Associations between seabirds and subsurface predators around Oahu, Hawaii

Aquatic Biology

关键词: Tropical seabirds;    Subsurface predators;    Skipjack tuna;    Katsuwonus pelamis;    Wedge-tailed shearwater;    Puffinus pacificus;    Hawaii;    Pacific Ocean;   

DOI  :  10.3354/ab00098

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Many species of tropical seabirds rely on subsurface predators such as tuna and dolphins to drive prey close to the ocean’s surface. We observed seabird foraging events from fishing vessels around the island of Oahu, Hawaii, to determine the prevalence and relative importance of different subsurface predators to seabird foraging. Sixty-nine seabird foraging events were observed, in 62 of which the presence and/or identity of subsurface predators could be determined. Of those 62, all but two involved subsurface predators and accounted for 99.8% of all foraging birds. Skipjack tuna

【 授权许可】

CC BY