Temperature-mediated shifts in feeding behaviour and metabolism in an omnivorous rock pool prawn

We investigated the effects of temperature on the feeding behaviour and metabolic activity of the omnivorous rock pool prawn Palaemon elegans Rathke, 1837, across three temperature regimes (15ºC, 20ºC, and 25ºC) commonly encountered in intertidal rockpools of the Azores. Palaemon individuals were offered either algae (Ulva muscoides), amphipods (Hyale perieri), or a choice of both to assess feeding preferences.

本研究探讨了温度对杂食性潮池虾——优雅长臂虾（Palaemon elegans Rathke, 1837）取食行为与代谢活性的影响，实验设置了亚速尔群岛潮间带潮池常见的三种温度处理（15℃、20℃、25℃）。为评估该虾的取食偏好，实验为受试个体提供了三种投喂方案：单独投喂苔藓状石莼（Ulva muscoides）、单独投喂佩里氏海钩虾（Hyale perieri），或同时提供两种食物以供选择。