SCREEN FOR CONTROLLING THE MIGRATION OF FISH IN A FLOWING STREAM SUCH AS A RIVER

摘要

A screen (10, 20, 30) for controlling the migration of fish in a flowing stream such as a river comprises an underwater anchoring device (14, 31) for anchoring close to the bottom of the flowing stream and a number of guiding elements (11, 22) which have two ends and comprise boyant ascending means. The guiding elements are connected to the underwater anchoring device in one end and are pivotally connected to the underwater anchoring device.