Fig. 3: Effects of climate change on phytoplankton blooms.
From: Coastal phytoplankton blooms expand and intensify in the 21st century

a,b, Global patterns of trends in SST gradient (a) and SST (b) from 2003 to 2020. c, Long-term changes in bloom frequency in the regions labelled in a and b, and their relationship to the SST and SST gradient. Linear slope (S) of bloom frequency and the correlation coefficient (r) between bloom frequency and the SST and the SST gradient (∇SST) are shown. Asterisks indicate statistically significant (P < 0.05) correlations. Maps created using ArcMap 10.4 and Python 3.8.