A NEW technology that allows fish to glide past dam walls, weirs and other river barriers has the potential to revitalise Australia’s ailing freshwater fish stocks.
Engineers and scientists at UNSW Sydney have come up with an ingenious way to get fish past dam walls, weirs and other barriers blocking their migration upstream in Australian rivers.
The so-called tube fishway is a low-cost and low-energy installation that works by pumping fish at high velocity – protected by a cushion of water – through a tube running over the obstructing barrier that delivers them safely into the water on the other side.
