抄録
In order to obtain evaluation index of fish schooling behavior model for Japanese freshwater fish, experiments with Japanese dace Tribolodon hakonensis were carried out. The Behavior of Japanese dace in a quadrilateral and static water area was recorded on video using camera, which was fixed on a ceiling board and covered the whole water area At intervals 1 second, images were captured from video tape. We defined (1) Fish school radius, (2) Distance between individual, (3) Velocity of fish schooling as evaluation indices.
