Cardinal tetra aquarium fish traced to Amazon origins in NPR report
8 reported
NPR’s Planet Money podcast traced the journey of the cardinal tetra, a popular aquarium fish, from pet stores back to its origins in the Amazon. The report followed local fisherman Valderas Siqueira as he caught the fish in the jungles of Brazil near the town of Barcelos, known as the capital of ornamental fish. According to conservation biologist Scott Dowd, fishermen were taking at least 20 million cardinals from these waters each year, a number that initially concerned him but later proved to be a tiny fraction of the total population. The fishing industry in Barcelos has faced competition from fish farms in Southeast Asia that now breed cardinal tetras in captivity, reducing demand for wild-caught fish. Local fishbroker Aramara Castro is working with Dowd to market the fish by emphasizing their Amazonian origin and the story of the fishermen who catch them. The report notes that Barcelos previously lost its rubber industry when Europeans transplanted rubber trees to Southeast Asia.
What’s reported
The cardinal tetra is a small, silvery blue fish with a bright red stripe sold worldwide.
The fish originally comes from the Amazon, specifically near Barcelos, Brazil.
Fisherman Valderas Siqueira can scoop up 10,000 cardinal tetras on a good day.
Scientist Scott Dowd estimated at least 20 million cardinals were taken from these waters annually.
Dowd initially felt the number was too high but later realized it was a tiny fraction of the total population.
Fish farms in Southeast Asia have learned to breed cardinal tetras in captivity, taking over most of the market.
Barcelos previously lost its rubber industry when Europeans transplanted rubber trees to Southeast Asia.
Local fishbroker Aramara Castro is working with Dowd to market the fish based on their Amazonian origin.
Key figures
Valderas Siqueira: local fisherman in Barcelos, Brazil
Scott Dowd: conservation biologist, formerly at New England Aquarium
Aramara Castro: local fishbroker in Barcelos, Brazil
Jeff Guo: NPR reporter for Planet Money
Sources: NPR
