Anthropogenic change is expected to alter environments at alarming rates. To predict the impact of modified environments on social behavior, we must study the relationship between environmental features and collective behavior in a genetically tractable model, zebrafish (Danio rerio). Here, we conducted a field study to examine the relationship between salient environmental features and collective behavior in four populations of zebrafish. We found zebrafish in flowing water formed volatile groups, whereas those in still water had more consistent membership and leadership. Groups in fast-flowing water were large (up to 2000 fish) and tightly knit with short nearest neighbor distances, whereas group sizes were smaller (11 fish/group) with more space between individual fish in still and slow-flowing water. These observations point to a possible profound role of water flow in influencing collective behavior in wild zebrafish.

中文翻译：

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野生斑马鱼的集体行为。

预计人为变化将以惊人的速度改变环境。为了预测修改后的环境对社会行为的影响，我们必须在遗传易处理的模型斑马鱼（Danio rerio）中研究环境特征与集体行为之间的关系。）。在这里，我们进行了一项实地研究，以检查四个斑马鱼种群的显着环境特征与集体行为之间的关系。我们发现在流动水中的斑马鱼形成了不稳定的群体，而在静水中的斑马鱼则具有更一致的成员资格和领导地位。水流湍急的水中的鱼群很大（多达 2000 条鱼）并且紧密相连，最近邻距离较短，而鱼群的规模较小（11 条鱼/组），静止水中和慢速水流中的鱼之间的空间更大。这些观察结果表明水流在影响野生斑马鱼的集体行为方面可能具有深远的作用。