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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

Abstract

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.

Keywords

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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References

  1. Anderson RF, Rowe GT, Kemp PF, Trumbore S, Biscaye PE (1994) Carbon budget for the mid-slope depocenter of the Middle Atlantic Bight. Deep-Sea Res II 41: 669–703CrossRefGoogle Scholar
  2. Bauer JE, Druffel ERM (1998) Ocean margins as a significant source of organic matter to the deep open ocean. Nature 392: 482–485CrossRefGoogle Scholar
  3. Berelson WM, Anderson RF, Dymond J, DeMaster D, Hammond DE, Collier R, Honjo S, Leinen M, McManus J, Pope R, Smith C, Stephens M (1997) Biogenic budgets of partide rain, benthic remineraliation and sediment accumulation in the equatorial Pacific. Deep-Sea Res II 44: 2251–2282CrossRefGoogle Scholar
  4. Berelson WM, McManus J, Coale KH, Johnson KS, Kilgore T, Burdige D, Pilskaln C (1996) Biogenic matter diagenesis on the sea floor: a comparison between two continental margin transects. J Mar Res 54: 731–762CrossRefGoogle Scholar
  5. Blackburn TH (1991) Accumulation and regeneration: processes at the benthic boundary layer. In: Mantoura RFC, Martin JM, Wollast R (eds) Ocean margin processes in global change. John Wiley and Sons, New York, pp 181–195Google Scholar
  6. Burdige DJ, Homstead J (1994) Fluxes of dissolved organic carbon from Chesapeake Bay sediments. Geochim Cosmochim Acta 58: 3407–3424CrossRefGoogle Scholar
  7. Buscail R, Germain C (1997) Present-day organic matter sedimentation on the NW Mediterranean margin: importance of off-shelf export. Limnol Oceanogr 42: 217–229CrossRefGoogle Scholar
  8. Buscail R, Pocklington R, Daumas R, Guidi LD (1990) Fluxes and budget of organic matter in the benthic boundary layer over the northwestern mediterranean margin. Cont Shelf Res 10: 1089–1122CrossRefGoogle Scholar
  9. Canfield DE (1993) Organic matter oxidation in marine sediments. In: Wollast R, Mackenzie FT, Chou L (eds) Interactions of C, N, P and S: biogeochemical cycles and global change. (NATO ASI Ser 14) Springer-Verlag, Berlin Heidelberg New York Tokyo, pp 333–363CrossRefGoogle Scholar
  10. de Bovée F, Guidi LD, Soyer J (1990) Quantitative distribution of deep-sea meiobenthos in the northwestern Mediterranean (Gulf of Lions). Cont Shelf Res 10: 1123–1145CrossRefGoogle Scholar
  11. de Bovée F, Picon P, Medernach L et al (1998) In situ studies of biogeochemical processes occuring at the deep-sea floor: first results obtained with the Banyuls Benthic Lander. Eur Geophys Soc, Katlenburg-Lindau, Germany. Annades Gephys 16: C731 (Suppl II)Google Scholar
  12. Deming JW, Baross JA (1993) The early diagenesis of organic matter: bacterial activity. In: Engel MH, Macko SA (eds) Organic geochemistry, principles and applications. Plenum Press, New York, pp 119–144Google Scholar
  13. Etcheber H, Relexans J-C, Beliard M, Weber O, Buscail R, Heussner S (1999) Distribution and quality of sedimentary organic matter on the Aquitanian margin (Bay of Biscay). Deep-Sea Res II 46: 2249–2288CrossRefGoogle Scholar
  14. Got H, Aloisi J-C, Monaco A (1985) Sedimentary processes in Mediterranean deltas and shelves. In: Stanley DJ, Wezel FC (eds) Geological evolution of the Mediterr basin. Springer-Verlag, Berlin Heidelberg New York Tokyo, pp 355–376CrossRefGoogle Scholar
  15. Hargrave BT (1973) Coupling carbon flow through some pelagic and benthic communities. J Fish Res Board Can 30: 1317–1326CrossRefGoogle Scholar
  16. Hedges JI (1992) Early diagenesis of organic matter in marine sediments: progress and perplexity. Mar Chem 39: 67–93CrossRefGoogle Scholar
  17. Hedges JI, Keil RG (1995) Sedimentary organic matter preservation: an assessment and speculative synthesis. Mar Chem 49: 81–115CrossRefGoogle Scholar
  18. Helder W (1989) Early diagenesis and sediment-water exchange in the Golfe du Lion. In: Martin JM, Bardi H (eds) EROS 2000 (European River Ocean System) project. Water Pollut Res Rep, CEC Directorate-Gen Sci Res Dev, Brussels 13, pp 87–101Google Scholar
