Parameters used in the numerical simulations of virtual salmon fry tracking and the estimated migration durations to southern Hokkaido under the six scenarios. Positive and negative angles used in the swimming direction denote northeastward and northwestward, respectively.

Parameters used in the numerical simulations of virtual salmon fry tracking and the estimated migration durations to southern Hokkaido under the six scenarios. Positive and negative angles used in the swimming direction denote northeastward and northwestward, respectively.六种情景下，用于虚拟鲑鱼幼体追踪数值模拟以及北海道南部洄游时长估算的相关参数。游动方向所采用的正负角度分别对应东北向与西北向。