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

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Ong, Joyce J. L.
dc.contributor.author Meekan, Mark G.
dc.contributor.author Hsu, Hua Hsun
dc.contributor.author Fanning, L. Paul
dc.contributor.author Campana, Steven
dc.date.accessioned 2021-01-15T13:12:01Z
dc.date.available 2021-01-15T13:12:01Z
dc.date.issued 2020-04-06
dc.identifier.citation Ong 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.2020.00188
dc.identifier.issn 2296-7745
dc.identifier.uri https://hdl.handle.net/20.500.11815/2381
dc.description Publisher's version (útgefin grein)
dc.description.abstract Conservation 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.
dc.description.sponsorship This 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.
dc.format.extent 188
dc.language.iso en
dc.publisher Frontiers Media SA
dc.relation.ispartofseries Frontiers in Marine Science;7
dc.rights info:eu-repo/semantics/openAccess
dc.subject Age determination
dc.subject Growth bands
dc.subject Longevity
dc.subject Radiocarbon
dc.subject Vertebrae
dc.subject Whale shark
dc.subject Lífverur í útrýmingarhættu
dc.subject Hvalháfur
dc.subject Lífslíkur
dc.title Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks
dc.type info:eu-repo/semantics/article
dcterms.license This 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.
dc.description.version Peer Reviewed
dc.identifier.journal Frontiers in Marine Science
dc.identifier.doi 10.3389/fmars.2020.00188
dc.relation.url https://www.frontiersin.org/article/10.3389/fmars.2020.00188/full
dc.contributor.department Líf- og umhverfisvísindadeild (HÍ)
dc.contributor.department Faculty of Life and Environmental Sciences (UI)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

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