Supplemental Data of: Mouth gape determines the response of marine top predators to long-term fishery-induced changes in food web structure

Palate breadth of South American sea lions (Otaria flavescens), South American fur seals (Arctocephalus australis) and Franciscana dolphins (Pontoporia blainvillei) from Río de la Plata estuary. Stable isotope values (δ13C and δ15N) and standard length of the Franciscana dolphin (Pontoporia blainvillei) and potential prey species off Río de la Plata estuary. δ13C and δ15N: values not corrected for isotopic baseline shifts; δ13Ccor and δ15Ncor: values corrected for isotopic baseline shifts.