In the UK began to take a DNA fish. This is done to registration records of the national fishing. Why do we need it? Many instances of fish caught in England over the last few months could claim a place of honor in the new national records. But you need to register your catch in a special service. Now in the British Committee Record Fish have Unallocated space for the registration of the following fish species: carp, roach and the redeye. No fisherman is not yet applied. According to the fish results were zeroed in 2013 last year due to the fact that these fish have the unique ability to interbreed with other species of fish.
Today very often hybrid breed goldfish and carp. There are cases that the carp become the closest relatives of the chubs. And roach freely hybridizes with Leshem or Rudd.
In order to determine whether the submitted fee fish thoroughbred need to analyze its DNA.