2018; Froehlich et al., 2018a; Catalán et al., 2019; Thiault et al., 2019; Falconer et al., 2020a). Sensitivities for marine finfish may be high even under +1.5-2.0℃  , resulting in finfish farms moving northward to maintain productivity ). Downscaled projections of regionally specific tolerances  may be particularly useful for management and planning; a 0.5℃ rise is predicted for Chilean salmon aquaculture , and potential negative impacts on productivity in Norway by 2029 have been projected  . Marine heatwaves are predicted to increase in occurrence, intensity and persistence under RCP4.5 or RCP8.5 by 2100 , with risk partly mitigated by husbandry  . Generally, negative impacts are predicted for marine species, with residual risk increasing with level of exposure (Sara et al., 2018; Smale et al.,
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report