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Compound-Specific Delta-C-14; Basin Surface Sediment; Delaware Estuary; Lipid-Composition; C-14 Ams; Carbon; Radiocarbon; Variability; Fractionation; Marine
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Full-Text Articles in Life Sciences
Source-Age Dynamics Of Estuarine Particulate Organic Matter Using Fatty Acid Delta C-13 And Delta C-14 Composition, Ha Mcintosh, Ap Mcnichol, L Xu, Elizabeth A. Canuel
Source-Age Dynamics Of Estuarine Particulate Organic Matter Using Fatty Acid Delta C-13 And Delta C-14 Composition, Ha Mcintosh, Ap Mcnichol, L Xu, Elizabeth A. Canuel
VIMS Articles
This study used a multiproxy approach to elucidate the source and age composition of estuarine particulate organic matter (POM) using bulk stable isotopes (C-13(POC)), fatty acid (FA) biomarkers, and compound specific isotopic analyses in surface waters along the Delaware River and Bay (Delaware Estuary, hereafter). C-13 values of FA (C-13(FA)) ranged more widely (-30.9 parts per thousand to -21.8 parts per thousand) than C-13(POC) (-27.5 parts per thousand to -23.5 parts per thousand), providing greater insight about POM sources along the estuary. C-13 values of C-16:0 phospholipid FA (primarily, aquatic sources) increased along the salinity gradient (-29.8 parts per thousand …