Animal-Borne Acoustic Transceivers Reveal Patterns of at-Sea Associations in an Upper-Trophic Level Predator

Damian C Lidgard, W Don Bowen, Ian D Jonsen and Sara J Iverson

PLOS ONE, 2012, vol. 7, issue 11, 1-8

Abstract: Satellite telemetry data have substantially increased our understanding of habitat use and foraging behaviour of upper-trophic marine predators, but fall short of providing an understanding of their social behaviour. We sought to determine whether novel acoustic and archival GPS data could be used to examine at-sea associations among grey seals (Halichoerus grypus) during the fall foraging period. Fifteen grey seals from Sable Island, Canada were deployed with Vemco Mobile Transceivers and Satellite-GPS transmitters in October 2009, 13 of which were recaptured and units retrieved 79±2.3 days later during the following breeding season, December 2009–January 2010. An association between two individuals was defined as a cluster of acoustic detections where the time between detections was

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0048962

DOI: 10.1371/journal.pone.0048962

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