Extended Data Fig. 6: Potential environmental stressors in the Southern Ocean.
From: Tracking of marine predators to protect Southern Ocean ecosystems
a–c, Maps showing the change (mean in 1987–1998 compared to mean in 2007–2017) in sea-ice duration (days) (a), SST (°C) (b) and wind speed (m s−1) (c). Contour lines (black) indicate AESs. d–f, Kernel density plots show the distribution of values of each of a–c inside (red) and outside (grey) AESs. Horizontal lines represent zero change. Two-tailed permutation tests indicate significant differences in each case, and the number of grid cells included in the test is given in each case (n).
