• View of Grand Canyon National Park at sunset from the South Rim

    Grand Canyon

    National Park Arizona

There are park alerts in effect.
hide Alerts »
  • For the Next Several Days, Expect Thunderstorms and Locally Heavy Rain

    Monsoonal weather patterns have moved into the Grand Canyon area decreasing fire danger. As a result, on Tuesday, July 8 at 8 a.m. fire managers lifted fire restrictions within Grand Canyon National Park. More »

  • Temporary North Rim Road Closures Due to Galahad Fire Began May 29

    As of Thursday May 29, two road closures are in effect for public and firefighter safety. W4 road is closed from FS268B road south to Pont Sublime. W1 road is closed from W4 to western end of the Basin. More »

Canyon Sketches Vol 21  January 2011

 

View the video by clicking on the button above that matches your connection speed.
Duration = 6 minutes.

This second translocation will augment the number of humpback chub remaining in Shinumo Creek following the 2009 translocation; and in the future, possibly provide an opportunity for rearing humpback chub in a natural environment outside of the Little Colorado River.
 
2010 Humpback Chub Translocation
 

Prior to the translocation, a 13-person crew led by GRCA fisheries biologist Brian Healy spent six days surveying the translocation reaches of Shinumo Creek to get population estimates of humpback chub and other native fish (bluehead suckers and speckled dace), and removing nonnative rainbow trout. A number of humpback chub from the 2009 translocation were captured during monitoring, and population estimates are pending. A crew returned to Shinumo Creek in September for additional monitoring.

Healy said, "I was really happy that we recaptured some of the humpback chub from the 2009 translocation. They seemed to be in really great shape after spending the winter there, and enduring exceptionally high spring snowmelt runoff."
 
Bluehead sucker

Bluehead sucker

A new aspect of this project in Shinumo Creek for 2010 is estimating populations of bluehead suckers and speckled dace by marking individual fish with fin clips or PIT tags, which are small microchips that uniquely identify each fish, that are emplaced in the abdomen of the fish that were caught during surveying.

Bluehead suckers have declined in portions of their range, and aspects of this project, such as nonnative trout removal, may benefit the species over the long-term.

Healy said, "Monitoring populations of native and nonnative fish in Shinumo Creek over time will allow us to assess the effects of our experimental native fish restoration efforts, and adapt them to achieve success."



The National Park Service is directing the Shinumo Creek humpback chub translocation experiment, in conjunction with the Bureau of Reclamation, the U.S. Fish and Wildlife Service, and the Arizona Game and Fish Department.

Return to the Canyon Sketches Home Page
 

Did You Know?

JOHN HANCE, GRAND CANYON PIONEER

John Hance, early Grand Canyon guide and storyteller, said of the Canyon, "It was hard work, took a long time, but I dug it myself, with a pick and a shovel. If you want to know what I done with the dirt, just look south through a clearin' in the trees at what they call the San Francisco Peaks." More...