Quantifying the effects of environmental change on an oyster population: A modeling study

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dc.acquisition-srcDownloaded from-Web of Scienceen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorDekshenieks MMen_US
dc.contributor.authorHofmann EEen_US
dc.contributor.authorKlinck JMen_US
dc.contributor.authorPowell ENen_US
dc.contributor.otherEstuariesen_US
dc.date.accessioned2010-02-15T17:17:07Z
dc.date.available2010-02-15T17:17:07Z
dc.date.issued2000 Octen_US
dc.degreeen_US
dc.description593-610en_US
dc.description-otheren_US
dc.description.abstractThree models are combined to investigate the effects of changes in environmental conditions on the population structure of the Eastern oyster, Crassostrea virginica. The first model, a time-dependent model of the oyster population as described in Powell et al. (1992, 1994, 1995a,b, 1996, 1997) and Hofmann et al. (1992, 1994, 1995), tracks the distribution, development, spawning, and mortality of sessile oyster populations. The second model, a time-dependent larval growth model as described in Dekshenieks et al. (1993), simulates larval growth and mortality. The final model, a finite element hydrodynamic model, simulates the circulation in Galveston Bay, Texas. The coupled post-settlement-larval model (the oyster model) runs within the finite element grid at locations that include known oyster reef habitats. The oyster model was first forced with 5 yr of mean environmental conditions to provide a reference simulation for Galveston Bay. Additional simulations considered the effects of long-term increases and decreases in freshwater inflow and temperature, as well as decreases in food concentration and total seston on Galveston Bay oyster populations. In general, the simulations show that salinity is the primary environmental factor controling the spatial extent of oyster distribution within the estuary. Results also indicate a need to consider all environmental factors when attempting to predict the response of oyster populations; it is the superposition of a combination of these factors that determines the state of the population. The results from this study allow predictions to be made concerning the effects of environmental change on the status of oyster populations, both within Galveston Bay and within other estuarine systems supporting oyster populationsen_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23447
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesTimes Cited: 6ArticleEnglishDekshenieks, M. MUniv Calif Santa Cruz, Dept Ocean Sci, Earth & Marine Sci Bldg,1156 High St, Santa Cruz, CA 95064 USACited References Count: 36383QHPO BOX 368, LAWRENCE, KS 66044 USALAWRENCEen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries51095.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectPERKINSUS-MARINUSen_US
dc.subjectAmerican oysteren_US
dc.subjectCLIMATE-CHANGEen_US
dc.subjectGALVESTON BAYen_US
dc.subjectMANAGEMENTen_US
dc.subjectMORTALITYen_US
dc.subjectTEXASen_US
dc.subjectTERMen_US
dc.titleQuantifying the effects of environmental change on an oyster population: A modeling studyen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue23(5)en_US

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