  19. Henrichs SM (1992) Early diagenesis of organic matter in marine sediments: progress and perplexity. Mar Chem 39: 119–149CrossRefGoogle Scholar
  20. Heussner S, Calafat AM, Palanques A (1996) Quantitative and qualitative features of particle fluxes in the North-Balearic basin. In: Canals M, Casamor JL, Cacho I, Calafat AM, Monaco A (eds) EUROMARGE-NB Final Rep. MAST II Progr, vol II, pp 41–66Google Scholar
  21. Hulth S, Tenberg A, Landen A, Hall POJ (1997) Mineralization and burial of organic carbon in sediments of the southern Weddell Sea (Antarctica). Deep-Sea Res 44: 955–981CrossRefGoogle Scholar
  22. Lampitt RS, Raine RCT, Billett DSM, Rice AL (1995) Material supply to the European continental slope: a budget based on benthic oxygen demand and organic supply. Deep-Sea Res 42: 1865–1880CrossRefGoogle Scholar
  23. Lefèvre D, Minas HJ, Minas M, Robinson C, Williams PJ Le B, Woodward EMS (1997) Review of gross community production, primary production, net community production and dark community respiration in the Gulf of lions. Deep-Sea Res II 44: 801–132CrossRefGoogle Scholar
  24. Mantoura RFC, Martin J-M, Wollast R (edi) (1991) Ocean margin processes in global change. John Wiley and Sons, New YorkGoogle Scholar
  25. Monaco A, Courp T, Heussner S, Carbonne J, Fowler SW, Deniaux B (1990) Seasonality and composition of particulate fluxes during ECOMARGE-I, western Gulf of Lions. Cont Shelf Res 9: 959–987CrossRefGoogle Scholar
  26. Monaco A, Durrieu de Madron X, Radakovitch O, Heussner S, Carbonne J (1999) Origin and variability of downward biogeochemical fluxes on the Rhone continental margin (NW Mediterranem). Deep-Sea Res 46: 1483–1511CrossRefGoogle Scholar
  27. Reimers CE, Jahnke RA, McCorkle DC (1992) Carbon fluxes and burial rates omi the continental slope and rise off central California with implications for the global carbon cycle. Global Biogeochem Cycles 6: 199–224CrossRefGoogle Scholar
  28. Schulz DS, Dahmke A, Schinzel U, Wallmann K, Zabel M (1994) Early diagenesis processes, fluxes and reaction rates in sediments of the South Atlantic. Geochim Cosmochim Acta 58: 2041–2060CrossRefGoogle Scholar
  29. Sempéré R, Charrière B, Van Wambeke F, Cauwet G (2000) Carbon inputs of the Rhône River to the Mediterranean Sea: biogeochemical implications. Global Biogeochem Cycle 14: 669–681CrossRefGoogle Scholar
  30. Smith Jr KL (1987) Food energy supply and demand: a discrepancy between particulate organic carbon flux and sediment community oxygen consumption in the deep ocean. Limnol Oceanogr 32: 201–220CrossRefGoogle Scholar
  31. Smith S, MacKenzie F (1987) The ocean as a net heterotrophic system: implications for the carbon biogeochemical cycle. Global Biogeochem Cycle 1: 187–198CrossRefGoogle Scholar
  32. Tahey TM, Duineveld GCA, Berghuis EM, Helder W (1994) Relation between sediment-water fluxes of oxygen and silicate and faunal abundance at continental shelf, slope and deep-water stations in the northwest Mediterranean. Mar Ecol Prog Ser 104: 119–130CrossRefGoogle Scholar
  33. Tenberg A, de Bovée F, Hall P, Berelson W, Chadwick B, Ciceri G et al (1995) Benthic chamber and profiling lander in oceanography: a review of design, technical solutions and functioning. Prog Oceanogr 35: 253–294CrossRefGoogle Scholar
  34. Tholosan O (1999) Activités microbiennes dans les eaux et les sédiments profonds: rôle de la pression hydrostatique. Thèse Doctorat, Univ Méditerranée, Aix-Marseille 2Google Scholar
  35. Walsh JJ (1991) Importance of continental margins in the marine biogeochemical cycling of carbon and nitrogen. Nature 350: 53–55CrossRefGoogle Scholar
  36. Walsh JJ, Rowe GT, Iverson RL, McRoy P (1981) Biological export of shelf carbon is a sink on the global CO2 cycle. Nature 291: 196–201CrossRefGoogle Scholar
  37. Wollast R (1991) The coastal organic carbon cycle: fluxes, sources, and sinks. In: Mantoura RFC, Martin J-M, Wollast R (eds) Ocean margin processes in global change. John Wiley and Sons, New York pp 365–381Google Scholar

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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