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Fig. 3. Change in gastric pH of juvenile leopard sharks following ingestion of
squid at 1% body mass. Samples of gastric fluid were removed from the shark's
stomach, and pH readings corrected to a standardized value at 18°C. Values
are means ± 1 S.D.; numbers above bars are sample sizes.
Bars with the same letter are statistically insignificant from each other (see
text for details).