Portions of the Cumberland River, in southern Kentucky, are at risk of becoming too hot for the prized trout living there.
As a result, state fish and wildlife officials are relaxing rules on how many of the fish can be taken from the river.
Starting Sunday, June 17, 2007, anglers can keep ten trout of any size caught on a 40-mile lower stretch of the Cumberland.
Officials worry that warming waters could cause a fish kill along that stretch of river.
The relaxed trout limits apply from the Tennessee line to just upstream from the public boat ramp at Burkesville.
River temperatures have risen during a spell of hot, dry weather combined with lower water flows from Lake Cumberland.