Population Genetics of Brook Trout in the Southern Appalachian Mountains

Simple item page
dc.contributor.authorKazyak, David C.en
dc.contributor.authorLubinski, Barbara A.en
dc.contributor.authorKulp, Matt A.en
dc.contributor.authorPregler, Kasey C.en
dc.contributor.authorWhiteley, Andrew R.en
dc.contributor.authorHallerman, Eric M.en
dc.contributor.authorCoombs, Jason A.en
dc.contributor.authorKanno, Yoichiroen
dc.contributor.authorRash, Jacob M.en
dc.contributor.authorMorgan, Raymond P. IIen
dc.contributor.authorHabera, Jimen
dc.contributor.authorHenegar, Jasonen
dc.contributor.authorWeathers, T. Caseyen
dc.contributor.authorSell, Matthew T.en
dc.contributor.authorRabern, Anthonyen
dc.contributor.authorRankin, Danen
dc.contributor.authorKing, Tim L.en
dc.date.accessioned2022-02-06T16:52:23Zen
dc.date.available2022-02-06T16:52:23Zen
dc.date.issued2022-01-07en
dc.date.updated2022-02-06T16:52:18Zen
dc.description.abstractBroad-scale patterns of genetic diversity for Brook Trout Salvelinus fontinalis remain poorly understood across their endemic range in the eastern United States. We characterized variation at 12 microsatellite loci in 22,020 Brook Trout among 836 populations from Georgia, USA, to Quebec, Canada, to the western Great Lakes region. Within-population diversity was typically lower in the southern Appalachian Mountains relative to the mid-Atlantic and northeastern regions. Effective population sizes in the southern Appalachians were often very small, with many estimates less than 30 individuals. The population genetics of Brook Trout in the southern Appalachians are far more complex than a conventionally held simple “northern” versus “southern” dichotomy would suggest. Contemporary population genetic variation was consistent with geographic expansion of Brook Trout from Mississippian, mid-Atlantic, and Acadian glacial refugia as well as differentiation among drainages within these broader clades. Genetic variation was pronounced among drainages (57.4% of overall variation occurred among 10-digit hydrologic unit code [HUC10] units or larger units) but was considerable even at fine spatial scales (13% of variation occurred among collections within HUC12 drainage units). Remarkably, 87.2% of individuals were correctly assigned to their collection of origin. While comparisons with fish from existing major hatcheries showed impacts of stocking in some populations, genetic introgression did not overwhelm the signal of broad-scale patterns of population genetic structure. Although our results reveal deep genetic structure in Brook Trout over broad spatial extents, fine-scale population structuring is prevalent across the southern Appalachians. Our findings highlight the distinctiveness and vulnerability of many Brook Trout populations in the southern Appalachians and have important implications for wild Brook Trout management. To facilitate application of our findings by conservation practitioners, we provide an interactive online visualization tool to allow our results to be explored at management-relevant scales.en
dc.description.versionPublished versionen
dc.format.extent23 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1002/tafs.10337en
dc.identifier.eissn1548-8659en
dc.identifier.issn0002-8487en
dc.identifier.orcidHallerman, Eric [0000-0002-5839-858X]en
dc.identifier.urihttp://hdl.handle.net/10919/108153en
dc.language.isoenen
dc.publisherWileyen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000739804200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsPublic Domainen
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.subjectLife Sciences & Biomedicineen
dc.subjectFisheriesen
dc.subjectCHARR SALVELINUS-FONTINALISen
dc.subjectMITOCHONDRIAL-DNA VARIATIONen
dc.subjectEXOTIC RAINBOW-TROUTen
dc.subjectR-PACKAGEen
dc.subjectCOMPARATIVE PHYLOGEOGRAPHYen
dc.subjectPOSTGLACIAL DISPERSALen
dc.subjectINSULAR POPULATIONen
dc.subjectALLOZYME VARIATIONen
dc.subjectFOOD LIMITATIONen
dc.subjectFRESH-WATERen
dc.subject0704 Fisheries Sciencesen
dc.subjectFisheriesen
dc.titlePopulation Genetics of Brook Trout in the Southern Appalachian Mountainsen
dc.title.serialTransactions of the American Fisheries Societyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherEarly Accessen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Natural Resources & Environmenten
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/Fish and Wildlife Conservationen
pubs.organisational-group/Virginia Tech/University Research Institutesen
pubs.organisational-group/Virginia Tech/University Research Institutes/Fralin Life Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Natural Resources & Environment/CNRE T&R Facultyen
pubs.organisational-group/Virginia Tech/University Research Institutes/Fralin Life Sciences/Durelle Scotten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Kazyak et al. 2021.pdf
Size:
5.4 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download

Collections

All Faculty Deposits
Scholarly Works, Fish and Wildlife Conservation