Contribution to the study of stoneflies in eastern Morocco and the catchment area of the Moulouya and their distribution depending on the bioclimatic zones [Contribution à l'étude des plécoptères dans le Maroc Oriental et le bassin versant de la Moulouya et leur distribution en fonction des étages bioclimatiques]

Studies of stoneflies in eastern morocco and the watershed of the moulouya are very limited. by combining our research with those already made,the number of stoneflies in the study area is at least 9 species belonging to 8 genera and six different families,with a clear predominance of mediterranean and endemic species. this work,focused on the monitoring of stoneflies populations and the updating of the few data available on this group,mentions new records and attempts to clarify the distribution of this group based on bioclimatic levels of emberger. the results show that the distribution of the stoneflies in the study area is limited to three bioclimatic levels: the semi-arid,sub-humid and the humid respectively with cool or cold winter.