Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks
Publisher's version (útgefin grein) 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-touris...
Published in: | Frontiers in Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://hdl.handle.net/20.500.11815/2381 https://doi.org/10.3389/fmars.2020.00188 |
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/2381 2023-05-15T16:51:06+02:00 Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks Ong, Joyce J. L. Meekan, Mark G. Hsu, Hua Hsun Fanning, L. Paul Campana, Steven Líf- og umhverfisvísindadeild (HÍ) Faculty of Life and Environmental Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland 2020-04-06 188 https://hdl.handle.net/20.500.11815/2381 https://doi.org/10.3389/fmars.2020.00188 en eng Frontiers Media SA Frontiers in Marine Science;7 https://www.frontiersin.org/article/10.3389/fmars.2020.00188/full 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 2296-7745 https://hdl.handle.net/20.500.11815/2381 Frontiers in Marine Science doi:10.3389/fmars.2020.00188 info:eu-repo/semantics/openAccess Age determination Growth bands Longevity Radiocarbon Vertebrae Whale shark Lífverur í útrýmingarhættu Hvalháfur Lífslíkur info:eu-repo/semantics/article 2020 ftopinvisindi https://doi.org/20.500.11815/2381 https://doi.org/10.3389/fmars.2020.00188 2022-11-18T06:52:06Z Publisher's version (útgefin grein) 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. 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. Peer Reviewed Article in Journal/Newspaper Iceland Opin vísindi (Iceland) Canada Frontiers in Marine Science 7 |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Age determination Growth bands Longevity Radiocarbon Vertebrae Whale shark Lífverur í útrýmingarhættu Hvalháfur Lífslíkur |
spellingShingle |
Age determination Growth bands Longevity Radiocarbon Vertebrae Whale shark Lífverur í útrýmingarhættu Hvalháfur Lífslíkur Ong, Joyce J. L. Meekan, Mark G. Hsu, Hua Hsun Fanning, L. Paul Campana, Steven Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks |
topic_facet |
Age determination Growth bands Longevity Radiocarbon Vertebrae Whale shark Lífverur í útrýmingarhættu Hvalháfur Lífslíkur |
description |
Publisher's version (útgefin grein) 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. 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. Peer Reviewed |
author2 |
Líf- og umhverfisvísindadeild (HÍ) Faculty of Life and Environmental Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland |
format |
Article in Journal/Newspaper |
author |
Ong, Joyce J. L. Meekan, Mark G. Hsu, Hua Hsun Fanning, L. Paul Campana, Steven |
author_facet |
Ong, Joyce J. L. Meekan, Mark G. Hsu, Hua Hsun Fanning, L. Paul Campana, Steven |
author_sort |
Ong, Joyce J. L. |
title |
Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks |
title_short |
Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks |
title_full |
Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks |
title_fullStr |
Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks |
title_full_unstemmed |
Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks |
title_sort |
annual bands in vertebrae validated by bomb radiocarbon assays provide estimates of age and growth of whale sharks |
publisher |
Frontiers Media SA |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.11815/2381 https://doi.org/10.3389/fmars.2020.00188 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Frontiers in Marine Science;7 https://www.frontiersin.org/article/10.3389/fmars.2020.00188/full 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 2296-7745 https://hdl.handle.net/20.500.11815/2381 Frontiers in Marine Science doi:10.3389/fmars.2020.00188 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/2381 https://doi.org/10.3389/fmars.2020.00188 |
container_title |
Frontiers in Marine Science |
container_volume |
7 |
_version_ |
1766041220840161280 |