Show simple item record

dc.contributor.authorCagua, Edgar F.
dc.contributor.authorCochran, Jesse
dc.contributor.authorRohner, Christoph A.
dc.contributor.authorPrebble, Clare E M
dc.contributor.authorSinclair-Taylor, Tane
dc.contributor.authorPierce, Simon J.
dc.contributor.authorBerumen, Michael L.
dc.date.accessioned2015-08-03T12:33:41Z
dc.date.available2015-08-03T12:33:41Z
dc.date.issued2015-04-01
dc.identifier.issn17449561
dc.identifier.pmid25832816
dc.identifier.doi10.1098/rsbl.2015.0092
dc.identifier.urihttp://hdl.handle.net/10754/564136
dc.description.abstractAlthoughwhale sharks (Rhincodon typus) have beendocumentedtomove thousands of kilometres, they are most frequently observed at a few predictable seasonal aggregation sites. The absence of sharks at the surface during visual surveys has led to the assumption that sharks disperse to places unknown during the long 'off-seasons' at most of these locations. Here we compare 2 years of R. typus visual sighting records from Mafia Island in Tanzania to concurrent acoustic telemetry of tagged individuals. Sightings revealed a clear seasonal pattern with a peak between October and February and no sharks observed at other times. By contrast, acoustic telemetry demonstrated yearround residency of R. typus. The sharks use a different habitat in the offseason, swimming deeper and further away from shore, presumably in response to prey distributions. This behavioural change reduces the sharks' visibility, giving the false impression that they have left the area.We demonstrate, for the first timeto our knowledge, year-roundresidencyofunprovisioned, individual R. typus at an aggregation site, and highlight the importance of using multiple techniques to study the movement ecology of marine megafauna. © 2015 The Author(s) Published by the Royal Society. All rights reserved.
dc.description.sponsorshipThis study was supported by WWF Tanzania (grant CN74), KAUST Baseline Research Funding (to M.L.B.), the Shark Foundation, GLC Charitable Trust and a private trust (to S.J.P.).
dc.publisherThe Royal Society
dc.relation.urlhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC4424622
dc.subjectIndividual photo-identification
dc.subjectMovement ecology
dc.subjectRecapture probability
dc.subjectResidency patterns
dc.subjectUnderwater acoustic telemetry
dc.subjectVisual survey
dc.titleAcoustic telemetry reveals cryptic residency of whale sharks
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEntrepreneurship Center
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.contributor.departmentReef Ecology Lab
dc.identifier.journalBiology Letters
dc.identifier.pmcidPMC4424622
dc.relation.referencesCagua, E. F., Cochran, J. E. M., Rohner, C. A., Prebble, C. E. M., Sinclair-Taylor, T. H., Pierce, S. J., & Berumen, M. L. (2015). Data from: Acoustic telemetry reveals cryptic residency of whale sharks (Version 1) [Data set]. Dryad Digital Repository. https://doi.org/10.5061/dryad.g6c5q
dc.relation.referencesDOI:10.5061/DRYAD.G6C5Q
dc.relation.referencesHANDLE:http://hdl.handle.net/10754/624183
dc.contributor.institutionMarine Megafauna AssociationInhambane, Mozambique
kaust.personCagua, Edgar F.
kaust.personCochran, Jesse
kaust.personSinclair-Taylor, Tane
kaust.personBerumen, Michael L.
dc.date.published-online2015-04-01
dc.date.published-print2015-04-01


This item appears in the following Collection(s)

Show simple item record