The Department of Natural Resources is worried about Iowa’s fish population.
The DNR says the state loses fish every year during the winter but officials add this winter is worse than most with a higher death toll.
Officials are most concerned with areas in northwest Iowa where many ice anglers reported seeing dead fish through their underwater cameras.
The DNR has placed aeration systems at a few lakes in hopes of helping.
Experts say the last time there was a winter this rough was back in 2008.