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Microbial communities from the sea ice and adjacent water column at the time of ice melting in the northwestern part of the Weddell Sea
Mathot, S.; Becquevort, S.; Lancelot, C. (1991). Microbial communities from the sea ice and adjacent water column at the time of ice melting in the northwestern part of the Weddell Sea. Pol. Res. 10(1): 267-275
In: Polar Research. Norsk Polarinstitutt = Norwegian Polar Institute: Oslo. ISSN 0800-0395; e-ISSN 1751-8369, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Ice > Sea ice
    Phase changes > Melting > Ice melting
    PSW, Weddell Sea
    Weddell Sea [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Mathot, S.
  • Becquevort, S., meer
  • Lancelot, C., meer
Abstract
    Microbial composition and potential metabolic activity of its autotrophic compartment were measured in December 1988 in several micro-environments that characterise the North-West Sector of the marginal area of the Weddell Sea; infiltration and band assemblages of ice floes and adjacent waters were investigated. At the time of ice melting, a shift from a diatom dominated population (ice) to a flagellate dominated population (water column) was observed. This shift was not due to an "inability' of the ice-diatoms to grow in the water column. Macrograzing and/or sedimentation are possible causes of the disappearance of diatoms during ice melting. The remaining small autotrophic forms released by the ice would constitute a significant seeding stock for the growth of ice-edge blooms.
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