{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,25]],"date-time":"2026-01-25T21:09:45Z","timestamp":1769375385446,"version":"3.49.0"},"reference-count":50,"publisher":"Canadian Science Publishing","issue":"7","license":[{"start":{"date-parts":[[2009,7,1]],"date-time":"2009-07-01T00:00:00Z","timestamp":1246406400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Fish. Aquat. Sci."],"published-print":{"date-parts":[[2009,7]]},"abstract":"<jats:p> Life-span estimates for orange roughy ( Hoplostethus atlanticus ) range from ~20\u00a0years to well over 100\u00a0years. In this study, an improved lead\u2013radium dating technique provided independent age estimates from sagittal otoliths. This technique used the known properties of radioactivity for lead-210 and radium-226 to determine the validity of fish age estimates. An improvement to lead\u2013radium dating using mass spectrometry allowed the use of smaller samples than previously possible; therefore, an application was made to otolith cores, the first few years of otolith growth. This approach circumvented the use of whole otoliths and alleviated many of the assumptions that were necessary in previous lead\u2013radium dating applications. Hence, it was possible to critically evaluate lead\u2013radium dating as a tool in fish age validation. The measurement of lead\u2013radium ratios for a series of age groups that consisted of otolith cores, grouped based on growth-zone counts from thin sections, showed a high degree of correlation to the expected lead\u2013radium ingrowth curve. This finding provided support for age estimation procedures using thin otolith sectioning. As independent estimates of age, the results indicated that fish in the oldest age group were at least 93\u00a0years old, providing robust support for a centenarian life span. <\/jats:p>","DOI":"10.1139\/f09-059","type":"journal-article","created":{"date-parts":[[2009,7,8]],"date-time":"2009-07-08T17:03:18Z","timestamp":1247072598000},"page":"1130-1140","source":"Crossref","is-referenced-by-count":41,"title":["Lead\u2013radium dating of orange roughy (Hoplostethus atlanticus): validation of a centenarian life span"],"prefix":"10.1139","volume":"66","author":[{"given":"Allen H.","family":"Andrews","sequence":"first","affiliation":[{"name":"Rhodes University, Department of Ichthyology and Fisheries Science, Grahamstown 6140, South Africa."},{"name":"National Institute of Water and Atmospheric Research, P.O. Box 14-901, Kilbirnie, Wellington, New\u00a0Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dianne M.","family":"Tracey","sequence":"additional","affiliation":[{"name":"Rhodes University, Department of Ichthyology and Fisheries Science, Grahamstown 6140, South Africa."},{"name":"National Institute of Water and Atmospheric Research, P.O. Box 14-901, Kilbirnie, Wellington, New\u00a0Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew R.","family":"Dunn","sequence":"additional","affiliation":[{"name":"Rhodes University, Department of Ichthyology and Fisheries Science, Grahamstown 6140, South Africa."},{"name":"National Institute of Water and Atmospheric Research, P.O. Box 14-901, Kilbirnie, Wellington, New\u00a0Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"155","reference":[{"key":"rg1\/ref1","first-page":"7","volume":"24","author":"Allain V.","year":"2000","journal-title":"Cybium"},{"key":"rg2\/ref2","unstructured":"Andrews, A.H. 2009. Lead\u2013radium dating of two deep-water fishes from the southern hemisphere, Patagonian toothfish (Dissostichus eleginoides) and orange roughy (Hoplostethus atlanticus). Ph.D. thesis, Rhodes University, Grahamstown, South Africa."},{"key":"rg3\/ref3","unstructured":"Andrews, A.H., and Tracey, D.M. 2003. Age validation of deepwater fish species, with particular reference to New Zealand orange roughy, black oreo, smooth oreo, and black cardinalfish. Final Research Report for Ministry of Fisheries Research Project DEE2000\/02 Objective 1, National Institute of Water and Atmospheric Research, Wellington, New Zealand."