Spatial patterns of oyster distribution: A modeling study


1995 1917


Dekshenieks MM
Hofmann EE
Klinck JM
Powell EN
Rutgers-the State Univ. NBNUIMCS Grassle JP
Kelsey A
Oates E
Snelgrove PV

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A size-structured, time-dependent population model has been developed to investigate growth and mortality of larvae and adults of Crassostrea virginica. Growth and mortality rates for adults and larvae are regulated by environmental conditions (temperature, salinity, turbidity and food). This population model is coupled to a three-dimensional hydrodynamic model for the Galveston Bay system. Simulations designed to investigate the effects of environmental conditions on the population structure of the oyster, show that spatial differences in oyster distribution and density result from spatial differences in environmental conditions across the bay system. Bay regions with high oyster productivity have both moderate salinities and turbidities, while regions with lower oyster productivity experience extremes in these as well as other environmental conditions




ASW,USA,Texas,Galveston Bay, Crassostrea, Crassostrea virginica, Distribution, Ecology, environmental conditions, Environmental effects, Galveston Bay, geographical distribution, growth, Hydrodynamics, Marine molluscs, modelling, Mortality, O 1070 Ecology -Community Studies, Population structure, Q1 01383 Biogeography and biogeographic regions, Salinity, simulation, Temperature, Turbidity, USA