Relationship between occurrence of the mixotrophic dinoflagellates and its prey organism in natural seawater
| Project/Area Number |
25450256
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aquatic bioproduction science
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| Research Institution | Mie University |
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Principal Investigator |
ISHIKAWA AKIRA 三重大学, 生物資源学研究科, 教授 (00273350)
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| Co-Investigator(Renkei-kenkyūsha) |
NISHITANI GOH 東北大学, 大学院農学研究科, 助教 (70450781)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 有毒渦鞭毛藻 / Dinophysis 属 / 餌生物 / 繊毛虫 / Dinophysis属 |
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| Outline of Final Research Achievements |
Gene analyses in the food vacuoles of the natural cells of D. acuminata collected from an enclosed port located at Ise Bay, central Japan, were pioneered in this study. From the gene evidences, M. rubrum was revealed as prey item. Water sampling was also conducted weekly or biweekly at the port from March 2012 to July 2015. The water samples were preserved with Bouin’s solution and both organisms (D. acuminate and M. rubrum) were enumerated under a microscope. The temporal changes in the abundances of both organisms often displayed the dynamics in which D. acuminata was flourished after the increase of M. rubrum and vice versa, indicating their prey-predator relationship in nature. In this study, prey organisms and prey-predator relationship for the toxic dinoflagellate D. rotundata were also revealed in nature.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Harmful algal blooms and climate change: Learning from the past and present to forecast the future2015
Author(s)
Wells, M.L., Trainer, V.L., Smayda, T.J., Karlson, B.S.O., Trick, C.G., Kudela, R.M., Ishikawa, A., Bernard, S., Wulff, A., Anderson, D.M., Cochlan, W.P.
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Journal Title
Harmful Algae
Volume: 49
Pages: 68-93
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] In situ dynamics of cyst and vegetative populations of the toxic dinoflagellate Alexandrium catenella in Ago Bay, central Japan2014
Author(s)
Ishikawa, A., Hattori, M., Ishii, K., Kulis, D.M., Anderson, D.M., Imai, I.
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Journal Title
Journal of Plankton Research
Volume: 36
Issue: 5
Pages: 1333-1343
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Relationship between occurrence of the toxic dinoflagellate Dinophysis acuminata and ciliate Mesodinium rub rum in the coastal water of Japan2014
Author(s)
Ishikawa, A., Nishitani, G., Kim, Y.-O., Takano, Y., Nagai, S.
Organizer
The 16th International Conference on Harmful Algae
Place of Presentation
Wellington, New Zealand
Year and Date
2014-10-27 – 2014-10-31
Related Report
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[Presentation] Effects of chemicals contained in the Asian dust (Kosa) particles on microbial compositions in the Pacific Ocean2014
Author(s)
Asahi, Y., Maki, T., Matsunaga, T., Horiuchi A., Ishikawa, A., Aoki, K., Hasegawa, K., Iwasaka, Y.
Organizer
2014 International Aerozol Conference
Place of Presentation
Busan, Korea
Year and Date
2014-08-28 – 2014-09-02
Related Report
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[Presentation] Effects of chemicals contained in the Asian dust (Kosa) particles on microbial compositions in the Pacific Ocean2014
Author(s)
Asahi, Y., Maki, T., Matsunaga, T., Horiuchi, A., Ishikawa, A., Aoki, K., Hasegawa, K., Iwasaka, Y.
Organizer
Asia Oceania Geosciences Society
Place of Presentation
ロイトン札幌、札幌
Year and Date
2014-07-28 – 2014-08-01
Related Report
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[Presentation] Selenium reduction by a marine microbe, Acidovorax sp. strain SSe6-1 newly isolated from the intracellular water of planktonic tunicate (salpa) bodies tghat were collected in the offcoast of Enchu, Pacific Ocean2014
Author(s)
Sakaguchi, T., Hiraoka, T., Kimura, H., Kato, Y., Ishikawa, A., Taguchi, K., Miyashita, H.
Organizer
10th Asia-Pacific Marine Biotechnology Conference
Place of Presentation
Taipei, Taiwan
Year and Date
2014-05-04 – 2014-05-08
Related Report
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