A method for identixcation of xsh species has been developed based on the amplixcation of a specixc part of the mitochondrial genome
(tRNAGlu/cytochrome b) using the polymerase chain reaction (PCR). To distinguish between several xsh species the obtained 464 bp
long PCR-products were cut with diwerent restriction endonucleases (RE) resulting in species specixc restriction fragment length
polymorphisms (RFLP). The method is suitable for diwerentiating between, for example, Atlantic and several Pacixc salmon species.