype A) and A. trinitatum in Asian Pacific (2021)
  • Author(s): K. Takahashi, G. Benico, W.M. Lum, H. Uchida, M. Ozawa, H. Oikawa, T. Suzuki, N.V. Nguyen, D.V. Ha and M. Iwataki
  • Journal Title: Phycological Research Volume: 69 Issue: 3 Pages: 175-187
  • DOI: 10.1111/pre.12455
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The harmful unarmored dinoflagellate Karlodinium in Japan and Philippines, with reference to ultrastructure and micropredation of Karlodinium azanzae sp. nov. (Kareniaceae, Dinophyceae) (2020)
  • Author(s): G. Benico, K. Takahashi, W.M. Lum, A.T. Yniguez and M. Iwataki
  • Journal Title: Journal of Phycology Volume: 56 Issue: 5 Pages: 1264-1282
  • DOI: 10.1111/jpy.13030
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Morphology, ultrastructure and molecular phylogeny of the unarmoured dinoflagellate Kirithra sigma sp. nov. (Ceratoperidiniaceae, Dinophyceae) (2020)
  • Author(s): Z. Hu, Z. Li, Y. Deng, M. Iwataki, Z. Luo, J. Wang, Y. Sun, Z. Zhao, H. Gu, H.H. Shin and Y.Z. Tang
  • Journal Title: Phycologia Volume: 59 Issue: 5 Pages: 385-396
  • DOI: 10.1080/00318884.2020.1771660
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Over 30 years of HABs in Southeast Asia: what have we learned from records in the Philippines and Malaysia? (2020)
  • Author(s): A.T. Yniguez, P.T. Lim, C.P. Leaw, S.J. Jipanin, M. Iwataki, G. Benico and R.V. Azanza
  • Journal Title: Harmful Algae Volume: － Pages: 101776-101776
  • DOI: 10.1016/j.hal.2020.101776
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Harmful algal blooms and associated fisheries damage in East Asia: current status and trends in China, Japan, Korea and Russia (2020)
  • Author(s): S. Sakamoto, W.A. Lim, D. Lu, X. Dai, T. Orlova and M. Iwataki
  • Journal Title: Harmful Algae Volume: － Pages: 101787-101787
  • DOI: 10.1016/j.hal.2020.101787
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Morphological variation, ultrastructure, pigment composition and phylogeny of the star-shaped dinoflagellate Asterodinium gracile (Kareniaceae, Dinophyceae) (2019)
  • Author(s): G. Benico, K. Takahashi, W.M. Lum and M. Iwataki
  • Journal Title: Phycologia Volume: 58 Issue: 4 Pages: 405-418
  • DOI: 10.1080/00318884.2019.1601948
  • Peer Reviewed
• [Journal Article] Dactylodinium arachnoides sp. nov. (Borghiellaceae, Dinophyceae): a new marine dinoflagellate with a loop-shaped apical structure complex and tubular membranous extrusomes (2019)
  • Author(s): W.M. Lum, K. Takahashi, G. Benico, H. Takayama and M. Iwataki
  • Journal Title: Phycologia Volume: 58 Issue: 6 Pages: 661-674
  • DOI: 10.1080/00318884.2019.1658399
  • Peer Reviewed
• [Journal Article] Gertia stigmatica gen. et sp. nov. (Kareniaceae, Dinophyceae), a new marine unarmored dinoflagellate possessing the peridinin-type chloroplast with an eyespot (2019)
  • Author(s): K. Takahashi, G. Benico, W.M. Lum and M. Iwataki
  • Journal Title: Protist Volume: 170 Issue: 5 Pages: 125680-125680
  • DOI: 10.1016/j.protis.2019.125680
