Figure 4. Area Restricted Search locations and whisker δ¹³C and δ¹⁵N values reflecting independent foraging at sea.

(A) Mean δ¹³C and δ¹⁵N whisker values and (B) Area Restricted Search locations for 7 sub-yearling elephant seals during their first migration from Macquarie Island are colour-coded according to foraging location (Inter-Frontal Zones, IFZs, presented in Fig. 2). Bathymetric features including the Southeast Indian Ridge, Australian-Antarctic Basin and Mid-Ocean Ridge are indicated in (B). Values are mean±SD.