The Study In spring 2015 RS Aqua provided a complete acoustic receiver array to support the long term monitoring of Atlantic salmon smolt during the seasonal migration in the Moray Firth. Atlantic salmon populations suffer numerous fish loses associated with the annual migration of smolt from their river nurseries to the feeding grounds of the open ocean. Salmon are a commercially important species yet little is known about the behaviour of smolt and the factors affecting their survival during this risky and energetically demanding journey. In a bid to better understand the smolt’s migration ecology researchers at the Environmental Research Institute (ERI, Scotland) have deployed an acoustic receiver array, comprised of twenty VEMCO VR2AR receivers and associated moorings, along a 2 km str

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