Fig. 1. Characteristic change in stomach temperature as a result of feeding (solid line). Data from a sub-adult male northern elephant seal fed 1.0 kg of herring at 08:12 h (denoted by arrow). Variables used to analyze stomach temperature change are A, initial temperature (°C); B, minimum temperature (°C); C, recovery (min). Area (s °C) was calculated from the broken line to the stomach temperature curve.