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dc.contributor.authorDew, J. R.en
dc.contributor.authorBerkson, J.en
dc.contributor.authorHallerman, Eric M.en
dc.contributor.authorAllen, S. K.en
dc.date.accessioned2014-05-14T14:36:47Zen
dc.date.available2014-05-14T14:36:47Zen
dc.date.issued2003-10en
dc.identifier.citationDew, J. R.; Berkson, J.; Hallerman, E. M.; Allen, S. K. (2003). "A model for assessing the likelihood of self-sustaining populations resulting from commercial production of triploid Suminoe oysters (Crassostrea ariakensis) in Chesapeake Bay," Fishery Bulletin, 101(4), p. 758; http://fishbull.noaa.gov/1014/05dewfis.pdfen
dc.identifier.issn0090-0656en
dc.identifier.urihttp://hdl.handle.net/10919/48007en
dc.description.abstractCulture of a non-native species, such as the Suminoe oyster (Crassostrea ariakensis), could offset the harvest of the declining native eastern oyster (Crassostrea virginica) fishery in Chesapeake Bay. Because of possible ecological impacts from introducing a fertile non-native species, introduction of sterile triploid oysters has been proposed. However, recent data show that a small percentage of triploid individuals progressively revert toward diploidy, introducing the possibility that Suminoe oysters might establish self-sustaining populations. To assess the risk of Suminoe oyster populations becoming established in Chesapeake Bay, a demographic population model was developed. Parameters modeled were salinity, stocking density, reversion rate, reproductive potential, natural and harvest-induced mortality, growth rates, and effects of various management strategies, including harvest strategies. The probability of a Suminoe oyster population becoming self-sustaining decreased in the model when oysters are grown at low salinity sites, certainty of harvest is high, minimum shell length-at-harvest is small, and stocking density is low. From the results of the model, we suggest adopting the proposed management strategies shown by the model to decrease the probability of a Suminoe oyster population becoming self-sustaining. Policy makers and fishery managers can use the model to predict potential outcomes of policy decisions, supporting the ability to make science-based policy decisions about the proposed introduction of triploid Suminoe oysters into the Chesapeake Bay.en
dc.description.sponsorshipVirginia Sea Grant College Consortiumen
dc.language.isoen_USen
dc.publisherNational Marine Fisheries Service Scientific Publication Officeen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectgigas thunbergen
dc.subjectvirginica gmelinen
dc.subjectpacific oystersen
dc.subjectrisk assessmenten
dc.subjecteastern oysteren
dc.subjectlarvaeen
dc.subjecttetraploidsen
dc.subjectmanagementen
dc.subjectshellfishen
dc.subjectsalinityen
dc.subjectfisheriesen
dc.titleA model for assessing the likelihood of self-sustaining populations resulting from commercial production of triploid Suminoe oysters (Crassostrea ariakensis) in Chesapeake Bayen
dc.typeArticleen
dc.contributor.departmentFish and Wildlife Conservationen
dc.identifier.urlhttp://fishbull.noaa.gov/1014/05dewfis.pdfen
dc.date.accessed2014-05-12en
dc.title.serialFishery Bulletinen


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