Killer whale predation on an Antarctic minke whale in the northern Antarctic Peninsula.

Autor: Seyboth E; Universidade Federal do Rio Grande (FURG), Laboratório de Ecologia e Conservação da Megafauna Marinha (EcoMega), Instituto de Oceanografia, Av. Italia Km 8, s/n, 96201-900 Rio Grande, RS, Brazil.; University of Pretoria, Mammal Research Institute Whale Unit, Department of Zoology and Entomology, 7200, Hermanus, South Africa., Bassoi M; Universidade Federal do Rio Grande (FURG), Laboratório de Ecologia e Conservação da Megafauna Marinha (EcoMega), Instituto de Oceanografia, Av. Italia Km 8, s/n, 96201-900 Rio Grande, RS, Brazil.; Universidade Federal do Rio Grande do Norte (UFRN), Laboratório de Bioacústica (LaB), Centro de Biociências, Av. Senador Salgado Filho 3000, Capim Macio, 59078-970 Natal, RN, Brazil., Lima RC; Universidade Federal do Rio Grande (FURG), Laboratório de Ecologia e Conservação da Megafauna Marinha (EcoMega), Instituto de Oceanografia, Av. Italia Km 8, s/n, 96201-900 Rio Grande, RS, Brazil.; Universidade Federal do Rio Grande (FURG), Programa de Pós-graduação em Oceanografia Biológica, Instituto de Oceanografia, Av. Itália Km 8, s/n, 96201-900 Rio Grande, RS, Brazil., Prado JHFD; Instituto Caipora, Servidão Olibio Correa de Souza, 309, Apt 04, Armação do Pântano do Sul, 88066-455 Florianópolis, SC, Brazil.
Jazyk: angličtina
Zdroj: Anais da Academia Brasileira de Ciencias [An Acad Bras Cienc] 2024 Jul 29; Vol. 96 (suppl 2), pp. e20230731. Date of Electronic Publication: 2024 Jul 29 (Print Publication: 2024).
DOI: 10.1590/0001-3765202420230731
Abstrakt: We describe the seldom observed event of a group of type A killer whale (Orcinus orca) predating on an Antarctic minke whale (Balaenoptera bonaerensis) in austral summer 2019. A pod of 11-13 individuals was observed - and documented by photographs and video - as they killed and fed on the minke whale in the Bransfield Strait, northern Antarctic Peninsula. The pod was being observed for about one hour, when some killer whale's individuals were noticed to be performing hunting behaviour. This lasted about 10 minutes, at the end of which the minke whale was killed. Three different species of seabirds were observed feeding on the minke carcass. A video of the encounter is provided.
Databáze: MEDLINE