Sangam: A Confluence of Knowledge Streams

Population Genetic Assessment of Anadromous and Resident Striped Bass (Morone saxatilis) in the Roanoke River System, Eastern United States

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dc.contributor Fish and Wildlife Conservation
dc.creator Harris, Sheila C.
dc.creator Cope, W. Robert
dc.creator Wirgin, Isaac
dc.creator Hallerman, Eric M.
dc.date 2020-08-21T15:04:40Z
dc.date 2020-08-21T15:04:40Z
dc.date 2020-08-07
dc.date 2020-08-21T13:49:55Z
dc.date.accessioned 2023-03-01T18:53:12Z
dc.date.available 2023-03-01T18:53:12Z
dc.identifier Harris, S.C.; Cope, W.R.; Wirgin, I.; Hallerman, E.M. Population Genetic Assessment of Anadromous and Resident Striped Bass (Morone saxatilis) in the Roanoke River System, Eastern United States. Fishes 2020, 5, 24.
dc.identifier http://hdl.handle.net/10919/99820
dc.identifier https://doi.org/10.3390/fishes5030024
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/281699
dc.description Striped bass is the subject of important commercial and sport fisheries in North America. The Roanoke River drainage&mdash;especially Smith Mountain Lake, Leesville Lake, and Kerr Reservoir&mdash;has popular recreational striped bass fisheries. After construction of five hydroelectric dams, populations became landlocked, declined, and have been supplemented by stocking. A key basis for responsibly augmenting populations is to characterize genetic variation and incorporate the findings into responsible hatchery and stocking practices. Genetic variation at 12 microsatellite DNA loci was evaluated among 837 striped bass representing 16 collections across the native range; populations from rivers in South Carolina, North Carolina, Chesapeake Bay, and Hudson River were screened to provide context for assessing genetic structure within the Roanoke system. Analysis of population genetic differentiation showed landlocked Roanoke River striped bass to be distinctive. Subject to genetic isolation, high <i>M</i> ratios, and relatively low <i>N</i><sub>e</sub> estimates suggest loss of genetic variation, and relatedness analysis showed heightened frequencies of related individuals. These insights into population genetics, demographics, and existing guidelines for broodstock acquisition and mating designs can inform genetically cognizant hatchery management and stocking for striped bass in the Roanoke River drainage. In particular, we recommend the use of larger numbers of breeders and factorial mating designs to increase the genetic diversity of propagated striped bass stocked within the Roanoke River drainage.
dc.description Published version
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.publisher MDPI
dc.rights Creative Commons Attribution 4.0 International
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.subject microsatellite DNA
dc.subject dams
dc.subject random genetic drift
dc.subject fisheries management
dc.subject fish stocking
dc.title Population Genetic Assessment of Anadromous and Resident Striped Bass (Morone saxatilis) in the Roanoke River System, Eastern United States
dc.title Fishes
dc.type Article - Refereed
dc.type Text
dc.type StillImage


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