Atlantic Ocean 6 Procellariidae 6 Patagonian Shelf 4 Procellaria aequinoctialis 4 mortality 4 seabird 4 Animalia 2 Argentina (fish) 2 Argentine Shelf 2 Atlantic Ocean (Southwest) 2 Aves 2 Cephalopoda 2 Ciconiiformes 2 Diomedea 2 Diomedea melanophris 2 Diomedeidae 2 Macronectes giganteus 2 Procellaria 2 biological production 2 bird 2 breeding population 2 breeding season 2 bycatch 2 capture method 2 fishing vessel 2 habitat conservation 2 intersexual interaction 2 movement 2 population size 2 radiotelemetry 2