Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks

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dc.contributorHáskóli Íslandsen_US
dc.contributorUniversity of Icelanden_US
dc.contributor.authorOng, Joyce J. L.
dc.contributor.authorMeekan, Mark G.
dc.contributor.authorHsu, Hua Hsun
dc.contributor.authorFanning, L. Paul
dc.contributor.authorCampana, Steven
dc.contributor.departmentLíf- og umhverfisvísindadeild (HÍ)en_US
dc.contributor.departmentFaculty of Life and Environmental Sciences (UI)en_US
dc.contributor.schoolVerkfræði- og náttúruvísindasvið (HÍ)en_US
dc.contributor.schoolSchool of Engineering and Natural Sciences (UI)en_US
dc.date.accessioned2021-01-15T13:12:01Z
dc.date.available2021-01-15T13:12:01Z
dc.date.issued2020-04-06
dc.descriptionPublisher's version (útgefin grein)en_US
dc.description.abstractConservation and management strategies for endangered and threatened species require accurate estimates of demographic parameters such as age and growth. The whale shark, Rhincodon typus, is the largest fish in the world and is highly valued in the eco-tourism sector. Despite conservation concerns and advances in our understanding of their life history, basic demographic parameters for growth, longevity and mortality are of questionable accuracy; previous growth studies could not agree whether the vertebral growth bands were formed annually or biannually. Here, we provide the first validation of the annual formation of growth bands within the vertebrae of the whale shark using bomb radiocarbon assays. Ages of up to 50 years were estimated from sectioned vertebrae of sharks collected in Taiwan and Pakistan. There was no cessation of the formation of growth bands in the vertebrae of older sharks and our study provides the oldest observed longevity for this species. Initial estimates of growth (k = 0.01–0.12) and natural mortality rates (M = 0.09–0.14) are consistent with those expected of long-lived sharks, which highlights their sensitivity to fishing pressure and conservation concerns.en_US
dc.description.sponsorshipThis work was supported by the Fisheries and Oceans Canada, US National Science Foundation Grant OCE-9985884, and the University of Iceland. Travel funding was provided by the Australian Institute of Marine Science.en_US
dc.description.versionPeer Revieweden_US
dc.format.extent188en_US
dc.identifier.citationOng JJL, Meekan MG, Hsu HH, Fanning LP and Campana SE (2020) Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks. Front. Mar. Sci. 7:188. doi: 10.3389/fmars.2020.00188en_US
dc.identifier.doi10.3389/fmars.2020.00188
dc.identifier.issn2296-7745
dc.identifier.journalFrontiers in Marine Scienceen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11815/2381
dc.language.isoenen_US
dc.publisherFrontiers Media SAen_US
dc.relation.ispartofseriesFrontiers in Marine Science;7
dc.relation.urlhttps://www.frontiersin.org/article/10.3389/fmars.2020.00188/fullen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAge determinationen_US
dc.subjectGrowth bandsen_US
dc.subjectLongevityen_US
dc.subjectRadiocarbonen_US
dc.subjectVertebraeen_US
dc.subjectWhale sharken_US
dc.subjectLífverur í útrýmingarhættuen_US
dc.subjectHvalháfuren_US
dc.subjectLífslíkuren_US
dc.titleAnnual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharksen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dcterms.licenseThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en_US

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