For the past 150 years scientists have studied all aspects of the life of Atlantic salmon in fresh water. It is less than a decade since the first expedition left Killylbegs in County Donegal to follow the journey of this truly iconic species across the wide Atlantic. Using clips from the film Atlantic Salmon Lost at Sea and a range of stunning photographs and illustrations, Ken Whelan, Associate Producer of the film and a specialist in the biology of salmon, will describe what this research has shown and discuss where and why so many salmon are dying in the North Atlantic.