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Organic matter transport across a macrotidal estuary gradient: the Seine estuary, France
Texier, H.; Lafite, R.; Dupont, J.-P.; Firmin, V.; Gadel, F.; Serve, L.; Charriere, B. (1993). Organic matter transport across a macrotidal estuary gradient: the Seine estuary, France. Neth. J. Aquat. Ecol. 27: 405-413
In: Netherlands Journal of Aquatic Ecology. Kluwer Academic Publishers/Netherlands Society of Aquatic Ecology: Bilthoven. ISSN 1380-8427, more
Peer reviewed article  

Also published as
  • Texier, H.; Lafite, R.; Dupont, J.-P.; Firmin, V.; Gadel, F.; Serve, L.; Charriere, B. (1993). Organic matter transport across a macrotidal estuary gradient: the Seine estuary, France, in: Meire, P. et al. (Ed.) Marine and Estuarine Gradients: ECSA 21: Proceedings of the 21st Symposium of the Estuarine and Coastal Sciences Association held in Gent, 9-14 september 1991. Netherlands Journal of Aquatic Ecology, 27(2-4): pp. 405-413, more

Available in Authors 

Keywords
    Dissolved organic matter; Estuaries; Estuarine dynamics; Hydrodynamics; Organic matter; Particulate organic matter; Salinity; Salinity gradients; Transport processes; Turbidity; Water pollution; ANE, France, Haute-Normandie, Seine Bay [Marine Regions]; Marine; Brackish water

Authors  Top 
  • Texier, H.
  • Lafite, R.
  • Dupont, J.-P.
  • Firmin, V.
  • Gadel, F.
  • Serve, L.
  • Charriere, B.

Abstract
    The macrotidal Seine estuary receives mineral and organic fluxes from a strongly industrialized basin. Upstream-downstream analysis of POC, polysaccharides and phenolic compounds in the particulate fraction indicated clearly the continental inflow. Within the maximum turbidity zone, the organic matter/ suspended particulate matter ratio is lower than elsewhere which results from the dilution effect. Particulate tracers were quantified using grain size analysis and S.E.M. techniques. These sedimentary data defined the ratio of marine to continental particulate flux and mechanisms controlling the suspended particulate matter load within the estuarine mixing zone (resuspension, frontal enrichment and turbulent mixing processes). Organic parameters confirm the data on the mineral matter and were used to distinguish between the marine and continental inputs, from the upstream and downstream samples. Between the two endmembers, variations in organic parameters were controlled mainly by the hydrodynamics in the estuarine zone, rather than by salinity changes.

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