Atlantic Ocean 4 Atlantic Ocean (South) 4 dolphin 4 Argentina 2 Atlantic Ocean (Southwest) 2 Buenos Aires [Argentina] 2 Cetacea 2 Cynoscion guatucupa 2 Franciscana dolphin 2 Grampus griseus 2 Patagonian Sea 2 Pontoporia blainvillei 2 Sightings 2 Southwestern South Atlantic Ocean 2 Southwestern south atlantic ocean 2 Stranding 2 Trophic habits 2 age class 2 carbon isotope 2 coastal water 2 endangered species 2 endemic species 2 estimation method 2 food consumption 2 future prospect 2 home range 2 intraspecific variation 2 isotopic analysis 2 movement 2 nitrogen isotope 2