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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(2-4): 405-413. https://dx.doi.org/10.1007/BF02334802
In: Netherlands Journal of Aquatic Ecology. Kluwer Academic Publishers/Netherlands Society of Aquatic Ecology: Bilthoven. ISSN 1380-8427; e-ISSN 2214-7098
Also appears in:
Meire, P.; Vincx, M. (Ed.) (1993). 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). Netherlands Society of Aquatic Ecology: Bilthoven. 496 pp., more
Peer reviewed article  
Available in  Authors 
Keywords
    Gradients > Salinity gradients
    Motion > Water motion > Circulation > Water circulation > Shelf dynamics > Estuarine dynamics
    Organic matter
    Organic matter > Dissolved organic matter
    Organic matter > Particulates > Particulate organic matter
    Physics > Mechanics > Fluid mechanics > Hydrodynamics
    Pollution > Water pollution
    Properties > Chemical properties > Salinity
    Properties > Physical properties > Turbidity
    Transport processes
    Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries
    ANE, France, Haute-Normandie, Seine Bay [Marine Regions]
    Marine/Coastal; 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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