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

Research Project

Project/Area Number 19KK0160
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 40:Forestry and forest products science, applied aquatic science, and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Iwataki Mitsunori  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 *help
¥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 Final Research Achievements

Morphology, phylogeny and distribution of small harmful dinoflagellates, belonging to the Kareniaceae and Amphidomataceae, were examined by using culture strains isolated from coastal waters of Southeast Asia. In this study, 13 kareniacean dinoflagellates including two Karenia, six Karlodinium and five Takayama species from Southeast Asia, and 19 kareniaceans from Japan were identified based on their ultrastructure and phylogenetic positions inferred from LSU rDNA and ITS sequences. Two amphidomatacean dinoflagellates, Azadinium poporum and Amphidoma sp., were isolated for the first time from Southeast Asia, and azaspiracid was detected from the former species. Since the occurrence information of these small harmful dinoflagellates have been limited in Southeast Asia, species composition and morpho-molecular data obtained in this study will contribute to harmful algal bloom monitoring in coastal waters of Southeast Asia.

Academic Significance and Societal Importance of the Research Achievements

東南アジア沿岸域では細胞が比較的大きい有害渦鞭毛藻は出現報告されてきたが,小型のカレニア科やアンフィドマ科渦鞭毛藻については出現情報が限られていた。これらは形態識別が困難であるため,将来的には分子同定によるモニタリング実施が想定される。本研究では,東南アジア沿岸域からカレニア科の13種とアンフィドマ科の2種の出現を確認し,微細構造と系統的位置を明らかにした。本研究で種同定や新種記載により明らかにした小型有害渦鞭毛藻の分布情報は有害藻類モニタリングに活用され,蓄積したDNA配列は将来的な分子同定だけでなく,東アジア出現種との比較により有害種の分布域把握に寄与する。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (108 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (30 results) Journal Article (19 results) (of which Int'l Joint Research: 14 results,  Peer Reviewed: 18 results,  Open Access: 5 results) Presentation (51 results) (of which Int'l Joint Research: 24 results,  Invited: 10 results) Book (2 results) Remarks (1 results) Funded Workshop (5 results)

  • [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)

    • Related Report
      2023 Annual Research Report
  • [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)

    • Related Report
      2023 Annual Research Report
  • [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)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] チュラロンコン大学(タイ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [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)

    • Related Report
      2022 Research-status Report
  • [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)

    • Related Report
      2022 Research-status Report
  • [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)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)

    • Related Report
      2022 Research-status Report
  • [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)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2022 Research-status Report
  • [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)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] マラヤ大学(マレーシア)

    • Related Report
      2021 Research-status Report
  • [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)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)

    • Related Report
      2021 Research-status Report
  • [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)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2021 Research-status Report
  • [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)

    • Related Report
      2020 Research-status Report
  • [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)

    • Related Report
      2020 Research-status Report
  • [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)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] チュラロンコン大学(タイ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2020 Research-status Report
  • [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)

    • Related Report
      2019 Research-status Report
  • [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)

    • Related Report
      2019 Research-status Report
  • [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)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] チュラロンコン大学(タイ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] 海洋水産研究所/ベトナム海洋研究所(ベトナム)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2019 Research-status Report
  • [Journal Article] Comparative effects of temperature and salinity on growth of four harmful Chattonella spp. (Raphidophyceae) from tropical Asian waters2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Harmful Algae in Indonesia: Small in Size, Big in Effect2023

    • 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

    • Related Report
      2022 Research-status Report
    • 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 component2023

    • 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

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dinoflagellate Cyst Distribution in Relation to the Sediment Composition and Grain Size in the Coastal Area of Pangkajene, South Sulawesi, Indonesia2022

    • 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

    • Related Report
      2022 Research-status Report
    • 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 mortality2022

    • 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

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A massive bloom of Karenia species (Dinophyceae) off the Kamchatka coast, Russia, in the fall of 20202022

    • 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

    • Related Report
      2022 Research-status Report
    • 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, Japan2022

    • 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

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts2021

    • 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

    • Related Report
      2021 Research-status Report
    • 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/MS2021

    • 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

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Thecal tabulation, body scale morphology and phylogeny of Heterocapsa philippinensis sp. nov. (Peridiniales, Dinophyceae) from the Philippines2021

    • 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

    • Related Report
      2021 Research-status Report
    • 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 distribution2021

    • 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

    • Related Report
      2021 Research-status Report
    • 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 Pacific2021

