We undertook a common garden experiment in the Burrishoole catchment, western Ireland, to test for heritable life‐history differences among neighboring brown trout ( Salmo trutta L.) populations that exhibit neutral genetic divergence. Experimental crosses were made using either local females (obtained from a below‐waterfalls section of the Rough River within the Burrishoole) or females from the Erriff River—a neighboring catc...

Global warming has been implicated in widespread demographic changes in Atlantic salmon Salmo salar populations, but projections of life‐history responses to future climate change are lacking. Here, we first exploit multiple decades of climate and biological data from the Burrishoole catchment in the west of Ireland to model statistical relationships between atmospheric variables, water temperature, and freshwater growth of ju...