They had become extinct there in the 1960s.
Recently, however, Reusel water quality has improved. Meanders and pebbly soil, lamprey habitat, came back. Last year, brook lampreys were reintroduced from the only other place in North Brabant where they still lived, the Dommel stream. This spring, brook lampreys are spawning in the Reusel again, for the first time after decades.