论文标题
重力场对鱼类集体运动的影响
Effect of gravitational field on collective motion of fish
论文作者
论文摘要
鱼类表现出各种集体运动模式，在这种模式中，各个鱼类感知重力场并倾向于地面移动。我们通过将垂直运动的抑制纳入基于代理的模型中来研究重力对集体模式的影响。引力因子诱导龙卷风，这是曲线的垂直和高度伸长形式，即使与鱼之间的相互作用相比，即使引力因子较弱，涡流轴也几乎与垂直轴相同。我们还获得了高额密度的垂直延长的两极分化学校。我们的结果阐明了重力对整个群集的形状，个体级运动和迁移率的影响。
Fish exhibit various patterns of collective motion, in which individual fish sense the gravitational field and tend to move horizonally. We study the effect of gravity on the collective patterns by incorporating suppression of vertical motion in an agent-based model. The gravitational factor induces a tornado which is a vertically and highly elongated form of a torus, The vortex axis becomes almost identical to the vertical axis even when the gravitational factor is weak compared to the interaction between fish. We also obtained a vertically elongated polarized school with high frontal density. Our results clarify the effect of gravity on the shape of clusters, individual-level motion, and mobility of the entire cluster.
