This study was designed to develop and implement a conservation program aimed at promoting the responsible disposal and management of litter derived from recreational fisheries at a coastal reserve in Argentina. Three interconnected actions were conducted: (1) non-participant observation and semi-structured interviews to analyze the perceptions in key players, (2) a territorial intervention consisting in the placement of specifically designed collector bins with anglers-oriented signage, and (3) a sampling of collector bins to quantify the debris disposed of in them. A total of 4995 debris items were retrieved from the bins; fishery related debris, dominated by plastic material, accounted for a greater proportion of the overall mass (212 kg). The week, sampling site, and number of fishing rods affected the mass of debris collected in bins. Citizen participation was key for the success of the program, favoring the engagement of key players and changes in attitudes towards an environmentally responsible behavior.