“…Many have focused on the behaviour of silver eels passing downstream through hydroelectric power stations to estimate mortality (Boubée and Williams, 2006;Carr and Whoriskey, 2008;Travade et al, 2010;Pedersen et al, 2012) or to improve mitigation solutions (Gosset et al, 2005;Russon and Kemp, 2011;Calles et al, 2013). Some studies have tracked silver eels along fragmented watercourses to estimate escapement (Haraldstad et al, 1985;Jansen et al, 2007;Acou et al, 2008;Breukelaar et al, 2009;Verbiest et al, 2012;Piper et al, 2013;Marohn et al, 2014;Mccarthy et al, 2014;Reckordt et al, 2014). Other studies have focused on migration triggered by environmental factors, to predict migration activity and especially peaks of migration, and consequently when to shutdown turbines (Vøllestad et al, 1986;Trancart et al, 2013).…”