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tizguit wadi

Annales de Limnologie - International Journal of Limnology (1)

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Etude hydrobiologique d'un cours d'eau du Moyen-Atlas :l'oued Tizguit (Maroc)
M. Touabay, N. Aouad, J. Mathieu
Journal:

Annales de Limnologie - International Journal of Limnology / Volume 38 / Issue 1 / March 2002

Published online by Cambridge University Press:

15 March 2009, pp. 65-80

Print publication:

March 2002
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Le but de cette étude est de mieux connaître la qualité de l'eau et la macrofaune benthique des cours d'eau marocains duMoyen-Atlas. L'Oued Tizguit a été choisi pour son accessibilité et la variété de son environnement. Onze stations ont été suiviesen mesurant 8 paramètres physico-chimiques et en faisant l'inventaire faunistique pendant un cycle hydrologique.Ce travail montre que la qualité de l'eau évolue dans le temps selon un gradient amont-aval.Des prélèvements qualitatifs ont permis de dénombrer 167 taxons appartenant à différents groupes où les Coléoptères sontmajoritaires. La distribution de cette macrofaune semble déterminée par la variation longitudinale des différents paramètres dumilieu, et sa composition doit son originalité, en partie, à la qualité de l'eau du milieu.