FISH

From Glen Canyon Dam AMP
Revision as of 23:04, 24 June 2013 by Jthiriot (Talk | contribs) (add Fish production does not appreciably change with distance from the dam Slide 24.jpg)

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Description of what the FISH page contains

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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. Fish production does not appreciably change with distance from the dam Slide 24.jpg





INFORMATION

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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