Small scale spatial distribution of oysters (Crassostrea virginica) on oyster reefs.

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dc.acquisition-srcen_US
dc.call-noAcc# 2385en_US
dc.contract-noen_US
dc.contributor.authorPowell, E.N.en_US
dc.contributor.authorWhite, M.E.en_US
dc.contributor.authorWilson, E.A.en_US
dc.contributor.authorRay, S.M.en_US
dc.contributor.otherBulletin of Marine Scienceen_US
dc.date.accessioned2010-02-15T16:56:03Z
dc.date.available2010-02-15T16:56:03Z
dc.date.issued1987en_US
dc.degreeen_US
dc.descriptionp. 835-855.en_US
dc.description-otheren_US
dc.description.abstractThe small-scale spatial distribution of oysters was examined on 11 reefs in the Copano Bay - Aransas Bay area of the Texas coast. Small oysters (<= 2cm) were contagiously distributed (s^2/x > 1) and positively spatially autocorrelated; that is, small oysters were patchily distributed. Patch size ranged up to about 40 cm. Large oysters (> 5 cm) were less contagiously distributed and normally were negatively spatially autocorrelated; that is the number of large oysters on adjacent clumps tended to differ more (many vs. few) than would be expected by chance. Negative spatial autocorrelation was restricted to adjacent clumps < 12 cm apart. Consequently, as the oyster populations aged, their spatial distributions changed. The spatial distribution of large oysters on nearby clumps was affected by the number of large oysters distributed among the clumps. As the variance-to-mean ratio increased, the populations became more negatively spatially autocorrelated. Consequently, large oysters affected the survivorship of oysters on adjacent clumps. Mortality, produced perhaps by predation and disease, modulated by competition for food affecting the oyster's susceptibility to mortality, could explain these changes in distributional pattern.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeTexas coasten_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/20164
dc.latitudeen_US
dc.locationGBIC Collection file roomen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries2385.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectgeographical distributionen_US
dc.subjectAmerican oysteren_US
dc.subjectCrassostrea virginicaen_US
dc.subjectsurvivalen_US
dc.subjectmortalityen_US
dc.titleSmall scale spatial distribution of oysters (Crassostrea virginica) on oyster reefs.en_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue41(3)en_US

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