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A size-based stock assessment model for invasive blue catfish in a Chesapeake Bay sub-estuary during 2001-2016

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dc.contributor.authorHilling, Corbin D.en
dc.contributor.authorJiao, Yanen
dc.contributor.authorFabrizio, Mary C.en
dc.contributor.authorAngermeier, Paul L.en
dc.contributor.authorBunch, Aaron J.en
dc.contributor.authorOrth, Donald J.en
dc.date.accessioned2023-06-12T15:02:30Zen
dc.date.available2023-06-12T15:02:30Zen
dc.date.issued2023-02en
dc.description.abstractStock assessment modeling provides a means to estimate the population dynamics of invasive fishes and may do so despite data limitations. Blue catfish (Ictalurus furcatus) were introduced to the Chesapeake Bay watershed to support recreational fisheries but also consume species of conservation need and economic importance. To assess management tradeoffs, managers need to understand the current status of the population and anticipate future population abundance and trends. A Bayesian size-based stock assessment model was used to estimate blue catfish abundance, fishing mortality, and size structure over time (2001-2016) in the tidal James River. The model estimated population size increases until around 2006, with declines in total abundance after 2011 and large blue catfish (>= 80 cm total length) after 2001. These first estimates of blue catfish population dynamics in the Chesapeake Bay region provide inputs for projection models to evaluate prospective management actions and identify monitoring needs.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesVirginia Department of Wildlife Resources; Virginia Sea Grant, Virginia Institute of Marine Science; U.S. Department of Agriculture; National Institute of Food and Agriculture; U.S. Geological Survey; Virginia Polytechnic Institute and State Universityen
dc.description.sponsorshipVirginia Department of Wildlife Resources; Virginia Sea Grant, Virginia Institute of Marine Science; U.S. Department of Agriculture; National Institute of Food and Agriculture; U.S. Geological Survey; Virginia Polytechnic Institute and State Universityen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1111/fme.12601en
dc.identifier.eissn1365-2400en
dc.identifier.issn0969-997Xen
dc.identifier.issue1en
dc.identifier.urihttp://hdl.handle.net/10919/115399en
dc.identifier.volume30en
dc.language.isoenen
dc.publisherWileyen
dc.rightsPublic Domain (U.S.)en
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.subjectBayesian estimationen
dc.subjectdata limitationsen
dc.subjectIctaluridaeen
dc.subjectJames Riveren
dc.subjectstatistical catch-at-length modelen
dc.titleA size-based stock assessment model for invasive blue catfish in a Chesapeake Bay sub-estuary during 2001-2016en
dc.title.serialFisheries Management and Ecologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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