有关远洋中上层鱼类大量聚集在流物周围原因的假说有很多,本文对这些假说进行了总结,认为群聚与群丛理论可以有效的解释这种现象。群聚是指鱼类与流物间距离很近,非常依赖于流物的存在,流物可帮助鱼类获得食物、躲避敌害等。群丛是指鱼类与流物间距离较远,对流物没有明显的依赖性,流物主要起到指示物的作用,帮助鱼类汇集在一起以形成更大的鱼群。 There are many hypotheses about the reasons why the pelagic pelagic fish gather around the floes in large numbers. This paper summarizes these hypotheses and suggests that the clustering and clustering theory can effectively explain this phenomenon. Flocking refers to the close distance between fish and fishes, relies heavily on the presence of fiuid, fhe fluid can help fish get food, dodge predators and so on. Cluster refers to the farther distance between fish and the fluid, there is no obvious dependence on the fluid, and the fluid mainly serves as an indicator to help fish come together to form a larger fish population.