This event, organized by Wetlands International and the Gualeguaychu municipality, took place on May 14th in Gualeguaychu city on the Uruguay River and comprised several talks related to the economic, social and ecological relevance of migratory species. That meeting was participative and included different stakeholders related to migratory species and related activities in Gueleguaychu city but also from other basin areas to bring awarness about the need to sustain migratory fish populations.