Nutrient cycling in Galveston Bay, II - factors regulating their concentrations in the water column.

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dc.acquisition-srcen_US
dc.contract-noen_US
dc.contributor.authorSantschi, P.H.en_US
dc.contributor.authorSantschi, R.en_US
dc.contributor.authorStone, H.en_US
dc.contributor.otherProceedings of the Texas Academy of Science, 93rd Meeting.en_US
dc.date.accessioned2010-02-15T16:59:09Z
dc.date.available2010-02-15T16:59:09Z
dc.date.issued1990en_US
dc.degreeen_US
dc.descriptionp. 89.en_US
dc.description-otheren_US
dc.description.abstractIn order to investigate factors controlling concentrations of nutrients in Galveston Bay, we carried out linear correlation analysis of chemical data sets from one of the stations occupied monthly by the Texas Water Commission (TWC): mid-Galveston Bay (half-way between Smith and Eagle Pt.). We made the following observations: The annual pattern of phosphate, total inorganic nitrogen and chl.a in the last 10 years exhibits strong seasonal cycles, which appear to be related to temperature. Optimum (P<0.001) cross correlations with temperature, T, were observed for phosphate data, with phase shifts of one month (i.e. PO4 maximum 1 month after T maximum, i.e. in September). This could indicate higher rates of phosphate regeneration from the sediments in the fall. The chl.a data from the last 3 years cross correlated well with temperature when the inorganic nitrogen significantly (p<0.001) and inversely correlates with salinity, with correlation optima at a phase shift of one month after the salinity optimum. Such a pattern could indicate nitrogen inputs from storm sewer overflows during high rainfall events. Frequent observations of close to zero concentration of nitrate in the summer months could indicate nitrogen losses by denitrification in the Bay.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/20696
dc.latitudeen_US
dc.locationNOT AVAILABLE IN-HOUSE.en_US
dc.longitudeen_US
dc.notesen_US
dc.publisheren_US
dc.relation.ispartofseries2891.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectnutrientsen_US
dc.subjectdata collectionsen_US
dc.subjectphosphatesen_US
dc.subjectsedimentsen_US
dc.subjectwater columnen_US
dc.subjectnitrogenen_US
dc.titleNutrient cycling in Galveston Bay, II - factors regulating their concentrations in the water column.en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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