Fig. 1. Continuous gastric pH measurements from six adult female leopard sharks Triakis semifasciata (Leo 1-6) fitted with a pH/temperature probe. Temperature is depicted in grey, pH in black. Arrows point to feeding events; numbers above arrows represent meal size (percentage of the shark's body mass). `?' indicates the point where a meal of unknown mass was consumed. All meals were squid except for that marked with an asterisk, where a meal of capelin Mallotus villosus was consumed.