Posted: May 09, 2012 8:57 AM PDT Updated: May 09, 2012 8:57 AM PDT
IDAHO FALLS, Idaho (AP) - Idaho Fish and Game officials are trying to figure out what is killing rainbow trout in a fishing pond in Idaho Falls.
The agency says more than 100 rainbow trout died in less than a week.
Regional fisheries manager Dan Garren tells KIFI-TV (http://bit.ly/J8t1l3) that crews have been running chemical and temperature tests on the water, but have found nothing that would lead to fish deaths. They are waiting on toxicology tests on some of the dead fish.
Garren says the fish come from two separate hatcheries, he believes the problem is something happening in the lake.
He says Fish and Game has stopped stocking the pond for now.