Contribution à l’étude de la biodiversité phytoplanctonique du canal Oued – Righ (Touggourt)- Wilaya Ouargla.

Abstract

The purpose of this work is to contribute to the study of plankton biological diversity, where we

carry out the biological inventory of phytoplankton species in the Oued - Righ canal, in the

Touggourt region. The study of the environmental factors of the environment in which the algae live, and their relation with the physical and chemical factors, without neglecting the environmental conditions of the region and the period of study of the water samples taken at three points different from the

selected stations for sampling. This study gave us an overview of phytoplankton communities and their relationship to the central factors. We found 20 species of them in 15 families in 3 classes. We conclude that the

difference in physicochemical factors has given a clear biological diversity.