Sediment Community Oxygen Consumption along a Shelf-slope Transect in the Western Gulf of Lions

  • P. Picon
  • A. Accornero
  • F. de Bovée
  • B. Charrière
  • R. Buscail


SCOC measurements were carried out on a seasonal basis during 1997 and 1998 along a transect from the shelf to the slope of the western Gulf of Lions (northwestern Mediterranean). Values ranged from 0.6 to 48.0 mmol O2 m−2 d−1 and decreased with increasing depth. The overall mean was 11.2 ± 1.0 mmol O2 m−2 d−1 for the shelf and 23 ± 1.9 mmol O2 m−2 d−1 for the slope, with a significant difference between canyon axis (average 37 ± 2.1 mmol O2 m−2 d−1) and open slope sites (average 1.2 ± 0.8 mmol O2 m−2 d−1).The highest values were registered in all stations in late spring, when they were 1.5 to 4.2 times higher than in other seasons, except for the shelf deepest station, which showed a slight temporal variation. Temporal and spatial variations appeared to be related to the benthic biological activity and organic matter input Our data confirm previous findings from other authors in the Gulf of Lions and highlight the importance of organic matter mineralization in this area in the frame of the processes occurring at the sediment-water interface.


Continental Margin Particulate Organic Carbon Sedimentary Organic Matter Organic Matter Input Global Biogeochem Cycle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Italia 2001

Authors and Affiliations

  • P. Picon
    • 1
  • A. Accornero
    • 2
  • F. de Bovée
    • 3
  • B. Charrière
    • 1
  • R. Buscail
    • 1
  1. 1.CEFREM, CNRSUniversité de PerpignaPerpignan cedexFrance
  2. 2.Istituto di Meteorologia ed OceanografiaIstituto Universitario NavaleNapoliItaly
  3. 3.Observatoire Océanologique de Banyuls-sur-mer, CNRSUniversité de Paris VIBanyuls-sur-mer cedexFrance

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