Rassim Khelifa1,2,3, Hayat Mahdjoub4. 1. Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, British Columbia, Canada. rassimkhelifa@gmail.com. 2. Laboratory of Biology, Water and Environment, Faculty SNV-STU, University of 8 May 1945 Guelma, Guelma, Algeria. rassimkhelifa@gmail.com. 3. Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada. rassimkhelifa@gmail.com. 4. Laboratory of Biology, Water and Environment, Faculty SNV-STU, University of 8 May 1945 Guelma, Guelma, Algeria.