Best linear mixed-effects model results and estimated coefficients for the effects on adult male and female northern fur seal average dive depths.

Females and males were examined separately and the reference level is the North Pacific Ocean. P-values in boldface are significant at P≤0.05. AS = Alaska Stream; BB = Bering Sea Basin; BS = Bering Sea Shelf; CC = California Current; GA = Gulf of Alaska; S = season or days from 1 October; D = proportion of daylight in each 6 h period; M = fraction of the moon illuminated; MLD = mixed-layer depth.