Abundance and structural diversity of bacteriohopanepolyols in suspended particulate matter along a river to ocean transect

James P. Sáenz*, Timothy I. Eglinton, Roger E. Summons

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)

    Abstract

    The concentration and structural diversity of a suite of bacteriohopanepolyols (BHPs) was measured in suspended particulate matter (SPM) from six stations along a river-ocean transect off the Pacific coast of Panama. Riverine SPM contained BHPs diagnostic of soil input consistent with a terrigenous source. The concentration of BHPs was 10 times greater in riverine SPM than marine SPM demonstrating that terrigenous OM exported to marine sediments could provide a significant contribution to the marine sedimentary hopanoid inventory. Given the rich structural diversity of BHPs in terrigenous SPM, interpretations of the sedimentary record of hopanoids in coastal marine settings must resolve inputs from marine pelagic and terrigenous sources.

    Original languageEnglish
    Pages (from-to)774-780
    Number of pages7
    JournalOrganic Geochemistry
    Volume42
    Issue number7
    DOIs
    Publication statusPublished - Aug 2011

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