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

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dc.creatorHung, C.C.en_US
dc.creatorWarnken, K.W.en_US
dc.creatorSantschi, P.H.en_US
dc.date2005-03en_US
dc.date.accessioned2008-11-18T15:15:05Z
dc.date.accessioned2011-12-12T23:01:44Z
dc.date.available2008-11-18T15:15:05Z
dc.date.available2011-12-12T23:01:44Z
dc.date.created2005-03en_US
dc.date.issued2008-11-18T15:15:05Z
dc.descriptionDue 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 2000รข 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.departmentResearch in Water Resources, Center for
dc.description.sponsorshipLaboratory for Oceanographic and Environmental Research (LOER), Department of Marine Sciences, Texas A&M University at Galvestonen_US
dc.identifier.citationHung, C.C., K.W. Warnken, and P.H. Santschi. (2005). "A seasonal survey of carbohydrates and uronic acids in the Trinity River, Texas." Organic Geochemistry 36(3):462-474.en_US
dc.identifier.urihttp://hdl.handle.net/2152/4037
dc.publisherOrganic Geochemistryen_US
dc.subjecturonic acidsen_US
dc.subjectnutrientsen_US
dc.subjecttrace metalsen_US
dc.subjectcarbohydratesen_US
dc.subject.classificationwater qualityen_US
dc.titleA seasonal survey of carbohydrates and uronic acids in the Trinity River, Texasen_US
dc.typeArticleen_US

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