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Precision and accuracy of Dahl-Lea back-calculated smolt lengths from adult scales of Atlantic salmon (Salmo salar L.)

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dc.contributor.authorHanson, Nora N
dc.contributor.authorSmith, Gordon W
dc.contributor.authorMiddlemas, Stewart J
dc.contributor.authorTodd, Christopher David
dc.date.accessioned2019-11-15T00:36:44Z
dc.date.available2019-11-15T00:36:44Z
dc.date.issued2019-01-29
dc.identifier256915050
dc.identifier13667299-42f5-4d76-8aee-c5adac2b9042
dc.identifier85059188554
dc.identifier000457463200022
dc.identifier.citationHanson , N N , Smith , G W , Middlemas , S J & Todd , C D 2019 , ' Precision and accuracy of Dahl-Lea back-calculated smolt lengths from adult scales of Atlantic salmon ( Salmo salar L. ) ' , Journal of Fish Biology , vol. 94 , no. 1 , pp. 183-186 . https://doi.org/10.1111/jfb.13863en
dc.identifier.issn0022-1112
dc.identifier.otherORCID: /0000-0002-9690-2839/work/60427289
dc.identifier.urihttps://hdl.handle.net/10023/18930
dc.description.abstractUsing tagged and recaptured Atlantic salmon Salmo salar (n = 106) the present analysis shows that the most commonly applied linear back-calculation method for estimating past length, the Dahl-Lea method, resulted in overestimation of the length of large smolts and underestimation of small smolts.  A correction equation (y = 0.53x + 6.23) for estimating true smolt length (y) from lengths back-calculated from adult scale measures (x) to account for these systematic discrepancies is proposed.
dc.format.extent1492704
dc.language.isoeng
dc.relation.ispartofJournal of Fish Biologyen
dc.subjectAllometryen
dc.subjectBack-calculationen
dc.subjectCirculien
dc.subjectGrowthen
dc.subjectIncrement analysisen
dc.subjectSalmo salaren
dc.subjectQH301 Biologyen
dc.subjectSH Aquaculture. Fisheries. Anglingen
dc.subjectNDASen
dc.subject.lccQH301en
dc.subject.lccSHen
dc.titlePrecision and accuracy of Dahl-Lea back-calculated smolt lengths from adult scales of Atlantic salmon (Salmo salar L.)en
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.identifier.doi10.1111/jfb.13863
dc.description.statusPeer revieweden
dc.date.embargoedUntil2019-11-15


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