How many times a year do you do research on endangered fish in the Colorado River?

Welcome to CoreFacts. I'm Tiana from Page Middle School in Arizona.

Today's question is...

How many times a year do you do research on endangered fish in the Colorado River?

This is Matthew Andersen.  I am the Biology Program Manager at the USGS Grand Canyon Monitoring and Research Center in Flagstaff, Arizona.

We conduct at least eight trips each year to look at endangered fish populations and although we are interested in all of the fish in the Grand Canyon, we are especially interested in the endangered humpback chub. Of those eight trips, six of them are up the Little Colorado River because that's where humpback chub spawn in the Grand Canyon so we have a better chance of catching them. And then the remaining two trips are going down the mainstem Colorado River in the Grand Canyon.

Thanks Matthew.  You are most welcome Tiana.

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