| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Outline of Final Research Achievements |
Our analysis of fish schools (Ayu) showed the possibility of inherent multiple functions for collective behavior. First, we showed that Ayu groups use the optimal strategy, known as Levy walk, for exploring behavior. Interestingly, although this strategy was used in both cases, that is, a single fish and a group fish, their trajectories were completely different. On the other hand, we defined the global and local perspective for the fish position in groups and found the degree of discrepancy between them resulted in different collective motions. Our results suggests inherent discrepancy inside the group enables them to have many options to behave. Finally, we found the asynchronic timing behaviors inside the flocks which would connect multiple functions in the group.
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