The common roach is found throughout Europe except for the area around the Mediterranean, and its distribution reaches eastward into Siberia. Eastern Europe and Asia have several subspecies, some with an anadromous lifecycle living around the Caspian and Black Seas. The spawning season is in April and May. Most often, spawning occurs on sunny days. Roach generally spawn at the same location each year. Large males form schools where females enter. Males trail the females and fertilize their eggs. The behaviour is rough and the fish often jump out of the water. A female can lay up to 100,000 eggs.