Paysages et aménagements de gestion des eaux pluviales du campus de La Doua : quelles représentations en ont les usagers ?

Caractérisation des représentations et des perceptions des micropolluants et des dispositifs techniques par les différents niveaux décisionnels d’acteurs

Livrable 3B, Tâche 3, Projet Micromegas - AFB – Agences de l’eau, Appel à projet Micropolluants (2015-2019)

Human-Driven Microbiological Contamination of Benthic and Hyporheic Sediments of an Intermittent Peri-Urban River Assessed from MST and 16S rRNA Genetic Structure Analyses

International audience; Rivers are often challenged by fecal contaminations. The barrier effect of sediments against fecal bacteria was investigated through the use of a microbial source tracking (MST) toolbox, and by Next Generation Sequencing (NGS) of V5-V6 16S rRNA gene (rrs) sequences. Non-metric multi-dimensional scaling analysis of V5-V6 16S rRNA gene sequences differentiated bacteriomes according to their compartment of origin i.e., surface water against benthic and hyporheic sediments. Classification of these reads showed the most prevalent operating taxonomic units (OTU) to be allocated to Flavobacterium and Aquabacterium. Relative numbers of Gaiella, Haliangium, and Thermoleophilu…