Abstract The spatial structure of the population of European perch is transformed and the behavior, diet, and size–weight characteristics of perch individuals change in aquaculture conditions. Instead of an individual diffuse behavior, fish form large aggregations in a cage zone. Active consumption of high-calorie trout feed leads to a reduction in the proportion of natural food items, in particular, zoobenthos. The size and weight of individuals significantly increase. The high density of the fish community in a small part of the water area allows older perch to more successfully hunt, thereby leading to a naturally untypical acceleration of their growth rates.

中文翻译：

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水产养殖淡水体对欧洲鲈鱼行为和生长的影响

摘要 欧洲鲈鱼种群的空间结构发生了变化，鲈鱼个体的行为、饮食和大小体重特征在水产养殖条件下发生了变化。鱼在网箱区域形成大的聚集体，而不是单独的扩散行为。积极食用高热量鳟鱼饲料会导致天然食物的比例减少，特别是底栖动物。个体的体型和体重显着增加。一小部分水域中鱼类群落的高密度使年长的鲈鱼能够更成功地捕猎，从而导致它们的生长速度自然地非典型加速。