title: Forensic assignment to geographic origin, a useful tool in seafood fraud control.
abstract: Seafood fraud is an economically motivated and widely spread problem encompassing drastic consequences in both public health and species conservation. In Northern Spain, only the first Atlantic salmon (Salmo salar) catch of the angling season (named Campanu) can be sold. In the year 2011, an angler denounced it on regional Court claiming that the Campanu (which was sold in 6000€) was fraudulent because it had been caught from another river than the fisherman ("the seller") stated. Here, we report the first judicial case of application of geographical genetic assignment in a fish species in Spain. In order to accomplish this, genetic assignments to their rivers of origin of the Campanu and another three following salmon catches of the angling season of the year 2011 were performed. A panel of eight microsatellite loci together with a comprehensive genetic baseline of the rivers of the region were employed. Results showed that the Campanu was the only case in which genetic assignment and fisherman declaration of the river of origin did not match. The methodology here employed showed to be very useful as a reinforcement of other evidences contributing to fight against seafood fraud in Courts.
authors.affiliation: Department of Biodiversity and Ecologic Restoration, Instituto Pirenaico de Ecología (IPE-CSIC), Avda. Nuestra Señora de la Victoria 16, 22700 Jaca, Spain. Electronic address: horreojose@gmail.com.
authors.forename: J L
authors.initials: JL
authors.lastname: Horreo
authors.affiliation: Zoology and Evolutionary Biology, Department of Biology, University of Konstanz, Universitatstrasse 10, 78467 Konstanz, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Machado-Schiaffino
authors.affiliation: Department of Functional Biology, University of Oviedo, C/Julián Clavería s/n, 33006 Oviedo, Spain.
authors.forename: E
authors.initials: E
authors.lastname: García-Vázquez
keywords: Atlantic salmon; Court; Evidence; Genetic identification; Salmo salar; Trial