“…Moreover, pollution has been identified as one of the main factors affecting the ecological quality of these areas, especially by altering their nursery function (see for instance Fonseca et al, 2014;Gibson, 1994;Nunes et al, 2014;Teichert et al, 2016). The effect of pollution in these habitats is such that, in Europe and especially in France, fish-based indicators of the ecological quality of transitional waters are particularly calibrated to respond to water contamination (Courrat et al, 2009;Delpech et al, 2010;Pasquaud et al, 2013).…”