Why are there dead fish in Denver's lakes? Experts weigh in — The Know

If you’ve been spending time around ponds and lakes in the Denver metro area recently, you may be seeing — and smelling — dead fish.

Jason Clay with Colorado Parks and Wildlife said there could be two factors at play: Heat or an algae bloom.

He said this time of year, when temperatures are regularly soaring into the high 90s, the oxygen is low in the waterways, killing the fish.

“With the heat and water temperatures rising, it causes a big drop-off in oxygen levels in the water and certain fish or species do die as a result,” he explained.

The other possibility is an algae bloom, which suck more oxygen out of the water, he said. These blooms are most common in the late summer in still bodies of water.

Read the full story from our partner at thedenverchannel.com.


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