Show simple item record

dc.creatorHung, C.C.en
dc.creatorWarnken, K.W.en
dc.creatorSantschi, P.H.en
dc.date2005-03en
dc.date.accessioned2008-11-18T15:15:05Zen
dc.date.available2008-11-18T15:15:05Zen
dc.date.issued2005-03en
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
dc.identifier.urihttp://hdl.handle.net/2152/4037en
dc.descriptionTexten
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 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
dc.description.sponsorshipLaboratory for Oceanographic and Environmental Research (LOER), Department of Marine Sciences, Texas A&M University at Galvestonen
dc.publisherOrganic Geochemistryen
dc.subjecturonic acidsen
dc.subjectnutrientsen
dc.subjecttrace metalsen
dc.subjectcarbohydratesen
dc.subjectwater qualityen
dc.titleA seasonal survey of carbohydrates and uronic acids in the Trinity River, Texasen
dc.typeArticleen
dc.description.departmentResearch in Water Resources, Center foren


Files in this item

Icon

This item appears in the following Collection(s)

Show simple item record