Location of sampled sites on rivers in metropolitan France in 2016 and 2017 (left) and in the overseas department of Mayotte in 2014 and 2015 (right).

  Part of: Valentin V, Frédéric R, Isabelle D, Olivier M, Yorick R, Agnès B (2019) Assessing pollution of aquatic environments with diatoms’ DNA metabarcoding: experience and developments from France Water Framework Directive networks. Metabarcoding and Metagenomics 3: e39646. https://doi.org/10.3897/mbmg.3.39646