  • Peer Reviewed
• [Presentation] Morphology and phylogeny of Karlodinium zhouanum (Kareniaceae, Dinophyceae) and its first report in the Pacific side of the Philippines (2023)
  • Author(s): S.P.C. Esteban, G.A. Benico, K. Kuwata, M. Iwataki
  • Organizer: 7th National Symposium in Marine Science
• [Presentation] アジア太平洋に分布する有殻渦鞭毛藻Amphidoma 1種の形態と系統 (2023)
  • Author(s): 桑田向陽・Wai Mun Lum・高橋和也・Garry Benico・Po Teen Lim・内田肇・小澤眞由・渡邊龍一・松嶋良次・鈴木敏之・岩滝光儀
  • Organizer: 2023年日本ベントス学会・日本プランクトン学会合同大会
• [Presentation] 日本沿岸から単離したKarenia selliformisが産生する環状イミン分析 (2023)
  • Author(s): 内田肇・高橋和也・小澤眞由・沼野聡・渡邊龍一・松嶋良次・及川寛・岩滝光儀・鈴木敏之
  • Organizer: 2023年日本ベントス学会・日本プランクトン学会合同大会
• [Presentation] 北海道沿岸で大規模赤潮を引き起こしたKarenia selliformisの増殖は特定のバクテリアによって促進される (2023)
  • Author(s): 鈴木重勝・Noel Mary-Helene・岩滝光儀・恒松雄太・藤田雅紀・伊佐田智規・山口晴代・東博紀・越川海・河地正伸
  • Organizer: 日本植物学会第87回大会
• [Presentation] アジア太平洋沿岸域で有害赤潮を形成する海産微細藻類の系統分類と分布 (2023)
  • Author(s): 岩滝光儀・Wai Mun Lum・Garry Benico・桑田向陽・高橋和也
  • Organizer: 日本原生生物学会，日本寄生虫学会東日本支部，日本衛生動物学会東日本支部合同大会
  • Invited
• [Presentation] New records of three raphidophytes in Philippines: Taxonomic identification and phylogeographic insights (2023)
  • Author(s): S.P.C. Esteban, G.A. Benico, W.M. Lum, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Plastid molecular phylogeny of the unarmored dinoflagellate family Kareniaceae suggests multi-parallel haptophyte symbiosis (2023)
  • Author(s): K. Takahashi, G. Benico, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] New toxins and toxic species - and what about their names? -News from the IOC- taxonomic reference list group (2023)
  • Author(s): N. Lundholm, C. Churro, L. Escalera, S. Fraga, M. Hoppenrath, M. Iwataki, J. Larsen, K. Mertens, O. Moestrup, U. Tillmann, A. Zingone
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Bacterial effect on red tide formation caused by Karenia selliformis on the coast of Hokkaido, Japan (2023)
  • Author(s): S. Suzuki, M.-H. Noel, M. Iwataki, Y. Tsunematsu, M. Fujita, T. Isada, H. Yamaguchi, H. Higashi, H. Koshikawa, M. Kawachi
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Global socio-economic impacts from fish-killing algal blooms: A roadmap towards more effective management and mitigation (2023)
  • Author(s): G.M. Hallegraeff, D.M. Anderson, K. Davidson, F. Gianella, L. Guzman, P.J. Hansen, H. Hegaret, M. Iwataki, T.O. Larsen, L. MacKenzie, J. Mardones, J.E.J. Rensel
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Morphology, molecular phylogeny, and ichthyotoxicity of naked dinophytes Karlodinium species from Malaysia (2023)
  • Author(s): S.T. Teng, S.U.A. Chiba, A.H. Hanifah, S. Mohamad, I.K. Law, N. Abdullah, M. Iwataki, P.T. Lim, C.P. Leaw
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Different ecological niche adaptation of four harmful raphidophytes in Southeast Asia (2023)
  • Author(s): W.M. Lum, S. Sakamoto, K. Yuasa, K. Takahashi, K. Kuwata, C.P. Leaw, P.T. Lim, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Taxonomy and phylogeny of unarmored dinoflagellates of the family Kareniaceae isolated from Hokkaido, Japan (2023)
