Particle flux in the northeast Atlantic Ocean during the POMME experiment (2001)

Results from mass, carbon, nitrogen, and lipid biomarkers from the drifting sediment traps

Madeleine Goutx, Catherine Guigue, Nathalie Leblond, Anne Desnues, Aurélie Dufour, Diego Aritio, Cecile Guieu

    Research output: Contribution to journalArticle

    Abstract

    During 48 hour stations during the three Programme Océan Multidisciplinaire M-aceso Echelle (POMME) cruises in 2001 (late winter, spring, and late summer) at different locations within the region studied (38°-45°N, 15°-21°W), drifting sediment traps were deployed at 200 m and 400 m. Fluxes increased from late winter (POMME 1) to spring (POMME 2), with highest values in the North Atlantic gyre (109.1, 20.1, and 3.5 mg m2 d-1 for mass, C, and N, respectively) and decreased during POMME 3 to reach threshold values (19.1 ± 6.0, 4.4 ± 1.1, and 0.7 ± 0.2 mg m-2 d-1, respectively). Lipid class tracers and their fatty acid composition analyzed by gaseous chromatography were used to assess the quality and quantity of organic matter fluxes. Wide seasonal variability was observed in biogenic lipid fluxes (0.42 ± 0.19 and 0.39 ± 0.13 mg m-2 d-1, 1.78 ± 1.08, and 0.69 ± 0.56 mg m-2 d-1, and 0.71 ± 0.14 and 0.45 mg m-2 d-1 on average at 200 m and 400 m during late winter, spring, and late summer, respectively) in relation with the development of the spring phytoplankton bloom. In a northern persistent anticyclonic eddy a major export of algal matter occurred through zooplankton activity. In contrast with this pattern, the southernmost anticyclonic eddy exhibited the lowest particle fluxes in relation to the low productivity and the high bacterial carbon demand prevailing in the surface waters. In the main cyclonic structure (C4) and the saddle zone (during POMME 2) the pattern of lipid biotracers reflected the permanence of a zooplankton community and likely advective transfer of matter between 43.5°N and 42°N through sidbsurface water circulation.

    Original languageEnglish (US)
    Pages (from-to)1-15
    Number of pages15
    JournalJournal of Geophysical Research C: Oceans
    Volume110
    Issue number7
    DOIs
    StatePublished - Jul 8 2005

    Fingerprint

    Sediment traps
    Atlantic Ocean
    biomarkers
    Biomarkers
    sediment trap
    flux (rate)
    lipids
    biomarker
    sediments
    Nitrogen
    Carbon
    lipid
    traps
    Fluxes
    Lipids
    nitrogen
    zooplankton
    carbon
    winter
    ocean

    ASJC Scopus subject areas

    • Geophysics
    • Forestry
    • Oceanography
    • Aquatic Science
    • Ecology
    • Water Science and Technology
    • Soil Science
    • Geochemistry and Petrology
    • Earth-Surface Processes
    • Atmospheric Science
    • Earth and Planetary Sciences (miscellaneous)
    • Space and Planetary Science
    • Palaeontology

    Cite this

    Particle flux in the northeast Atlantic Ocean during the POMME experiment (2001) : Results from mass, carbon, nitrogen, and lipid biomarkers from the drifting sediment traps. / Goutx, Madeleine; Guigue, Catherine; Leblond, Nathalie; Desnues, Anne; Dufour, Aurélie; Aritio, Diego; Guieu, Cecile.

    In: Journal of Geophysical Research C: Oceans, Vol. 110, No. 7, 08.07.2005, p. 1-15.

    Research output: Contribution to journalArticle

    Goutx, Madeleine ; Guigue, Catherine ; Leblond, Nathalie ; Desnues, Anne ; Dufour, Aurélie ; Aritio, Diego ; Guieu, Cecile. / Particle flux in the northeast Atlantic Ocean during the POMME experiment (2001) : Results from mass, carbon, nitrogen, and lipid biomarkers from the drifting sediment traps. In: Journal of Geophysical Research C: Oceans. 2005 ; Vol. 110, No. 7. pp. 1-15.
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    abstract = "During 48 hour stations during the three Programme Oc{\'e}an Multidisciplinaire M-aceso Echelle (POMME) cruises in 2001 (late winter, spring, and late summer) at different locations within the region studied (38°-45°N, 15°-21°W), drifting sediment traps were deployed at 200 m and 400 m. Fluxes increased from late winter (POMME 1) to spring (POMME 2), with highest values in the North Atlantic gyre (109.1, 20.1, and 3.5 mg m2 d-1 for mass, C, and N, respectively) and decreased during POMME 3 to reach threshold values (19.1 ± 6.0, 4.4 ± 1.1, and 0.7 ± 0.2 mg m-2 d-1, respectively). Lipid class tracers and their fatty acid composition analyzed by gaseous chromatography were used to assess the quality and quantity of organic matter fluxes. Wide seasonal variability was observed in biogenic lipid fluxes (0.42 ± 0.19 and 0.39 ± 0.13 mg m-2 d-1, 1.78 ± 1.08, and 0.69 ± 0.56 mg m-2 d-1, and 0.71 ± 0.14 and 0.45 mg m-2 d-1 on average at 200 m and 400 m during late winter, spring, and late summer, respectively) in relation with the development of the spring phytoplankton bloom. In a northern persistent anticyclonic eddy a major export of algal matter occurred through zooplankton activity. In contrast with this pattern, the southernmost anticyclonic eddy exhibited the lowest particle fluxes in relation to the low productivity and the high bacterial carbon demand prevailing in the surface waters. In the main cyclonic structure (C4) and the saddle zone (during POMME 2) the pattern of lipid biotracers reflected the permanence of a zooplankton community and likely advective transfer of matter between 43.5°N and 42°N through sidbsurface water circulation.",
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    AU - Guigue, Catherine

    AU - Leblond, Nathalie

    AU - Desnues, Anne

    AU - Dufour, Aurélie

    AU - Aritio, Diego

    AU - Guieu, Cecile

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