Impact of physicochemical parameters of water on the biodiversity of the invertebrate fauna from Echatt Lake, Northeast Algeria

Abstract. Mounira H, Fatiha BS, Noureddine S. 2023. Impact of physicochemical parameters water on the biodiversity invertebrate fauna from Echatt Lake (Northeast Algeria). Biodiversitas 24: 258-268. Algeria is a case study ignorance. To date, there are neither complete inventories for any taxa nor atlas across country! Yet, great importance global biodiversity. The coastal area part hotspot which Mediterranean perimeter and has several regional red spots Biodiversity provides raw material resources necessary living beings' survival maintaining atmospheric quality, climate regulation, soil fertility. In addition, macrobenthic an important provider aquatic ecosystems. present aimed to determine community Algeria) located in protected classified by Ramsar 1983, evaluate impact anthropogenic activities using their structure function. Samples were collected monthly over one year (January 2019-December 2019) at four selected stations, 2,861 specimens collected. identified species (16 species) belong 9 families: Naucoridae, Hydrophilidae, Notonectidae, Pleidae, Corexidae, Eylaidae, Pionidae, Daphniidae, Copepoda. Seven (temperature, hydrogen potential, electrical conductivity, hydrometric title, alkalimetric titer, turbidity) also determined each station influence abundance distribution fauna. pH apparent turbidity fauna, while richness was relatively low stations 2 4, near sources pollution. data obtained permitted us possible invertebrates.