The study looked into the effectiveness of the structures installed alongside the River Aire in Leeds to help fish move around man-made barriers such as
MIL-OSI United Kingdom: Fish go further and faster up the River Aire thanks to new passes foreignaffairs.co.nz - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from foreignaffairs.co.nz Daily Mail and Mail on Sunday newspapers.