A new World Wildlife Fund study shows since 1970, more than 80% of the global populations of freshwater migratory fish have declined significantly. The report calls developments in its Living Planet Index "distressing," and faults habitat loss and degradation. It says factors like river fragmentation due to dams, and agricultural encroachment, account for half of the threats. .
Report Reveals Catastrophic Decline of Migratory Fish yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Collapse in migratory fish populations threatens health of millions and critical freshwater ecosystems phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.