1 Introduction Global mean sea surface temperatures have warmed ∼1°C relative to preindustrial levels and an additional warming of ∼1.5–3.5°C is possible over the next century depending on future greenhouse gas emission rates (Kwiatkowski et al., 2020). Our ability to project the impacts of future climate change on marine food webs and to make relevant adaptive changes, depends significantly on understanding the effect of temperature on physiological and ecological processes.