虎鲸捕食南极小须鲸于南极半岛北部。

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

机构信息

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.

出版信息

An Acad Bras Cienc. 2024 Jul 29;96(suppl 2):e20230731. doi: 10.1590/0001-3765202420230731. eCollection 2024.

DOI:10.1590/0001-3765202420230731

PMID:39082478

Abstract

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.

摘要

我们描述了一个很少见的事件

一群A型虎鲸（Orcinus orca）在 2019 年南半球夏季捕食一只南极小须鲸（Balaenoptera bonaerensis）。一群 11-13 只虎鲸被观察到——并通过照片和视频记录下来——它们在南极半岛北部的布兰斯菲尔德海峡杀死并食用小须鲸。这群虎鲸被观察了大约一个小时，当时有人注意到一些虎鲸正在进行捕猎行为。这种情况持续了大约 10 分钟，在小须鲸被杀死结束时。三种不同的海鸟被观察到在小须鲸的尸体上觅食。我们提供了这次相遇的视频。