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Knowledge of silver eel production and escapement is essential for conservation of the European eel (Anguilla anguilla) stock. Silver eel trap and transport, being undertaken (2009–2012) to mitigate for negative impacts of hydropower on eels in some Irish rivers, was therefore monitored in the River Erne (catchment area 4375 km2). Eel population analyses at an experimental fishing weir involved mark–recapture...
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