Sample records for ESTUAIRES (estuaries)
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3

Eléments de synthèse tirés du séminaire : propositions de stratégies pour mieux concilier aménagement et maintien d'un fonctionnement naturel des estuaires A synthesis of the seminar: strategies to better conciliate planning and enforcement of the natural functioning of estuaries

Auger Christian

The national work seminary on the natural and artificial evolution of French estuaries was organised on the 26th and 27th of November 1997 by the GIP Hydrosystems and the Ministry of Land Settlement and Environment. Its aim was to summarize the needs of the different actors and users of the French e...

DRIVER (French)

4

Etude du comportement des éléments traces en milieu estuarien : approche expérimentale et modélisation : Application à l'étude de la spéciation de Cd, Co et Cs dans les estuaires majeurs français (Seine, Loire, Gironde, Rhône) Study of the behaviour of trace elements in estuaries : experimental approaches and modeling

Dange Catherine

Most of trace elements have a non conservative behavior in estuarine environments. It is the case of cadmium, cobalt and caesium for which the fate in estuarine and coastal zones is largely controlled by their distribution between water and suspended particles, which generally have high residence ti...

DRIVER (French)

6

Tidal and meteorological forcing of suspended sediment flux in a muddy mesotidal estuary

French, JR; Burningham, H; Benson, T

Although the supply and fate of suspended sediment is of fundamental importance to the functioning and morphological evolution of muddy estuaries, reliable sediment budgets have been established in only a few cases. Especially for smaller estuaries, inadequate bathymetric surveys and a lack of inter...

DRIVER (French)

7

The impact of groundwater discharges on mercury partitioning, speciation and bioavailability to mussels in a coastal zone (Reprinted from Marine Chemistry, vol 104, pg 143-155, 2007)

Laurier Fabien; Cossa Daniel; Beucher Charlotte; Breviere Emily

The Mussel Watch program conducted along the French coasts for the last 20 years indicates that the highest mercury concentrations in the soft tissue of the blue mussel (Mytilus edulis) occur in animals from the eastern part of Seine Bay on the south coast of the English Channel, the "Pays de Caux"....

DRIVER (French)

8

The impact of groundwater discharges on mercury partitioning, speciation and bioavailability to mussels in a coastal zone

Laurier Fabien; Cossa Daniel; Beucher Charlotte; Breviere Emily

The Mussel Watch program conducted along the French coasts for the last 20 years indicates that the highest mercury concentrations in the soft tissue of the blue mussel (Mytilus edulis) occur in animals from the eastern part of Seine Bay on the south coast of the English Channel, the "Pays de Caux"....

DRIVER (French)

9

The abundance and diversity of larval and juvenile fish in a Tropical estuary

Tito de Morais, A.; Tito de Morais, Luis

The larval and juvenile fish of the Cayenne river estuary (French Guiana, South America) were sampled at two stations from June 1989 until October 1990. A total of 52989 individuals from 59 species, some still incompletely identified, were collected. Three families, #Engraulidae$, #Gobiidae$ and #Sc...

DRIVER (French)

10

The Guianese paradox: How can the freshwater outflow from the Amazon increase the salinity of the Guianan shore?

Lambs, Luc; Muller, Etienne; Fromard, François

French Guiana is notable for the extent of its rain forests, which occupy 97% of the country, and the influence of the Amazon along its shores. In fact, the shores and estuaries support a mangrove forest typical of saline conditions. This paper reports the chemical characteristics, conductivity and ...

DRIVER (French)

11

Sedimentation-erosion dynamics of abandoned reclamations: the role of waves and tides

French, CE; French, JR; Clifford, NJ; Watson, CJ

Areas of reclaimed agricultural land reflooded due to sea wall failure (abandoned reclamations) are a prominent feature of estuaries in south-east England. These abandonments exhibit contrasting environmental dynamics: smaller sites are observed to preferentially re-establish saltmarsh; larger sites...

