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

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dc.creator Hung, C.C. en_US
dc.creator Warnken, K.W. en_US
dc.creator Santschi, P.H. en_US
dc.date 2005-03 en_US
dc.date.accessioned 2008-11-18T15:15:05Z
dc.date.accessioned 2011-12-12T23:01:44Z
dc.date.available 2008-11-18T15:15:05Z
dc.date.available 2011-12-12T23:01:44Z
dc.date.created 2005-03 en_US
dc.date.issued 2008-11-18T15:15:05Z
dc.identifier.citation Hung, 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.uri http://hdl.handle.net/2152/4037
dc.description Due 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 2000â 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.sponsorship Laboratory for Oceanographic and Environmental Research (LOER), Department of Marine Sciences, Texas A&M University at Galveston en_US
dc.publisher Organic Geochemistry en_US
dc.subject uronic acids en_US
dc.subject nutrients en_US
dc.subject trace metals en_US
dc.subject carbohydrates en_US
dc.subject.classification water quality en_US
dc.title A seasonal survey of carbohydrates and uronic acids in the Trinity River, Texas en_US
dc.type Article en_US
dc.description.department Research in Water Resources, Center for

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