| Titre : | Hydrobiologia 373-374 - 1998 |
| Type de document : | Bulletin |
| Paru le : | 08/06/1998 |
Dépouillements
Article
Samuel Moreau, Auteur ;
Georges Bertru, Auteur ;
Christian Buson, Auteur
Influences of urban and agricultural activities on river water quality were analysed on the upper catchment of the River Vilaine (902 km2), France. Agricultural land covered 78% of the study area. Corn, grass and cereals were the main crops. Tot[...]
Article
T. Moutin, Auteur ;
P. Raimbault, Auteur ;
H. L. Golterman, Auteur ;
B. Coste, Auteur
The nutrient input by the Rhone river into the Mediterranean Sea was measured from June 1994 to May 1995. The various fractions of N and P (dissolved and Particulate, organic and inorganic) as well as chlorophyll and dissolved silicate concentra[...]
Article
Stepanie Even, Auteur ;
Michel Poulin, Auteur ;
Josette Garnier, Auteur ;
Gilles Billen, Auteur ;
Pierre Servais, Auteur ;
Andre Chesterikoff, Auteur ;
Michel Coste, Auteur
The Seine river crosses the most densely populated and industrialized area of France, Paris (16 million inhabitants), surrounded by fertile land with intensive agriculture. In the framework of a CNRS (Scientific Research National Center) researc[...]
Article
P. Chauvelon, Auteur
With the development of rice cultivation in the 50's, a great part of the Isle of Camargue, the central area of the Rhone river delta, was polderized. The Vaccares lagoon system (110 km2 , 65 km2 for the Vaccares lagoon itself) represents the ma[...]
Article
Valerie Verneaux, Auteur ;
Lotfi Aleya, Auteur
A survey of the spatial and temporal distribution of the chironomid community was conducted in Lake Abbaye (France). Samples were taken monthly (from May to November) at five depths (- 1 m to - 20 m) using artificial substrates. The results show[...]
Article
Bruno Tassin, Auteur ;
Brigitte Vincon Leite, Auteur
In order to assess the efficiency of eutrophication control programs, predictive models are necessary. We propose a methodology for implementing such a model, based on the coupling of a biogeochemical model of a lake and the use of long term tim[...]
Article
Article
E. Gomez, Auteur ;
M. Fillit, Auteur ;
M. C. Ximenes, Auteur ;
B. Picot, Auteur
The Mejean Lagoon (France) is a confined, shallow system, 0.7 m in depth, with a surface area of 747 ha. Its sediments have a fine granulometry and are evenly distributed. The bathymetry and hydrodynamic behaviour of the basin create two zones w[...]
Article
D. Gilbert, Auteur ;
C. Amblard, Auteur ;
G. Bourdier, Auteur ;
A. J. Francez, Auteur
The aim of this study was to assess the structure of the microbial loop in a Sphagnum fallax - Carer rostrata fen of the French Massif central, and the impact of nitrogen supplies on the different microbial communities. Microalgae (46% of the to[...]
Article
P. Chauvelon, Auteur
With the development of rice cultivation in the 50's, a great part of the Isle of Camargue, the central area of the Rhone river delta, was polderized. The Vaccares lagoon system (110 km(2), 65 km(2) for the Vaccares lagoon itself) represents the[...]
Article
J. Pozo, Auteur ;
A. Basaguren, Auteur ;
A. Elosegui, Auteur ;
J. Molinero, Auteur ;
E. Fabre, Auteur ;
E. Chauvet, Auteur
To test the hypothesis that decomposition of leaf species in streams is influenced by afforestation with Eucalyptus globulus, we compared decay rates, nutrient levels, fungal biomass and macroinvertebrate assemblages on alder and eucalyptus leaf[...]
Article
B. Vincon-Leite, Auteur ;
P.-E. Bournet, Auteur ;
X. Gayte, Auteur ;
D. Fontvieille, Auteur ;
B. Tassin, Auteur
A flood event which occurred during the onset of thermal stratification and of algal growth (March 1996) was studied in mesotrophic Lake Bourget (France). Both physical and biogeochemical processes occurring during this episode were assessed. Th[...]
Article
Loïc Marion, Auteur ;
Luc Brient, Auteur
The role of wetland on water quality of rivers was estimated in a natural lake, Grand-Lieu (5600 ha), discharging to the Loire estuary. Inputs of its two tributaries, budgets and retention within the lake for particulate matter (PM), nitrogen (N[...]
Article
Nabila Mazouni, Auteur ;
Jean-Claude Gaertner, Auteur ;
Jean-Marc Deslous-Paoli, Auteur
The development of shellfish farming activities causes great changes in ecosystems functioning. In the Thau lagoon, oysters are reared on long constantly submerged lines, and these become fouled by several epifaunal species. The assemblage (oyst[...]