    • 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

    • Related Report
      2020 Research-status Report
    • 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

    • Related Report
      2020 Research-status Report
    • 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

    • Related Report
      2020 Research-status Report
    • 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

    • Related Report
      2019 Research-status Report
    • 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 Russia2020

    • 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

    • Related Report
      2019 Research-status Report
    • 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

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dactylodinium arachnoides sp. nov. (Borghiellaceae, Dinophyceae): a new marine dinoflagellate with a loop-shaped apical structure complex and tubular membranous extrusomes2019

    • 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

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gertia stigmatica gen. et sp. nov. (Kareniaceae, Dinophyceae), a new marine unarmored dinoflagellate possessing the peridinin-type chloroplast with an eyespot2019

    • 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

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Morphology and phylogeny of Karlodinium zhouanum (Kareniaceae, Dinophyceae) and its first report in the Pacific side of the Philippines2023

    • Author(s)
      S.P.C. Esteban, G.A. Benico, K. Kuwata, M. Iwataki
    • Organizer
      7th National Symposium in Marine Science
    • Related Report
      2023 Annual Research Report
  • [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
    • Related Report
      2023 Annual Research Report
  • [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
    • Related Report
      2023 Annual Research Report
  • [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
    • Related Report
      2023 Annual Research Report
  • [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
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] New records of three raphidophytes in Philippines: Taxonomic identification and phylogeographic insights2023

    • Author(s)
      S.P.C. Esteban, G.A. Benico, W.M. Lum, M. Iwataki
    • Organizer
      The 20th International Conference on Harmful Algae
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Plastid molecular phylogeny of the unarmored dinoflagellate family Kareniaceae suggests multi-parallel haptophyte symbiosis2023

    • Author(s)
      K. Takahashi, G. Benico, M. Iwataki
    • Organizer
      The 20th International Conference on Harmful Algae
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New toxins and toxic species - and what about their names? -News from the IOC- taxonomic reference list group2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bacterial effect on red tide formation caused by Karenia selliformis on the coast of Hokkaido, Japan2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Global socio-economic impacts from fish-killing algal blooms: A roadmap towards more effective management and mitigation2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morphology, molecular phylogeny, and ichthyotoxicity of naked dinophytes Karlodinium species from Malaysia2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Different ecological niche adaptation of four harmful raphidophytes in Southeast Asia2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Taxonomy and phylogeny of unarmored dinoflagellates of the family Kareniaceae isolated from Hokkaido, Japan2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morpho-molecular characterization of a new non-toxigenic Amphidoma species from the Asian Pacific2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Species diversity of kareniacean dinoflagellates in the Philippines, including the detection of an undescribed Karlodinium species2023

    • Author(s)
      G. Benico, S. Esteban, K. Kuwata, K. Takahashi, M. Iwataki
    • Organizer
      The 20th International Conference on Harmful Algae
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morphology and phylogeny of a novel Scrippsiella species from Central Luzon, Philippines2023

    • Author(s)
      S.P.C. Esteban, G.A. Benico, K. Kuwata, M. Iwataki
    • Organizer
      The 20th International Conference on Harmful Algae
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Toxin analysis of Kareniaceae cultures isolated from the northern coastal waters in Japan2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Karenia selliformis and other kareniaceans in an intensive cold-water algal bloom in eastern Hokkaido, Japan in 20212023

    • Author(s)
      M. Iwataki
    • Organizer
      The 20th International Conference on Harmful Algae, Workshop 02
    • Related Report
      2023 Annual Research Report
    • 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
    • Related Report
      2022 Research-status Report
  • [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
    • Related Report
      2022 Research-status Report
  • [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
    • Related Report
      2022 Research-status Report
  • [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
    • Related Report
      2022 Research-status Report
  • [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
    • Related Report
      2022 Research-status Report
  • [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
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Morphology and phylogeny of kareniacean dinoflagellates recently formed marine harmful algal blooms in Asian Pacific2022

    • Author(s)
      M. Iwataki, W.M. Lum, K. Kuwata, K. Takahashi, G. Benico
    • Organizer
      International Scientific Conference on Bien Dong 2022
    • Related Report
      2022 Research-status Report
    • 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
    • Related Report
      2022 Research-status Report
    • 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
    • Related Report
      2022 Research-status Report
  • [Presentation] Ultrastructure of a benthic suessiacean dinoflagellate from tidal regions in Japan2022

