The variation in shape of a crucian carp can be very high. The Prussian carp's tail is more deeply forked than that of the crucian carp. The main types of fish are Tench, Bream, Crucian Carp, Rudd and Carp. It is a popular recreation destination for hiking and fishing (for Crucian carp mainly). The crucian carp is a local delicacy and is very abundant throughout the wetland. Note&colon; The above-mentioned "crucian carp" generally refers to "Carassius auratus", unless otherwise noted. The crucian carp ("Carassius carassius") is a medium-sized member of the common carp family Cyprinidae. Crucian carp inhabit lakes, ponds, and slow-moving rivers throughout Europe and Asia.