The Fruit Crusher

The estimated potential yield for tambaqui is 15,500 tons, with the vast majority—91%—concentrated in the Central Amazon. It holds moderate significance in the Peruvian Amazon (3%), Madeira (2%), Lower Amazon (2%), Brazilian-Colombian-Peruvian Border (1%), and Upper Madeira (1%). Its potential yield is minimal in the Purus, Tocantins, and Estuary regions, each contributing less than 1% of the total.

Tambaqui is the largest fruit- and seed-eating characin in the Amazon. While juveniles primarily feed on zooplankton, they gradually transition to a diet of fruits and seeds during the high-water season. Adult tambaqui rely almost entirely on fruits and seeds. As water levels drop rapidly, they move off the floodplains and spend the low-water period in river channels. At the onset of rising water, schools of tambaqui migrate upstream to spawn in river channels before moving into the flooded forests of various river systems.

Large tambaqui are the most valuable fish in the Central Amazon market and have been heavily exploited since the late 1960s. Today, juvenile tambaqui make up most of the catch, indicating significant overfishing in both the Central and Lower Amazon regions. Although regulations exist to protect both adult and juvenile tambaqui, they are widely disregarded by fishermen and remain unenforceable across such a vast area. The most effective management approach would be to ban the sale of juvenile tambaqui in urban markets to prevent further depletion of the species.