    • 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
    • Related Report
      2021 Research-status Report
  • [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
    • Related Report
      2021 Research-status Report
  • [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
    • Related Report
      2021 Research-status Report
  • [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
    • Related Report
      2021 Research-status Report
  • [Presentation] Taxonomy and phylogeny of unarmored dinoflagellates in the Kareniaceae found from Asian Pacific2021

    • Author(s)
      M. Iwataki, B. Garry, T. Kazuya, W.M. Lum
    • Organizer
      19th International Conference on Harmful Algae
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Are harmful marine microalgal blooms and their societal impacts increasing? A 30 year global data analysis2021

    • 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
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Morphology, pigment composition and phylogeny of an unarmored dinoflagellate Gertia sp., a peridinin-containing species in the Kareniaceae2021

    • Author(s)
      K. Takahashi, W.M. Lum, M. Iwataki
    • Organizer
      19th International Conference on Harmful Algae
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Morphology and phylogeny of an undescribed suessiacean dinoflagellate from a tidal pool in Japan2021

    • Author(s)
      W.M. Lum, K. Takahashi, T. Nishimura, M. Adachi, M. Iwataki
    • Organizer
      19th International Conference on Harmful Algae
    • Related Report
      2021 Research-status Report
    • 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
    • Related Report
      2021 Research-status Report
  • [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
    • Related Report
      2021 Research-status Report
  • [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
    • Related Report
      2021 Research-status Report
  • [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
    • Related Report
      2021 Research-status Report
    • 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
    • Related Report
      2020 Research-status Report
  • [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
    • Related Report
      2020 Research-status Report
  • [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
    • Related Report
      2020 Research-status Report
  • [Presentation] Morphology of kareniacean dinoflagellates occurred in Japanese coast2020

    • 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
    • Related Report
      2020 Research-status Report
    • 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
    • Related Report
      2019 Research-status Report
  • [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
    • Related Report
      2019 Research-status Report
  • [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
    • Related Report
      2019 Research-status Report
  • [Presentation] Pigment composition and phylogenetic relationship of the Kareniaceae (Gymnodiniales, Dinophyceae) from the Western Pacific coastal waters2020

    • Author(s)
      G. Benico, K. Takahashi, T. Yoshikawa, M. Iwataki
    • Organizer
      日本藻類学会第44回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Taxonomy and molecular characterization of fish-killing algae2019

    • Author(s)
      M. Iwataki
    • Organizer
      Advanced International Colloquium and Technical Workshop on Fish-Killing Marine Algae and Their Effects
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultrastructure and phylogeny of a harmful micropredatory species of Karlodinium (Kareniaceae, Dinophyceae) found in Manila Bay, Philippines2019

    • Author(s)
      G. Benico, K. Takahashi, W.M. Lum, M. Iwataki
    • Organizer
      11th EASTHAB Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Morphology and pigment composition of an unarmored dinoflagellate resembling Gertia stigmatica (Kareniaceae, Dinophyceae) isolated from Japan2019

    • Author(s)
      K. Takahashi, M. Iwataki
    • Organizer
      11th EASTHAB Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Morphology and phylogeny of armored dinoflagellates in the Amphidomataceae (Azadinium and Amphidoma) from Japan2019

    • Author(s)
      M. Iwataki, K. Takahashi, W.M. Lum, G. Benico, M. Ozawa, H. Uchida, H. Oikawa, T. Suzuki
    • Organizer
      11th EASTHAB Symposium
    • Related Report
      2019 Research-status Report
    • 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
    • Related Report
      2023 Annual Research Report
  • [Book] Fish-Killing Marine Algal Blooms: Causative Organisms, Ichthyotoxic Mechanisms, Impacts and Mitigation2023

    • 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
    • Related Report
      2023 Annual Research Report
  • [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

    • Related Report
      2021 Research-status Report
  • [Funded Workshop] WESTPAC-HAB国際ワークショップ2023

    • Related Report
      2023 Annual Research Report
  • [Funded Workshop] WESTPAC-HABミーティング2022

    • Related Report
      2022 Research-status Report
  • [Funded Workshop] WESTPAC-HABミーティング2021

    • Related Report
      2021 Research-status Report
  • [Funded Workshop] WESTPAC-HAB国際ワークショップ2021

    • Related Report
      2020 Research-status Report
  • [Funded Workshop] WESTPAC-HAB国際ワークショップ2019

    • Related Report
      2019 Research-status Report

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Published: 2019-10-10   Modified: 2025-01-30  

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