IMPACT OF AGRICULTURAL PRODUCTS ON A RAMSAR ECOLOGICAL SITE 'MERJA ZERGA': THE CASE OF THE QUALITY OF THE TWO WATER EMISSARIES OUED DRADER AND CANAL NADOR

In order to provide a clear answer on the origin of the various pollutants identified in the Merja Zerga, we have been interested in the main emissaries that drain the thrusting waters of the Gharb plain in this Ramsar site, namely Canal Nador and Oued Drader. Several companions have been carried out, the purpose is to study the physicochemical quality and the metal trace elements in water and sediments, and the results show an average quality to very bad. This raises the risk associated with the presence of these elements and the possible impact on the quality of the fishery resources, which are coveted by the indigenous population.