Thermal tolerance in salmonids

Salmonids are known to be a fish of high commercial value. The global salmon fish market was estimated to be worth USD 14.87 million in 2021 (Grand View Research, 2020). At the same time, their populations are particularly sensitive to climate change, as they need specific temperature ranges for optimal growth, reproduction and survival. Elevated temperatures of streams, sea surface as well as ocean acidification alongside the fishing industry, puts enormous pressure on their populations (Crozier, et al. 2020). This dataset synthesises the thermal tolerance values (CTmax - Critical Thermal Maximum) of various salmon species in a wide range of geographical locations, allowing us to compare and determine the most vulnerable species in response to the increasing temperatures.