Figure 8. Thermal reaction norms for the two end-members species from our study compared with predicted ocean warming trends.

Projected warming by 2020–2029 and 2090–2099 red bars (see Figure 1B) and temperature range (arrow) (from [91]), over the annual cycle is overlaid on the two reaction-norms (0.9 to 4.3°C for the polar diatom and 23.7 to 28.3°C for the Crocosphaera strains).