  • Author(s): K. Kuwata, W.M. Lum, K. Takahashi, G. Benico, D. Arima, S. Sakamoto, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Morpho-molecular characterization of a new non-toxigenic Amphidoma species from the Asian Pacific (2023)
  • Author(s): K. Kuwata, W.M. Lum, K. Takahashi, G. Benico, P.T. Lim, H. Uchida, M. Ozawa, R. Watanabe, R. Matsushima, T. Suzuki, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Species diversity of kareniacean dinoflagellates in the Philippines, including the detection of an undescribed Karlodinium species (2023)
  • Author(s): G. Benico, S. Esteban, K. Kuwata, K. Takahashi, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Morphology and phylogeny of a novel Scrippsiella species from Central Luzon, Philippines (2023)
  • Author(s): S.P.C. Esteban, G.A. Benico, K. Kuwata, M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Toxin analysis of Kareniaceae cultures isolated from the northern coastal waters in Japan (2023)
  • Author(s): H. Uchida, K. Yuasa, T. Shikata, M. Ozawa, S. Numano, R. Watanabe, R. Matsushima, H. Oikawa, K. Kuwata, W.M. Lum, K. Takahashi, M. Iwataki, T. Suzuki
  • Organizer: The 20th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Karenia selliformis and other kareniaceans in an intensive cold-water algal bloom in eastern Hokkaido, Japan in 2021 (2023)
  • Author(s): M. Iwataki
  • Organizer: The 20th International Conference on Harmful Algae, Workshop 02
  • Int'l Joint Research / Invited
• [Presentation] アンフィドマ科渦鞭毛藻Azadiniumの陸奥湾産1未記載種の系統，形態，毒生産 (2023)
  • Author(s): 桑田向陽・Wai Mun Lum・高橋和也・Benico Garry・内田肇・小澤眞由・松島良次・渡邊龍一・及川寛・鈴木敏之・岩滝光儀
  • Organizer: 日本藻類学会第47回大会
• [Presentation] ハプト藻葉緑体をもつ渦鞭毛藻の蛍光in situハイブリダイゼーション法に基づく細胞学的観察 (2023)
  • Author(s): 高橋和也・岩滝光儀
  • Organizer: 日本藻類学会第47回大会
• [Presentation] 2021年秋期に北海道沖で発生した大規模赤潮の謎を解く：自由生活性バクテリアが渦鞭毛藻の赤潮形成に及ぼす影響 (2023)
  • Author(s): 鈴木重勝・Mary-Helene Noel・岩滝光儀・恒松雄太・藤田雅紀・山口晴代・東博紀・越川海・河地正伸
  • Organizer: 日本藻類学会第47回大会
• [Presentation] Azadinium poporumの主要毒と分子系統 (2022)
  • Author(s): 内田肇・小澤眞由・高橋和也・渡邊龍一・松嶋良次・及川寛・岩滝光儀・鈴木敏之
  • Organizer: 令和4年度日本水産学会秋季大会
• [Presentation] 国内に生息する二枚貝およびマボヤにおけるアザスピロ酸の蓄積 (2022)
  • Author(s): 小澤眞由・内田肇・渡邊龍一・松嶋良次・及川寛・高橋和也・岩滝光儀・鈴木敏之
  • Organizer: 令和4年度日本水産学会秋季大会
• [Presentation] マトリョーシカはどこまで包む？渦鞭毛藻の三次葉緑体成立過程を示す細胞構造と系統の証拠 (2022)
  • Author(s): 高橋和也
  • Organizer: 日本植物学会第86回大会シンポジウム
  • Invited
• [Presentation] Morphology and phylogeny of kareniacean dinoflagellates recently formed marine harmful algal blooms in Asian Pacific (2022)
  • Author(s): M. Iwataki, W.M. Lum, K. Kuwata, K. Takahashi, G. Benico
  • Organizer: International Scientific Conference on Bien Dong 2022
  • Int'l Joint Research / Invited
• [Presentation] 2021年秋季道東赤潮原因種の形態と系統 (2022)
  • Author(s): 岩滝光儀・桑田向陽・Lum Wai Mun・高橋和也
  • Organizer: 水産海洋学会第51回北洋研究シンポジウム
  • Invited
• [Presentation] 日本沿岸におけるAzadinium poporumの主要なアザスピロ酸組成と分子系統 (2022)
