A seasonal survey of carbohydrates and uronic acids in the Trinity River, Texas

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dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorHung, CCen_US
dc.contributor.authorWarnken, KWen_US
dc.contributor.authorSantschi, PHen_US
dc.contributor.otherOrganic Geochemistryen_US
dc.date.accessioned2010-02-15T16:46:01Z
dc.date.available2010-02-15T16:46:01Z
dc.date.issued2005en_US
dc.degreeen_US
dc.descriptionpgs. 463-474en_US
dc.description-otheren_US
dc.description.abstractDue to their potential significance as indicators of ecological health, the biogeochemical cycling of carbohydrates and uronic acids was investigated in the Trinity River Texas, during 2000 2001. Concentrations of dissolved organic carbon (DOC), total carbohydrates (TCHO), polysaccharides (PCHO), monosaccharides (MCHO), uronic acids (URA), as well as of oxygen, suspended particulate matter, nutrients and trace metals (Cu, Pb, Cd) were assessed at various stages of discharge. TCHO/DOC ratios, as well as nutrient and hydrogen ion concentrations, were inversely related to temperature, which suggests that biological processes in Lake Livingston, the largest freshwater reservoir along the Trinity River, are not only regulating nutrient concentrations but also the preferential degradation of carbohydrates over that of bulk DOC. However, uronic acids were selectively preserved during this temperature controlled biological process, as is evident from the positive correlation of URA/TCHO ratios and temperature. Thus, uronic acids are more refractory compounds than bulk TCHO. Significant correlations between TCHO and dissolved Cu, Pb and Cd suggest that their pathways and cycles are linked through common sources or removal processes.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.geo-codeTrinity Riveren_US
dc.history1-15-09 kswen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/18511
dc.latitudeen_US
dc.locationNot available in house - Please contact GBIC for assistanceen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries10035.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectbiodegradationen_US
dc.subjectcarbohydratesen_US
dc.subjectcarboxylic acidsen_US
dc.subjectdissolved organic carbonen_US
dc.subjectDOCen_US
dc.subjectpolysaccharidesen_US
dc.subjecttotal carbohydratesen_US
dc.subjectTCHOen_US
dc.subjecturonic aciden_US
dc.subjectURAen_US
dc.titleA seasonal survey of carbohydrates and uronic acids in the Trinity River, Texasen_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue36(3)en_US

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