© iStock-wrangel A Popular Freshwater Sport Fish Originating from the carp family, Cyprinidae, the common rudd is indigenous to the freshwater lakes and rivers of Europe and Asia. Unfortunately, it is also widely spread throughout North America, where it is an invasive species called American, or pearl, roach. Within its natural distribution, the common rudd is usually found around the freshwater basins of the North, Baltic, Black, Caspian, and Aral seas. This schooling game fish prefers clear lakes and slow-moving rivers where it likes to hide in shallow, weedy areas to feed on the aquatic vegetation and insects. Dark red fins, yellow eyes, and a golden frame characterize the rudd’s stout body. They can grow to 35-40 cm and weigh up to 2 kilograms. Explore the map below to find the best dive sites where common rudd live.