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Sources and composition of high-molecular-weight dissolved organic carbon in a southern Louisiana tidal stream (Bayou Trepagnier)
Sources and composition high-molecular-weight dissolved organic carbon southern Louisiana tidal stream
2014/6/9
The composition and cycling of high-molecular-weight dissolved organic carbon (HMW-DOC) were examined in a tidal stream (Bayou Trepagnier) with seasonally high DOC concentrations (1.0-5.6 mM). 13C nuc...
Production and neutral aldose composition of dissolved carbohydrates excreted by natural marine phytoplankton populations
Production neutral aldose composition
2014/5/30
Natural populations of diatoms were incubated for 4–12 h with H13
CO3
21
. The production of particulate and
dissolved fractions of organic carbon and neutral aldoses (NAld) was followed by gas ch...
Linkages among the bioreactivity, chemical composition, and diagenetic state of marine dissolved organic matter
bioreactivity chemical composition
2014/5/30
Bacterial growth and the chemical composition of dissolved organic matter (DOM) were followed during a 10-
d decomposition experiment with fresh, algal-derived DOM from an Arctic ice floe. Duri...
Composition and cycling of marine organic phosphorus
marine organic phosphorus Composition cycling
2014/5/30
Using tangential-flow ultrafiltration and solid-state
31
P nuclear magnetic resonance (NMR) spectroscopy, the
dominant compound classes of marine high–molecular weight (1–100-nm size fr...
Effects of N : P ratio and total nutrient concentration on stream periphyton community structure, biomass, and elemental composition
total nutrient concentration elemental composition
2014/5/30
The effects of nutrient ratios on algal community structure and algal growth have been examined extensively in
lakes and marine environments, but rarely in streams. We manipulated stream water N : P ...
Effect of phosphorus limitation on elemental composition and stable carbon isotope fractionation in a marine diatom growing under different CO2 concentrations
Effect of phosphorus limitation elemental composition stable carbon isotope fractionation marine diatom growing different CO2 concentrations
2014/6/9
Blooms of the marine diatom Skeletonema costatum were initiated in closed-system batch cultures with P-deficient medium under two different initial concentrations of dissolved molecular CO2([CO2,aq]: ...
Reworking of amino acid in marine sediments: Stable carbon isotopic composition of amino acids in sediments along the Washington coast
Reworking of amino acid in marine sediments Stable carbon isotopic composition of amino acids sediments along the Washington coast
2014/5/30
The stable carbon isotopic composition of nine individual amino acids were investigated in phytoplankton and zooplankton, estuarine plankton, terrigenous material, marine fecal material, and clay mine...
Further evidence of elemental composition as an indicator of the bioavailability of humic substances to bacteria
elemental composition bioavailability humic substances to bacteria
2014/6/17
Batch culture experiments examined the ability of an isolated bacterial community to utilize four humic substances with similar molecular size but variable elemental composition. Univariate and multiv...