FISH

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Humpback-large- PIC.jpg

Description of what the FISH page contains

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News



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Quick Facts

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  • Little Colorado River PIT-tag arrays.jpg



◦ Four types of fish that frequent the Colorado River and Lake Powell are officially endangered because of the construction of dams and introduction of non-native species: the razorback sucker, Colorado pikeminnow, humpback chub and bonytail. Native ◦ In addition to the above, Lake Powell is naturally home to the bluehead sucker, flannelmouth sucker, roundtail chub and speckled dace. ◦ Non-Native Bass ◦ The National Park Service introduced three types of bass specifically for fishing purposes: the smallmouth bass, largemouth bass and striped bass. Other Non-Natives For Fishing ◦ Other non-native species have been introduced into Lake Powell with the intent of challenging fisherman. These include walleye, rainbow trout, channel catfish, bluegill and black crappie. Problematic Non-Native ◦ Though almost all non-natives are damaging to native ecosystems, the gizzard shad is causing many problems to the native and non-native fish populations because of its large size. The fish has spread throughout the lake and have no natural predators.





INFORMATION

Reports and Links

Other Stuff


  • Important Science Insight of 2012 page 1.jpg
  • Important Science Insight of 2012 page 2.jpg
LINK: usbr/amp/amwg/mtgs/13feb20/Attach_07b|
Non Native Fish Control in Tributaries - Grand Canyon National Park Slide 3.jpg
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Non Native Fish Control in Tributaries - Grand Canyon National Park Slide 32.jpg
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GRAPH- RBT and HBC numbers by river mile Korman- Yard 2013.jpg