Environmental Biology of Fishes

, Volume 50, Issue 2, pp 133–147

Regional and longitudinal patterns of fish community structure in the Seine River basin, France


  • Jérôme Belliard
    • Division Qualité des EauxCemagref
  • Philippe Boët
    • Division Qualité des EauxCemagref
  • Evelyne Tales
    • Division Qualité des EauxCemagref

DOI: 10.1023/A:1007353527126

Cite this article as:
Belliard, J., Boët, P. & Tales, E. Environmental Biology of Fishes (1997) 50: 133. doi:10.1023/A:1007353527126


The fish communities of 371 sites from 4 natural regions of the Seine River basin were studied. The sites were located from small to medium size rivers (catchment area : 5 to 3895 km2). We examined the differences between local communities according to river size (estimated by catchment area) and region. In the Seine River basin, fish communities follow a general organisation rule: total species richness increases with river size and importance of limnophilic species versus rheophilic ones increases from upstream to downstream. However, fish communities show differences of total species richness, species richness of reproductive groups and species composition between the four natural regions of the basin. Particularly, river size and regional organisation of environmental factors interact on species composition of communities and several regional patterns of longitudinal changes of fish communities are identified. The origin and range of regional differences of fish communities are discussed according to historical and environmental factors.

Species richnessReproductive groupsAssemblagesLongitudinal changesEcoregion

Copyright information

© Kluwer Academic Publishers 1997