When spouses Lena Palm and Tomas Torvaldsson from Karlshamn were out on the boat early in the morning of June 24, they discovered that a strange fish had been caught in their nets.

- We were very shocked when we got the fish. My husband has been fishing all his life, and he had never seen anything like it, ”Lena Palm says.

At first, the couple thought it was a Swedish shark, when the fish swam like a shark and had "shark-like" fins. But after contacting the County Administrative Board and the researcher Jörn Gessner in Berlin, it was found that it was a Russian nuisance.

What happened to the fish?

- It had to swim around for a while on shallow water at our jetty and disappeared after a while, says Lena Palm.

"Extremely rare"

The unique discovery was made at a depth of six to eight meters in Sandvik, just outside Tärnö in Karlshamn. The fish was about 50 cm long and weighed 1.5-2 kilos.

- Russian interferer is an extremely rare guest in Swedish water with only a few previous finds. What we know is that it is not previously known from Blekinge's water, says Markus Forslund, head of department at Nature and climate at the county administrative board in Blekinge.

The unique fish was about 50 centimeters long. Photo: Private