| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Outline of Final Research Achievements |
We focused on the composition, abundance, and distribution patterns of small-sized zooplankton communities in the Indian sector of the Southern Ocean. Because these small zooplankton is difficult to evaluate its abundance precisely. The distribution patterns of small-sized zooplankton communities showed no clear relationship with the frontal structure and/or sea-ice condition. These results suggest that they have a greater tolerance to change in the physical environment. The major contributors to the total zooplankton abundance were small copepods of the genera Oithona, Oncaea, Ctenocalanus, and Microcalanus, and they tended to be ubiquitously distributed. In particular, Oithona similis and Ctenocalanus citer were important contributors to the community structure. They are considered to be key species of the change of planktonic food web of the Southern Ocean. Intensive discussion and collaboration with the Australian scientists have developed over the present study.
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