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Marine growth and morphometrics for three populations of Atlantic salmon from eastern Maine, USA

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dc.contributor.authorSheehan, T E
dc.contributor.authorKoclk, J E
dc.contributor.authorCadrin, S X
dc.contributor.authorLegault, C M
dc.contributor.authorAtkinson, E
dc.contributor.authorBengtson, D
dc.date2023-09-23T06:53:59.000
dc.date.accessioned2024-04-26T17:18:25Z
dc.date.available2024-04-26T17:18:25Z
dc.date.issued2005-01-01
dc.description.abstractSignificant differences in growth and prespawning body morphology were detected among three stocks of Atlantic salmon reared in a common marine environment. Smolts originating from river-specific broodstock of the Machias, East Machias, and Dennys populations were reared at two marine net-pen facilities for 25 months. Significant differences in stock-specific growth were observed among two stocks at both sites, suggesting a genetic basis for the observed phenotypic variation. There was a significant stock effect to the total measured phenotypic variation based on collected truss network analyses. Linear discriminant function analysis of a truss network of morphometric distances allowed for 73% accuracy of stock classification. A thin-plate spline procedure characterized the Machias body form as having a shortened narrow caudal peduncle region, a compressed body with an elongated trunk, and a deeper head region relative to the other two stocks. Phenotypic variation may be associated with hydrological characteristics of the Machias watershed.
dc.description.pages775-788
dc.identifier.urihttps://hdl.handle.net/20.500.14394/26878
dc.relation.ispartofTransactions of the American Fisheries Society
dc.source.issue3
dc.source.issue134
dc.source.statuspublished
dc.subjectanalysis
dc.subjectATLANTIC
dc.subjectAtlantic salmon
dc.subjectBODY
dc.subjectcharacteristics
dc.subjectclassification
dc.subjectDIFFERENCE
dc.subjectDISTANCE
dc.subjectENVIRONMENT
dc.subjectgenetic
dc.subjectgrowth
dc.subjectMaine
dc.subjectmarine
dc.subjectmarine environment
dc.subjectmorphology
dc.subjectmorphometric
dc.subjectmorphometrics
dc.subjectpopulation
dc.subjectPOPULATIONS
dc.subjectsalmon
dc.subjectsmolt
dc.subjectsmolts
dc.subjectstock
dc.subjectStocks
dc.subjectUSA
dc.subjectwatershed
dc.titleMarine growth and morphometrics for three populations of Atlantic salmon from eastern Maine, USA
dc.typearticle
dc.typearticle
digcom.contributor.authorSheehan, T E
digcom.contributor.authorKoclk, J E
digcom.contributor.authorCadrin, S X
digcom.contributor.authorLegault, C M
digcom.contributor.authorAtkinson, E
digcom.contributor.authorBengtson, D
digcom.identifierfishpassage_journal_articles/1747
digcom.identifier.contextkey2752823
digcom.identifier.submissionpathfishpassage_journal_articles/1747
dspace.entity.typePublication
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