Freshwater fishes residing in a coastal embayment are largely buffered from thermal upwelling events.

Upwelling events are common in thermally stratified marine and freshwater systems and can lead to rapid changes in water temperature that presumably impact fishes. Here we examined the effect of rapid changes in water temperature (upwelling events) on the behaviour of two wild fish species from different thermal guilds: Northern Pike (Esox lucius), representing coolwater fishes, and Largemouth Bass (Micropterus nigricans), representing …