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Determination of dissolved organic carbon release by phytoplankton in natural water samples
Estrada, M.; Gutiérrez-Morán, J.-A. (1996). Determination of dissolved organic carbon release by phytoplankton in natural water samples, in: Baeyens, J. et al. (Ed.) Integrated Marine System Analysis. European Network for Integrated Marine System Analysis. FWO Vlaanderen: minutes of the first network meeting (Brugge, 29.02.96-02.03.96). pp. 58-67
In: Baeyens, J.; Dehairs, F.A.; Goeyens, L. (Ed.) (1996). Integrated Marine System Analysis. European Network for Integrated Marine System Analysis. FWO Vlaanderen: minutes of the first network meeting (Brugge, 29.02.96-02.03.96). Vrije Universiteit Brussel. Laboratorium voor Analytische Chemie: Brussel. 217 pp., more

Available in  Authors 
    VLIZ: Aquatic Ecology 10/2 [7081]
Document type: Conference paper

Keyword
    Marine

Authors  Top 
  • Estrada, M.
  • Gutiérrez-Morán, J.-A.

Abstract
    Phytoplankton may release as dissolved organic carbon (DOC) part of the C assimilated during photosynthesis. Excreted DOC may enter the food web after being assimilated by bacteria. Although it appears that only a small portion of photosynthate is released as DOC, the corresponding flux can be significant if photosynthetic rates are high. Determination of DOC production by phytoplankton presents many methodological problems, especially when dealing with natural samples which include different components of the microbial food web. This contribution discusses some of these difficulties, within the framework of a set of data obtained during a cruise carried out during the austral summer of 1995-1996 in the Bransfield and Gerlache Straits (Southern Ocean).

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