DNA barcoding unveils a high rate of mislabeling in a commercial freshwater catfish from Brazil.

Background And Aims: Molecular markers have contributed to species authentication by flagging mislabeling and the misidentification of commercial landings. Such tools are of great value since the market substitution of fish of lower value for highly commercialized species is expected to become more pronounced due to a shortage of natural stocks.

Materials And Methods: Here we report on the molecular identification 4results from processed fish products (i.