},{"key":"rg4\/ref4","doi-asserted-by":"publisher","DOI":"10.1139\/cjfas-56-8-1339"},{"key":"rg5\/ref5","doi-asserted-by":"publisher","DOI":"10.1139\/cjfas-56-8-1329"},{"key":"rg6\/ref6","doi-asserted-by":"publisher","DOI":"10.1071\/MF01126"},{"key":"rg7\/ref7","doi-asserted-by":"publisher","DOI":"10.1071\/MF04224"},{"key":"rg8\/ref8","doi-asserted-by":"publisher","DOI":"10.1071\/MF07074"},{"key":"rg9\/ref9","doi-asserted-by":"publisher","DOI":"10.1139\/cjfas-58-6-1244"},{"key":"rg11\/ref11","doi-asserted-by":"crossref","first-page":"1395","DOI":"10.1139\/f79-199","volume":"36","author":"Beamish R.J.","year":"1979","journal-title":"J. Fish. Res. Board Can."},{"key":"rg12\/ref12","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1016\/j.pocean.2006.02.005","volume":"68","author":"Beamish R.J.","year":"2006","journal-title":"Prog. Oceanogr."},{"key":"rg13\/ref13","doi-asserted-by":"publisher","DOI":"10.1577\/1548-8446(2004)29[23:FSVPOA]2.0.CO;2"},{"key":"rg14\/ref14","unstructured":"Boyer, D., Kirchner, C., McAllister, M., Staby, A., and Staalesen, B. 2001. The orange roughy fishery of Namibia: lessons to be learned about managing a developing fishery. In A decade of Namibian fisheries science. Edited by A.I.L. Payne, S.C. Pillar, and R.J.M. Crawford. S. Afr. J. Mar. Sci. 23: 205\u2013222."},{"key":"rg15\/ref15","unstructured":"Branch, T.A. 2001. A review of orange roughy Hoplostethus atlanticus fisheries, estimation methods, biology and stock structure. In A decade of Namibian fisheries science. Edited by A.I.L. Payne, S.C. Pillar, and R.J.M. Crawford. S. Afr. J. Mar. Sci. 23: 181\u2013203."},{"key":"rg18\/ref18","doi-asserted-by":"publisher","DOI":"10.1016\/S0531-5565(00)00239-4"},{"key":"rg19\/ref19","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8649.2001.tb00127.x"},{"key":"rg20\/ref20","doi-asserted-by":"publisher","DOI":"10.1139\/f90-017"},{"key":"rg21\/ref21","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(01)00240-5"},{"key":"rg22\/ref22","unstructured":"Clark, M., Tracey, D., Stevens, D., and Coburn, R. 1999. Age and growth of orange roughy from Namibian waters. Final report by National Institute for Water and Atmospheric Research for the Namibian Ministry of Fisheries and Marine Resources. NIWA Client Report WLG99\/29. [Permission to cite provided by Ben van Zyl, Namibian Ministry of Fisheries and Marine Resources, 17 October 2007.]"},{"key":"rg23\/ref23","unstructured":"Clark, M.R., Vinnichenko, V.I., Gordon, J.D.M., Beck-Bulat, G.Z., Kukharev, N.N., and Kakora, A.F. 2007. Large-scale distant-water trawl fisheries on seamounts. In Seamounts: ecology, fisheries and conservation. Edited by T.J. Pitcher, T. Morato, P.J.B. Hart, M.R. Clark, N. Haggan, and R.S. Santos. Fish and Aquatic Resources Series 12, Blackwell Publishing, Oxford, UK. pp.\u00a0361\u2013399."},{"key":"rg24\/ref24","unstructured":"Dunn, M.R. 2006. CPUE analysis and assessment of the Northeast Chatham Rise orange roughy stock (part of ORH 3B) to the end of the 2003\u201304 fishing year. New Zealand Fisheries Assessment Report 2006\/59, National Institute of Water and Atmospheric Research, Wellington, New Zealand."},{"key":"rg25\/ref25","doi-asserted-by":"publisher","DOI":"10.1007\/BF01319387"},{"key":"rg26\/ref26","doi-asserted-by":"publisher","DOI":"10.1007\/BF00347120"},{"key":"rg27\/ref27","doi-asserted-by":"publisher","DOI":"10.1139\/f03-038"},{"key":"rg28\/ref28","unstructured":"Francis, R.I.C.C. 2006. Some recent problems in New Zealand orange roughy assessments. New Zealand Fisheries Assessment Report 2006\/43, National Institute of Water and Atmospheric Research, Wellington, New Zealand."},{"key":"rg29\/ref29","first-page":"337","volume":"76","author":"Francis R.I.C.C.","year":"2005","journal-title":"Bull. Mar. Sci."},{"key":"rg30\/ref30","doi-asserted-by":"publisher","DOI":"10.1007\/s002270050211"},{"key":"rg31\/ref31","doi-asserted-by":"crossref","first-page":"543","DOI":"10.2331\/fishsci.64.543","volume":"64","author":"Gauldie R.W.","year":"1998","journal-title":"Fish. Sci."},{"key":"rg32\/ref32","doi-asserted-by":"publisher","DOI":"10.1046\/j.1444-2906.2000.00157.x"},{"key":"rg33\/ref33","doi-asserted-by":"publisher","DOI":"10.1016\/S1095-6433(98)10082-X"},{"key":"rg34\/ref34","first-page":"267","volume":"51","author":"Gauldie R.W.","year":"2001","journal-title":"Vie Milieu"},{"key":"rg35\/ref35","unstructured":"Green, C., Robertson, S., and Krusic-Golub, K. 2002. Age and growth of orange roughy, Hoplostethus atlanticus, from the South Tasman Rise. Final Report to Diversity Sustainable Development Consultants. Marine and Freshwater Resources Institute, P.O. Box 114, Queenscliff, Victoria 3225, Australia."