A database for fish genes

The clear identification of species and origin of internationally traded fishery products is crucial for the monitoring of fishing activities and the traceability of the products. However, an unequivocal species identification usually requires expert knowledge, and in the case of processed products, identification based on visual characteristics is often impossible. As a result, there are misdeclarations, concealment of illegal fishing and consumer uncertainty.

Molecular genetic methods allow a clear determination of fish species and conclusions about their origin. At the Thünen Institute, we have developed a publicly accessible image and DNA database (https://www.aquagene.org) that is intended to enable control authorities and consumer advocates to uncover illegal imports of fishery products and thus protect endangered species in the countries of origin more effectively.

The database now includes more than 600 fish species from over 150 families and is constantly growing.