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

Repository

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

Show simple record

dc.creator Hung, C.C.
dc.creator Warnken, K.W.
dc.creator Santschi, P.H.
dc.date 2005-03
dc.date.accessioned 2008-11-18T15:15:05Z
dc.date.available 2008-11-18T15:15:05Z
dc.date.created 2005-03
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.
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.
dc.description.sponsorship Laboratory for Oceanographic and Environmental Research (LOER), Department of Marine Sciences, Texas A&M University at Galveston
dc.publisher Organic Geochemistry
dc.subject uronic acids
dc.subject nutrients
dc.subject trace metals
dc.subject carbohydrates
dc.subject.classification water quality
dc.title A seasonal survey of carbohydrates and uronic acids in the Trinity River, Texas
dc.type Article
dc.description.department Research in Water Resources, Center for

Files in this work

Download File: Hungetal2005.htm
Size: 275.8Kb
Format: text/html

This work appears in the following Collection(s)

Show simple record


Advanced Search

Browse

My Account

Statistics

Information