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Distribution and abundance of scaup using baitfish and sportfish farms in eastern Arkansas

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dc.contributor.authorClements, Stephen A.en
dc.contributor.authorDorr, Brian S.en
dc.contributor.authorDavis, J. Brianen
dc.contributor.authorRoy, Luke A.en
dc.contributor.authorEngle, Carole R.en
dc.contributor.authorHanson-Dorr, Katie C.en
dc.contributor.authorKelly, Anita M.en
dc.contributor.departmentVirginia Agricultural Experiment Stationen
dc.date.accessioned2021-02-12T15:26:15Zen
dc.date.available2021-02-12T15:26:15Zen
dc.date.issued2020-11en
dc.description.abstractArkansas' bait- and sportfish facilities are commonly used by various piscivorous bird species, including lesser scaup (Aythya affinis) and greater scaup (A. marila) that consume substantial quantities of fish. To mediate this predation, farmers implement extensive bird harassment programs that create additional costs to fish loss, thus research investigating the distribution and abundance of scaup is needed to help farmers allocate their bird harassment efforts more efficiently. In winters 2016-2017 and 2017-2018 we conducted 1,368 pond surveys to investigate pond use by scaup on farms during birds' regular wintering period (i.e., November-March). We used intrinsic and extrinsic pond-level and farm-level characteristics as explanatory variables in generalized linear models to reveal characteristics associated with increased scaup use. Inter-annual differences in scaup use were also considered in each model. Our pond-level model showed that scaup occurred more frequently on larger golden shiner (Notemigonus crysoleucas) and fathead minnow (Pimephales promelas) ponds stocked at greater densities, particularly during our second study winter. Our farm-level model suggested that farms further from major rivers and with an average pond size of approximately eight hectares had the greatest probability of scaup use. Producers can apply findings from our models to implement bird harassment efforts in times and locations where scaup predation is more likely to occur.en
dc.description.notesSouthern Regional Aquaculture Center, Grant/Award Number: 2016-38500-25752en
dc.description.sponsorshipSouthern Regional Aquaculture Center [2016-38500-25752]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1111/jwas.12752en
dc.identifier.eissn1749-7345en
dc.identifier.issn0893-8849en
dc.identifier.urihttp://hdl.handle.net/10919/102356en
dc.language.isoenen
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectaquacultureen
dc.subjectArkansasen
dc.subjectAythya sppen
dc.subjectscaupen
dc.subjectwildlife damage managementen
dc.titleDistribution and abundance of scaup using baitfish and sportfish farms in eastern Arkansasen
dc.title.serialJournal of the World Aquaculture Societyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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