},{"key":"rg37\/ref37","unstructured":"Kalish, J.M. 2002. Use of the bomb radiocarbon chronometer to validate fish age. Final Report FRDC Project 93\/109. Fisheries Research and Development Corporation, Canberra, Australia."},{"key":"rg38\/ref38","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(01)00339-3"},{"key":"rg39\/ref39","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(00)00155-7"},{"key":"rg40\/ref40","doi-asserted-by":"publisher","DOI":"10.1139\/f95-820"},{"key":"rg43\/ref43","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(01)00351-4"},{"key":"rg44\/ref44","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1080\/00288330.1990.9516406","volume":"24","author":"Mace P.M.","year":"1990","journal-title":"N.Z. J. Mar. Freshw. Res."},{"key":"rg45\/ref45","doi-asserted-by":"crossref","first-page":"241","DOI":"10.2989\/025776101784528827","volume":"23","author":"McAllister M.K.","year":"2001","journal-title":"S. Afr. J. Mar. Sci."},{"key":"rg47\/ref47","unstructured":"Morato, T., and Clark, M.R. 2007. Seamount fishes: ecology and life histories. In Seamounts: ecology, fisheries and conservation. Edited by T.J. Pitcher, T. Morato, P.J.B. Hart, M.R. Clark, N. Haggan, and R.S. Santos. Fish and Aquatic Resources Series 12, Blackwell Publishing, Oxford, UK. pp.\u00a0170\u2013188."},{"key":"rg49\/ref49","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1080\/00288330.1987.9516225","volume":"21","author":"Pankhurst N.W.","year":"1987","journal-title":"N.Z. J. Mar. Freshw. Res."},{"key":"rg51\/ref51","doi-asserted-by":"publisher","DOI":"10.1016\/0300-9629(95)02094-2"},{"key":"rg52\/ref52","unstructured":"Sissenwine, M.P., and Mace, P.M. 2007. Can deep water fisheries be managed sustainably? In Report and documentation of the expert consultation on deep-sea fisheries of the high seas, Bangkok, Thailand, 21\u201323 November 2006. FAO Fisheries Report No.\u00a0838. FAO, Rome, Italy. pp.\u00a061\u2013111."},{"key":"rg53\/ref53","unstructured":"Smith, J.N., Nelson, R., and Campana, S.E. 1991. The use of Pb-210\/Ra-226 and Th-228\/Ra-228 dis-equilibria in the ageing of otoliths of marine fish. In Radionuclides in the study of marine processes. Edited by P.J. Kershaw and D.S. Woodhead. Elsevier, New York. pp.\u00a0350\u2013359."},{"key":"rg54\/ref54","doi-asserted-by":"publisher","DOI":"10.1139\/f95-041"},{"key":"rg55\/ref55","doi-asserted-by":"publisher","DOI":"10.1016\/j.fishres.2005.03.003"},{"key":"rg56\/ref56","doi-asserted-by":"crossref","first-page":"67","DOI":"10.1080\/00288330.1999.9516858","volume":"33","author":"Tracey D.M.","year":"1999","journal-title":"N.Z. J. Mar. Freshw. Res."},{"key":"rg57\/ref57","doi-asserted-by":"publisher","DOI":"10.1139\/f94-236"},{"key":"rg58\/ref58","doi-asserted-by":"publisher","DOI":"10.1007\/BF02036556"},{"key":"rg59\/ref59","unstructured":"Whitehead, N.E., and Ditchburn, R.G. 1996. Dating hapuku otoliths using 210Pb\/226Ra, with comments on dating orange roughy otoliths. Institute of Geological and Nuclear Sciences Science Report No. 96\/15, Institute of Geological and Nuclear Sciences Ltd., Lower Hutt, New Zealand."}],"container-title":["Canadian Journal of Fisheries and Aquatic Sciences"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/full-xml\/10.1139\/F09-059","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/pdf\/10.1139\/F09-059","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,1,6]],"date-time":"2020-01-06T04:09:42Z","timestamp":1578283782000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/10.1139\/F09-059"}},"subtitle":[],"editor":[{"given":"Bronwyn","family":"Gillanders","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2009,7]]},"references-count":50,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2009,7,1]]}},"alternative-id":["10.1139\/F09-059"],"URL":"https:\/\/doi.org\/10.1139\/f09-059","relation":{},"ISSN":["0706-652X","1205-7533"],"issn-type":[{"value":"0706-652X","type":"print"},{"value":"1205-7533","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,7]]}}}