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Ecophysiology of phyto- and bacterioplankton growth in the Prydz Bay area during the austral summer 1987: II. Bacterioplankton activity
Billen, G.; Lancelot, C.; Mathot, S. (1988). Ecophysiology of phyto- and bacterioplankton growth in the Prydz Bay area during the austral summer 1987: II. Bacterioplankton activity, in: Proceedings of the Belgian National Colloquium on Antarctic Research (Brussels, October 20, 1987). pp. 133-146
In: (1988). Proceedings of the Belgian National Colloquium on Antarctic Research (Brussels, October 20, 1987). Science Policy Office: Brussel. 280 pp., more

Available in Authors 
    VLIZ: Open Repository 214939 [ OMA ]
Document type: Conference paper

Keywords
    Ecophysiology; Nannoplankton; Phytoplankton; PSE, Antarctica, MacRobertson Land:, Prydz Bay [Marine Regions]; Marine

Authors  Top 
  • Billen, G., more
  • Lancelot, C., more
  • Mathot, S.

Abstract
    In order to assess the quantitative role of heterotrophic bacterial activity in the cycling of primary produced organic matter, measurements of bacterial biomass, growth and mortality rates were carried out in the Prydz Bay area in February - March 1987. These measurements, along with data from other authors collected in the same area allow to reconcile contradictory opinions published in the literature concerning the significance of the microbial loop in the Antarctic ecosystem in comparizon with temperate marine systems : (i) A similar significant part of primary production is utilized by planktonic heterotrophic bacteria. (ii) A much longer delay in the response of bacteria to phytoplankton development exists in Antarctica. These results are discussed in the light of the ecological structure of the Antarctic Fcosystem

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