  • Author(s): 内田肇・小澤眞由・高橋和也・渡邊龍一・松嶋良次・及川寛・鈴木敏之・岩滝光儀
  • Organizer: 東日本貝毒分科会
• [Presentation] Ultrastructure of a benthic suessiacean dinoflagellate from tidal regions in Japan (2022)
  • Author(s): W.M. Lum・K. Takahashi・T. Nishimura・M. Adachi・M. Iwataki
  • Organizer: 日本藻類学会第46回大会
• [Presentation] 無殻渦鞭毛藻カレニア科のハプト藻型葉緑体系統が示す多重並列共生 (2022)
  • Author(s): 高橋和也・G. Benico・岩滝光儀
  • Organizer: 日本藻類学会第46回大会
• [Presentation] 日本国内に生息するムラサキイガイにおける新奇下痢貝毒アザスピロ酸の蓄積能 (2022)
  • Author(s): 小澤眞由・内田肇・渡邊龍一・松嶋良次・及川寛・高橋和也・岩滝光儀・鈴木敏之
  • Organizer: 令和4年度日本水産学会春季大会
• [Presentation] 日本沿岸から分離したAzadinium poporum培養株におけるアザスピロ酸類縁体の複雑な毒組成 (2021)
  • Author(s): 小澤眞由・内田肇・渡邊龍一・松嶋良次・及川寛・高橋和也・岩滝光儀・鈴木敏之
  • Organizer: 令和3年度日本水産学会秋季大会
• [Presentation] Taxonomy and phylogeny of unarmored dinoflagellates in the Kareniaceae found from Asian Pacific (2021)
  • Author(s): M. Iwataki, B. Garry, T. Kazuya, W.M. Lum
  • Organizer: 19th International Conference on Harmful Algae
  • Int'l Joint Research / Invited
• [Presentation] Are harmful marine microalgal blooms and their societal impacts increasing? A 30 year global data analysis (2021)
  • Author(s): M. Hallegraeff, D.M. Anderson, C. Belin, M.-Y.D. Bottein, E. Bresnan, M. Chinain, H. Enevoldsen, M. Iwataki, B. Karlson, C.H. McKenzie, I. Sunesen, G.C. Pitcher, P. Provoost, A. Richardson, L. Schweibold, P.A. Tester, C.L. Trainer, A.T. Yniguez, A. Zingone
  • Organizer: 19th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Morphology, pigment composition and phylogeny of an unarmored dinoflagellate Gertia sp., a peridinin-containing species in the Kareniaceae (2021)
  • Author(s): K. Takahashi, W.M. Lum, M. Iwataki
  • Organizer: 19th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] Morphology and phylogeny of an undescribed suessiacean dinoflagellate from a tidal pool in Japan (2021)
  • Author(s): W.M. Lum, K. Takahashi, T. Nishimura, M. Adachi, M. Iwataki
  • Organizer: 19th International Conference on Harmful Algae
  • Int'l Joint Research
• [Presentation] 日本沿岸から分離したAzadinium poporumの培養株が産生するアザスピロ酸 (2021)
  • Author(s): 小澤眞由・内田肇・渡邊龍一・松嶋良次・及川寛・高橋和也・岩滝光儀・鈴木敏之
  • Organizer: 東日本貝毒分科会
• [Presentation] 2021年秋季に発生した北海道東部太平洋岸カレニア属赤潮の発生状況と漁業被害の概要 (2021)
  • Author(s): 坂本節子・北辻さほ・紫加田知幸・中山奈津子・湯浅光貴・長谷川夏樹・渡辺剛・黒田寛・伊佐田智規・有馬大地・栗林貴範・岩滝光儀
  • Organizer: 東日本貝毒分科会
• [Presentation] 2021年秋季に北海道東部太平洋岸で発生した赤潮に観察された無殻渦鞭毛藻Karenia 3種の形態と系統 (2021)
  • Author(s): 岩滝光儀・W.M. Lum・桑田向陽・高橋和也・有馬大地・栗林貴範・長谷川夏樹・渡辺剛・坂本節子・伊佐田智規
  • Organizer: 東日本貝毒分科会
• [Presentation] Recent advances in HABs- What are the causative species? (2021)
  • Author(s): M. Iwataki
  • Organizer: UN Ocean Decade Kickoff Conference for the Western Pacific and its Adjacent Areas
  • Int'l Joint Research / Invited
• [Presentation] 祖先的渦鞭毛藻1種にみられたハプト藻型葉緑体獲得 (2021)
  • Author(s): 高橋和也・岩滝光儀
  • Organizer: 日本藻類学会第45回大会
• [Presentation] 給餌実験によるアサリのアザスピロ酸-2の蓄積 (2021)
  • Author(s): 小澤眞由・内田肇・渡邊龍一・松嶋良次・及川寛・高橋和也・岩滝光儀・鈴木敏之
  • Organizer: 令和3年度日本水産学会春季大会
• [Presentation] 日本に出現する有殻渦鞭毛藻Azadiniumの系統と分布 (2021)
