Benthic community ecology for Algerian river Seybouse
Autor
Baaloudj, Affef
de Los Ríos-Escalante, Patricio R.
Esse, Carlos
Resumen
The Seybouse is the second largest river basin in Algeria, hosting an important biodiversity and providing various ecosystem services. This watershed is highly influenced by agricultural and industrial activities, which threaten its biodiversity and ecosystem integrity. The use of benthic macroinvertebrates as biological indicators has a long tradition in developed countries and integrated into all assessments of the ecological quality of river systems. However, the macroinvertebrates of many North African regions are still not well studied, including those of the Seybouse river. The aim of this study is to assess the inventory and ecological role of benthic macroinvertebrates in inland waters of the Seybouse River and determine the impact of pollution on their spatial distributions. We sampled the benthic macrofauna of Wadi Seybouse and its affluents using regular surveys in three sites, of which one was in the upper Seybouse Bouhamdane in Medjez Amar and two in the middle Seybouse. Between December 2019 and May 2020, 10 physico-chemical parameters (pH, EC, OD, water speed, NO3, Salinity, NO2, MES, turbidity, depth) were measured in order to establish a health state diagnosis of these aquatic ecosystems. The complementary biological approach by the analysis of populations of macroinvertebrates identified 7482 individuals and 40 taxa divided into five classes: Crustaceans which were the most dominant, insects with the main orders (Ephemeroptera, Diptera, Trichoptera, Heteroptera and Odonata), Molluscs, Nematodes and Annelids. The physico-chemical analyzes and the application of the organic pollution indices indicated a strong to excessive pollution for all sites, especially in Seybouse upstream.
Colecciones
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Article
Null and neutral models for explaining spatial variations in intertidal invertebrate species diversity on rocky shores in Antofagasta town (23°S, Chile) (2023)
De los Ríos-Escalante, Patricio; Esse, Carlos; Stella, Chelladurai; Adikesavan, Priya; Zúñiga, Oscar (Brill Academic Publishers, 2023)The intertidal invertebrate community on rocky shores in northern Chile is characterised by a high species richness resulting from the high productivity of this ecosystem. The present study aims to do the first characterisation ... -
Article
FIRST DESCRIPTION OF INVERTEBRATE BENTHIC FAUNA IN MIDDLE ZONE OF THE LOA RIVER (CHILE) (2024)
De los Ríos-Escalante, P.R.; Wilson, R.; Norambuena, J.; Esse, C. (National Academy of Sciences of Ukraine, 2023)Aquatic insect communities in inland waters of Chile are characterised by the presence of certain species depending on water quality, but there is little information on statistical ecology in the structure of insect ... -
Article
Benthic macroinvertebrate communities in sites with native forest presence and absence in North Patagonia [Comunidades de macroinvertebrados bentônicos em locais com presença e ausência de floresta nativa no Norte da Patagônia. A fauna] (2020)
de los Ríos-Escalante P.; Esse C.; Santander-Massa R.; Saavedra P.; Encina-Montoya F. (Fundacao Zoobotanica do Rio Grande do Sul, 2020)