| 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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| 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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