Modeling oyster populations: The effect of density and food supply on production

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dc.acquisition-srcDownloaded from-Aquatic Sciences and Fisheries Abstractsen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorPowell ENen_US
dc.contributor.authorHofmann EEen_US
dc.contributor.authorKlinck JMen_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T17:14:23Z
dc.date.available2010-02-15T17:14:23Z
dc.date.issued1991 1991 Jun 23en_US
dc.degreeen_US
dc.description-en_US
dc.description-otheren_US
dc.description.abstractA time-dependent model has been developed to assess the response of oyster populations to environmental variables and the importance of population density in optimizing yield under varying climatic and hydrologic conditions. Food supply in a typical Gulf of Mexico bay, Galveston Bay, would appear to be just adequate in most years to maintain a healthy, productive oyster population. Any decline in food supply, by reduced food content, lower current velocity, lower temperature or increased population density, dramatically reduces yield and can eliminate reproductive capacity. The effect of temperature on filtration rate exerts an overriding influence, establishing, much more so than respiration, the energy balance of the organism, whether or not the population grows and reproduces, and to what extent current velocity and food supply affect productivity. The effect of decreased food supply, for any reason, is felt more strongly at higher latitudes. Large adult oysters probably have a negative energy balance during the winter in colder climes, except under the most favorable of food supply conditions. By contrast, higher temperatures at lower latitudes reduces somatic growth and, consequently, yield because more of the yearly net productivity is expended in reproductionen_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23069
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notes83. Annu. Meet. Natl. Shellfisheries Association, Portland, ME (USA)0730-8000EnglishJournal Article; Conference; SummaryMarineen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries50623.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesJournal of Shellfish Research [J. SHELLFISH RES.]en_US
dc.subjectASW,USA,Texas,Galveston Bayen_US
dc.subjectCrassostrea virginicaen_US
dc.subjectCurrent velocityen_US
dc.subjectdeclineen_US
dc.subjectenvironmental factorsen_US
dc.subjectFiltrationen_US
dc.subjectfood availabilityen_US
dc.subjectGalveston Bayen_US
dc.subjectgrowthen_US
dc.subjectMarine molluscsen_US
dc.subjectmathematical modelsen_US
dc.subjectO 8050 CONFERENCESen_US
dc.subjectOystersen_US
dc.subjectPopulation densityen_US
dc.subjectpopulation dynamicsen_US
dc.subjectPopulationsen_US
dc.subjectQ1 01442 Population dynamicsen_US
dc.subjectReproductionen_US
dc.subjectShellfishen_US
dc.subjectTemperatureen_US
dc.subjectTexasen_US
dc.subjectUSAen_US
dc.subjectwinteren_US
dc.subjectYielden_US
dc.titleModeling oyster populations: The effect of density and food supply on productionen_US
dc.typeCONFen_US
dc.universityen_US
dc.vol-issue()en_US

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