Impact of Large Discharge Fluctuations on the Macroinvertebrate Populations Downstream of a Dam

  • Odile Gaschignard
  • Alain Berly

Abstract

The impacts of river regulation on downstream habitats have received frequent study, and good reviews are given in Ward (1982), Armitage (1984) and Décamps (1984). The impacts of hydro-developments that include a reservoir are well known, however, little attention has been given to projects that lack a reservoir; situations in which only the flow rate has been modified. This paper deals with a comparison of the macroinvertebrate fauna in the up- and downstream sections of the Rhône River, close to Lyon (France), where only the flow rate has been modified.

Keywords

Formalin Macrophyte Bivalve Editing Detritus 

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Odile Gaschignard
    • 1
  • Alain Berly
    • 1
  1. 1.Département de Biologie Animale et Ecologie U.A. C.N.R.S. 367 „Ecologie des eaux douces“Université Claude-BernardVilleurbanne-CédexFrance

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