Transient fertilizing effect of dust in P-deficient LNLC surface ocean

Elvira Pulido-Villena, Victoire Rrolle, Cecile Guieu

    Research output: Contribution to journalArticle

    Abstract

    In much of the world's low-nutrient low-chlorophyll (LNLC) oceans, including the Mediterranean Sea, surface dissolved inorganic phosphorus (DIP) is below the detection limit of conventional techniques. Although dust deposition has been generally recognized as a major source of P to the Mediterranean Sea, the lack of DIP data at nanomolar levels has so far precluded a quantification of this effect. This work reports the first one-year time series of surface nanomolar DIP in the Mediterranean Sea. Moreover, by combining nanomolar DIP data from two field studies (the above cited time-series and an experimental addition of Saharan dust to large mesocosms) and one in vitro dust dissolution experiment, we show that dust pulses may indeed provoke transient increases in DIP concentration (up to 80 nM) in P-starved surface waters of this LNLC region.

    Original languageEnglish (US)
    Article numberL01603
    JournalGeophysical Research Letters
    Volume37
    Issue number1
    DOIs
    StatePublished - Jan 1 2010

    Fingerprint

    dissolved inorganic phosphorus
    ocean surface
    nutrients
    chlorophylls
    phosphorus
    sea surface
    chlorophyll
    dust
    Mediterranean Sea
    nutrient
    time series
    surface water
    oceans
    dissolving
    dissolution
    effect
    ocean
    pulses
    experiment

    ASJC Scopus subject areas

    • Geophysics
    • Earth and Planetary Sciences(all)

    Cite this

    Transient fertilizing effect of dust in P-deficient LNLC surface ocean. / Pulido-Villena, Elvira; Rrolle, Victoire; Guieu, Cecile.

    In: Geophysical Research Letters, Vol. 37, No. 1, L01603, 01.01.2010.

    Research output: Contribution to journalArticle

    Pulido-Villena, Elvira ; Rrolle, Victoire ; Guieu, Cecile. / Transient fertilizing effect of dust in P-deficient LNLC surface ocean. In: Geophysical Research Letters. 2010 ; Vol. 37, No. 1.
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