Crucian carp

Description:

Crucian carp (Carassius carassius) is a native Belarusian fish species that previously had a wide distribution in Belarus. But nowadays, likewise all across Europe, it's being replaced by introduced goldfish (Carassius auratus) - an alien fish species brought from the Far East. As the result, now crucian carp is decreasing species with restricted range that is very likely to be included into the Red list.