Extended Data Fig. 3: Random forest variable importance plots.
![Extended Data Fig. 3](https://cdn.statically.io/img/media.springernature.com/full/springer-static/esm/art%3A10.1038%2Fs41558-024-02058-3/MediaObjects/41558_2024_2058_Fig9_ESM.jpg)
Ranked feature importance of environmental covariates of DO saturation (a) and the long-term DO saturation trend (b). Permutation importance z-scores reflect increases in model root-mean-square-error upon shuffling variable values. Bracketed letters indicate whether the variable was measured in bottom (b) or surface waters (s).