info:eu-repo/semantics/article
Magellanic penguin mortality in 2008 along the SW Atlantic coast
Fecha
2010-10Registro en:
Garcia Borboroglu, Jorge Pablo; Boersma, P. Dee; Ruoppolo, Valeria; Pinho da Silva Filho, Rodolfo; Adornes Corrado, Andrea; et al.; Magellanic penguin mortality in 2008 along the SW Atlantic coast; Pergamon-Elsevier Science Ltd; Marine Pollution Bulletin; 60; 10; 10-2010; 1652-1657
0025-326X
CONICET Digital
CONICET
Autor
Garcia Borboroglu, Jorge Pablo
Boersma, P. Dee
Ruoppolo, Valeria
Pinho da Silva Filho, Rodolfo
Adornes Corrado, Andrea
Conte Sena, Daniella
Velozo, Raquel
Myiaji-Kolesnikovas, Cristiane
Dutra, Gustavo
Maracini, Pryscilla
Carvalho-do-Nascimento, Cláudia
Ramos-Júnior, Valdir
Barbosa, Lupércio
Serra, Sheila
Resumen
Magellanic penguins migrate from Patagonia reaching northern Argentina, Uruguay, and southern Brazil on their winter migration, in parallel with the seasonal pulse of anchovy spawning. In 2008, Magellanic penguins went further north than usual. Many died and a few swam nearly to the Equator. Twelve groups surveyed 5000. km of coastline encountering 3371 penguins along the coast. Most penguins arrived in northern Brazil (68.4%) without petroleum (2933, 87%). Almost all penguins without petroleum were juveniles (2915, 99%) and 55% were alive when found. Penguins were dehydrated, anemic, hypothermic, and emaciated. Of the penguins with petroleum, 13% arrived in the southern half of Brazil, showing that petroleum pollution remains a problem along the SW Atlantic coast. The mortality occurred in the winter of 2008 when sea surface temperature were unusually cold perhaps reducing the prey for penguins.