Anadromous salmonids on the patagonian Shelf: riders of the cold estuarine southern zone? Miguel Pascual, Javier Ciancio & Carla Riva Rossi 1 April 2005 Contents Introduction 1 Ecology of anadromous salmonids 3 Anadromous salmonids in Argentinean Patagonia 4 Major research themes associated to the Antorchas project 5 Links between anadromous salmonids and ocean fronts of southern Patagonia 5 Links between the Pacific and the Atlantic Oceans through the anadromous salmon life cycle 6 References 7 1 Centro Nacional Patagónico, CONICET, Puerto Madryn, Chubut. E-mail: pascual@cenpat.edu.ar