Why freshwater migratory fish need ‘safe passage’ globally as numbers decline ^22.5%

CBC Radio - By Philip Drost - 4/11/2026, 8:00 AM

Negativity Bias 11.2% - Appeal to Emotion 10.6% - Availability Heuristic 9.2%

The dorado catfish has no issue with long travel days. The species, a massive freshwater fish found in the Amazon, migrates from the Amazon estuary in northern Brazil to the foothills of the Andes Mountains in parts of Colombia, Ecuador, Peru, Bolivia and Brazil. It's a life-long journey for these catfish — one that can take up to 11,000... more