Blooming and distribution expansion of ciguatera causative dinoflagellates in Southeast Asia
| Project/Area Number |
24255016
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
General fisheries
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| Research Institution | The University of Tokyo |
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Principal Investigator |
FUKUYO Yasuo 東京大学, 農学生命科学研究科, 教授 (70095511)
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| Co-Investigator(Kenkyū-buntansha) |
IWATAKI Mitsunori 東京大学, アジア生物資源環境研究センター, 准教授 (50423645)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥42,250,000 (Direct Cost: ¥32,500,000、Indirect Cost: ¥9,750,000)
Fiscal Year 2014: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2013: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2012: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
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| Keywords | シガテラ / 魚貝毒 / 有毒渦鞭毛藻 / 東南アジア / 国際研究者交流 / タイ / ベトナム / シガトキシン / 有害微細藻類 / 渦鞭毛藻類 / 水産資源利用 / 有毒渦鞭毛藻類 / 食中毒 / フィリピン |
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| Outline of Final Research Achievements |
Occurrence of ciguatera fish poisoning was analyzed by observation of poisoning symptoms and toxin analysis of causative fish meats. Distribution of ciguatera causative dinoflagellates was also observed through sampling of benthic species at various coastal areas in the Gulf of Thailand and South China Sea. Ciguatera has been told to occur various places in Southeast Asia, but most of them have no confirmation of presence of ciguatoxin, and different types of poisonings, judged by symptoms, were called as ciguatera. But we could confirm ciguatera occurrence, i.e. presence of ciguatoxin, for a case of poisoning occurred in Ho Chi Minh City, Vietnam in July 2014. This is the first confirmed case in Southeast Asia. Toxic benthic dinoflagellates belonging to the genera such as Gambierdiscus and Ostreopsis, were found widely at most of sampling stations in the Gulf of Thailand and South China Sea. But cell number were quite low and their geographical expansion was not confirmed.
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Report
(4 results)
Research Products
(44 results)
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[Journal Article] A bloom of Karlodinium australe (Gymnodiniales, Dinophyceae) associated with mass mortality of cage-cultured fishes in West Johor Strait, Malaysia2014
Author(s)
H.C. Lim, C.P. Leaw, T.H. Tan, N.F. Kon, L.H. Yek, K.S. Hii, S.T. Teng, R. Mohd Razali, G. Usup, M. Iwataki, P.T. Lim
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Journal Title
Harmful Algae
Volume: 40
Pages: 51-62
Related Report
Peer Reviewed
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[Presentation] Phytoplankton composition on the west Johor Strait with emphasis on occurrence of harmful algal blooms event2014
Author(s)
P.T. Lim, H.C. Lim, S. T. Teng, T.H. Tan, K.S. Hii, N.F. Kon, L.H. Yek, R. Mohd Razali, G. Usup, M. Iwataki, C.P. Leaw
Organizer
MoE-UPM-JSPS (ACORE-COMSEA) International Workshop on Integrative Research on Seagrass Ecosystems (IER) in Southeast Asia
Place of Presentation
Universiti Putra Malaysia, Port Dickson, Malaysia
Year and Date
2014-12-16
Related Report
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[Presentation] Changes in composition and abundance of phytoplankton in Ha Long Bay during the last decade2014
Author(s)
N.V. Nguyen, L.T. Tung, D.D. Thu, L.X. Hoa, N.V. Thoa, N.C. Thanh, C.V. Thuoc, N.M. Huyen, M. Iwataki, Y. Fukuyo
Organizer
IOC/WESTPAC 9th International Scientific Symposium
Place of Presentation
Nha Trang, Vietnam
Year and Date
2014-04-22
Related Report
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[Presentation] Change in composition and density of phytoplankton in Ha Long Bay during the last decade.
Author(s)
N.V. Nguyen, L.T. Tung, D.D. Thu, L.X. Hoa, N.V. Thoa, N.C. Thanh, C.V. Thuoc, N.M. Huyen, M. Iwataki, Y. Fukuyo
Organizer
NRCT-JSPS Joint International Seminar
Place of Presentation
Khum Phucome Hotel, Chiangmai, Thailand
Related Report
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