Hatchery-raised salmon too crowded
Tuesday, December 22, 2009 - 11:35
in Biology & Nature
Every year, large amounts of hatchery-raised young salmonids are released into Swedish rivers and streams to compensate for losses in natural production. Butthese fish generally survive poorly in the wild. Researchers at the University of Gothenburg have discovered why: the young fish get too crowded at the hatchery.