DRIVER (French)

12

Phosphorus forms related to sediment grain size and geochemical characteristics in French coastal areas

Andrieux-loyer Francoise; Aminot Alain

Phosphorus forms with respect to sediment characteristics, such as grain-size, and major chemical elements, were studied in French coastal marine areas (the Bay of Seine and the Loire and Gironde Estuaries).In the three areas, Fe/Al-bound phosphate (Fe/Al-P) and exchangeable phosphate (exch-P) were ...

DRIVER (French)

13

Numerical modelling of tidal flows in complex estuaries including turbulence: An unstructured finite volume solver and experimental validation

Cea, L; French, JR; Vazquez-Cendon, ME

In this paper an unstructured finite volume model for quasi-2D tidal flow with wet-dry fronts and turbulence modelling is presented, and applied to the Crouch-Roach estuarine system (Essex, U.K.). Two depth averaged turbulence models, a mixing length model and a k-epsilon model, are used in the nume...

DRIVER (French)

14

InSiPID: A new low-cost instrument for in situ particle size measurements in estuarine and coastal waters

Benson, T; French, JR

In estuaries dominated by cohesive sediments, tidal variation in the size distribution of suspended particulates has important implications for automated suspended sediment monitoring, since instrument calibration must typically take account of both sediment concentration and particle size. Particle...

DRIVER (French)

15

Evaluation of two library-independent microbial source tracking methods to identify sources of fecal contamination in french estuaries

Gourmelon Michele; Caprais Marie-paule; Segura Raphael; Le Mennec Cecile; Lozach Solen; Piriou Jean-yves; Rince A

In order to identify the origin of the fecal contamination observed in French estuaries, two library-independent microbial source tracking (MST) methods were selected: (i) Bacteroidales host-specific 16S rRNA gene markers and (ii) F-specific RNA bacteriophage genotyping. The specificity of the Bacte...

DRIVER (French)

16

Evaluation of Two Library-Independent Microbial Source Tracking Methods To Identify Sources of Fecal Contamination in French Estuaries▿

Le Mennec, Cécile; Gourmelon, Michèle; Ségura, Raphaël; Caprais, Marie Paule; Lozach, Solen; Piriou, Jean Yves

In order to identify the origin of the fecal contamination observed in French estuaries, two library-independent microbial source tracking (MST) methods were selected: (i) Bacteroidales host-specific 16S rRNA gene markers and (ii) F-specific RNA bacteriophage genotyping. The specificity of the Bacte...

DRIVER (French)

17

Development of a fish-based index to assess the ecological quality of transitional waters: The case of French estuaries

Delpech, C.; Courrat, A.; Pasquaud, S.; Lobry, J.; Le Pape, O.; Nicolas, D.; Boët, P.; Girardin, M.; Lepage, M.

The Water Framework Directive requires the assessment of the ecological status of transitional waters considering the fish component. An original methodology, based on a pressure-impact approach, was established to develop a multimetric fish-based index to characterize the ecological quality of Fren...

DRIVER (French)

18

Development of a fish-based index to assess the ecological quality of transitional waters: The case of French estuaries

Delpech, C.; Courrat, A.; Pasquaud, S.; Lobry, J.; Le Pape, O.; Nicolas, D.; Boët, P.; Girardin, M.; Lepage, M.

The Water Framework Directive requires the assessment of the ecological status of transitional waters considering the fish component. An original methodology, based on a pressure-impact approach, was established to develop a multimetric fish-based index to characterize the ecological quality of Fren...

DRIVER (French)

20

Coastal geomorphology: trends and challenges

French, JR; Burningham, H

This review highlights recent work in coastal geomorphology that challenges existing wisdom, breaks new ground or contributes in some way to wider principles. Sediment transport by currents and by waves remains a major focus of coastal process geomorphology, and the contribution of this work to our ...

DRIVER (French)