The Colorado River from Glenwood Springs to the Utah border is now considered positive for zebra mussels, an invasive species known to devastate ecosystems and clog critical infrastructure.

by: Morgan Whitley Posted: May 5, 2025 / 12:39 PM MDT Updated: May 5, 2025 / 12:51 PM MDT DENVER (KDVR) — An aggressive aquatic nuisance species was found in a northeastern Colorado river.

The invasive species were introduced as sport fish in Lake Powell. For a long time, the dam contained the fish, but the recent decline in reservoir levels brought the warm surface waters, and the ...

"Those habitats are changing." Experts issue warning over fish species that can survive out of water: 'We don't know if there are any others' first appeared on The Cool Down.

Sept. 14, 2022: An adult zebra mussel is found at Highline Lake in Mesa County, the first discovery of an adult in Colorado. March 2023: Colorado Parks and Wildlife treats Highline Lake three times ...

While a 40-pound carp may seem like a titan, some species can grow well over 80 pounds. Their willingness to feed on a wide variety of food sources makes them a hefty nuisance.

Northern snakehead fish are native to Asia, and were first found in the U.S. in 2002 in a pond in Maryland, according to the U.S. Fish and Wildlife Service.

An invasive species of fish that can live out of water has been found lurking in Canada, experts warn. The Department of Fisheries and Oceans Canada confirmed reports of Misgurnus anguillicaudatus ...

The pond loach, also known as the oriental weatherfish, was spotted by the Nova Scotia Invasive Species Council in the LaHave River near New Germany. Photo Credit: iStock Pond loaches are able to ...