Tracking silver European eel (Anguilla anguilla) escapement from Mondego River Basin

Acoustic telemetry data of silver eels during their downream migration from the River Mondego (Portual). Escapement rate was estimated during two consecutive spawning seasons (2014-2016) and their migratory behaviour was studied. 47 silver eels (males and females) were tagged with acoustic transmitters and their migration was monitored with automatic receivers (VR2W - listening at 69kHz) deployed at four locations along the river course, from the first impassable obstacle (downstream Raiva Dam) up to the river mouth (67 km).