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Hydrobiologia

, Volume 85, Issue 3, pp 271–282 | Cite as

Etude de la reproduction du gardon (Rutilus rutilus) et des effets d'une élévation provoquée de la température en Meuse sur cette reproduction

  • A. Mattheeuws
  • M. Genin
  • A. Detollenaere
  • J.-C. Micha
  • avec la collaboration technique de Y. Mine
Article

Abstract

The thermal pollution of the Tihange Nuclear Power Plant increases the temperature (± 3 °C) of the river Meuse and has precise effects on the reproductive cycle of the roach (Rutilus rutilus) downstream: well-defined, ovarial development, acceleration of maturation, and earlier laying of eggs (3 weeks). The volume of the different testicular cell types appears to be more important in males downstream. Spermatozoa are retained for a longer period in both populations (upstream and downstream) as a result of diminished spawning-grounds along the river.

Keywords

heated river water reproduction gametogenesis fish Rutilus rutilus 

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Copyright information

© Dr W. Junk Publishers 1981

Authors and Affiliations

  • A. Mattheeuws
    • 1
  • M. Genin
    • 1
  • A. Detollenaere
    • 1
  • J.-C. Micha
    • 1
  • avec la collaboration technique de Y. Mine
    • 1
  1. 1.Laboratoire d'Ecologie des Eaux DoucesFacultés UniversitairesNamurBelgique

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