Fig. 4: FAS and metabolically available habitat.
From: Unique thermal sensitivity imposes a cold-water energetic barrier for vertical migrators
a,b, Seawater temperature (a) and oxygen (b) profiles from 500 km to 2,000 km off the coast of the eastern Pacific Ocean (Extended Data Fig. 4; World Ocean Atlas 2018). c, Colour map of Dosidicus gigas FAS calculated using measured rates and temperature coefficients (Supplementary Table 1 and Extended Data Fig. 1) and environmental profiles (a,b). d, FAS of the euphausiid, Nyctiphanes simplex, estimated with a high (EMMR = 1.0 eV) temperature coefficient for MMR. Calculations are anchored at 25 °C assuming that Pcmax is 21 kPa (air saturation) at that temperature. Grey shading indicates FAS < 1.
