Fish

The US Fish and Wildlife Service has downlisted a Colorado River fish from endangered to threatened. KNAU’s Melissa Sevigny reports, the agency says the…

The U.S. Fish and Wildlife Service proposed today to downgrade a Colorado River fish, the razorback sucker, from “endangered” to “threatened.” KNAU’s…

Here’s a fish story for you: what if you could get paid to go fishing all day? The National Park Service wants anglers to help get rid of exotic brown…

Endangered fish in the Colorado River face multiple threats. Their survival is linked to the river’s temperature, which is altered both by climate change…

Lees Ferry on the Colorado River below Glen Canyon Dam is a world-famous rainbow trout fishery. But in recent years a different nonnative fish, the brown…

State officials are warning about elevated mercury levels in a species of fish at a Williams-area lake.The Arizona Department of Environmental Quality…

Forensic scientists (at least on TV shows) collect DNA to figure out who was at the scene of a crime. What if you could use the same technique to discover…

Low, steady releases of water from Glen Canyon Dam are taking place this spring and summer as an experiment to increase aquatic insects on the Colorado…

The Tonto National Forest has grown by 150 acres, thanks to the purchase of former ranchland near Payson along the East Verde River. KNAU’s Melissa…

A new scientific report says the razorback sucker is on its way to recovery. The report recommends “downlisting” the Colorado River fish from endangered…