  • Author(s): 岩滝光儀・高橋和也・W.M. Lum・G. Benico・小澤眞由・内田肇・及川寛・鈴木敏之
  • Organizer: 令和3年度日本水産学会春季大会
• [Presentation] Morphology of kareniacean dinoflagellates occurred in Japanese coast (2020)
  • Author(s): M. Iwataki, K. Takahashi, G. Benico, W.M. Lum
  • Organizer: Harmful Algal Blooms in the North Pacific: Current Dynamics and Impact to Marine Ecosystems
  • Int'l Joint Research / Invited
• [Presentation] AZA2標準品の製造に向けたAzadinium poporumの培養条件の検討 (2020)
  • Author(s): 小澤眞由・内田肇・渡邊龍一・松嶋良次・及川寛・高橋和也・岩滝光儀・鈴木敏之
  • Organizer: 令和2年度日本水産学会春季大会
• [Presentation] 日本沿岸から検出したアンフィドマ科渦鞭毛藻の系統と出現海域 (2020)
  • Author(s): 岩滝光儀・高橋和也・Garry Benico・Lum Wai Mun・小澤眞由・内田肇・及川寛・鈴木敏之
  • Organizer: 令和2年度日本水産学会春季大会
• [Presentation] ハプト藻型葉緑体をもつ狭義のGymnodinium系統群の渦鞭毛藻1種の微細構造と系統 (2020)
  • Author(s): 高橋和也・岩滝光儀
  • Organizer: 日本藻類学会第44回大会
• [Presentation] Pigment composition and phylogenetic relationship of the Kareniaceae (Gymnodiniales, Dinophyceae) from the Western Pacific coastal waters (2020)
  • Author(s): G. Benico, K. Takahashi, T. Yoshikawa, M. Iwataki
  • Organizer: 日本藻類学会第44回大会
• [Presentation] Taxonomy and molecular characterization of fish-killing algae (2019)
  • Author(s): M. Iwataki
  • Organizer: Advanced International Colloquium and Technical Workshop on Fish-Killing Marine Algae and Their Effects
  • Int'l Joint Research / Invited
• [Presentation] Ultrastructure and phylogeny of a harmful micropredatory species of Karlodinium (Kareniaceae, Dinophyceae) found in Manila Bay, Philippines (2019)
  • Author(s): G. Benico, K. Takahashi, W.M. Lum, M. Iwataki
  • Organizer: 11th EASTHAB Symposium
  • Int'l Joint Research
• [Presentation] Morphology and pigment composition of an unarmored dinoflagellate resembling Gertia stigmatica (Kareniaceae, Dinophyceae) isolated from Japan (2019)
  • Author(s): K. Takahashi, M. Iwataki
  • Organizer: 11th EASTHAB Symposium
  • Int'l Joint Research
• [Presentation] Morphology and phylogeny of armored dinoflagellates in the Amphidomataceae (Azadinium and Amphidoma) from Japan (2019)
  • Author(s): M. Iwataki, K. Takahashi, W.M. Lum, G. Benico, M. Ozawa, H. Uchida, H. Oikawa, T. Suzuki
  • Organizer: 11th EASTHAB Symposium
  • Int'l Joint Research / Invited
• [Book] 原生生物学辞典（担当：有害藻類（赤潮・貝毒）） (2023)
  • Author(s): 岩滝光儀・内田肇・高橋和也
  • Total Pages: 452
  • Publisher: 朝倉書店
• [Book] Fish-Killing Marine Algal Blooms: Causative Organisms, Ichthyotoxic Mechanisms, Impacts and Mitigation (2023)
  • Author(s): G.M. Hallegraeff, D.M. Anderson, K. Davidson, F. Gianella, P.J. Hansen, H. Hegaret, M. Iwataki, T.O. Larsen, J. Mardones, L. MacKenzie, J.E. Rensel
  • Total Pages: 96
  • Publisher: UNESCO-IOC/SCOR
• [Remarks] 2021年秋季に北海道東部太平洋岸で発生した有害赤潮の原因種カレニア セリフォルミスの形態と系統
  • URL: https://www.a.u-tokyo.ac.jp/topics/topics_20220224-1.html
• [Funded Workshop] WESTPAC-HAB国際ワークショップ (2023)
• [Funded Workshop] WESTPAC-HABミーティング (2022)
• [Funded Workshop] WESTPAC-HABミーティング (2021)
• [Funded Workshop] WESTPAC-HAB国際ワークショップ (2021)
• [Funded Workshop] WESTPAC-HAB国際ワークショップ (2019)