Difference between revisions of "GCDAMP RAZU Fish"
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− | 2018 | + | '''2018''' |
*[https://www.youtube.com/watch?v=UKxERIqySEE&feature=youtu.be Razorback & Flannelmouth Sucker Hybridization] | *[https://www.youtube.com/watch?v=UKxERIqySEE&feature=youtu.be Razorback & Flannelmouth Sucker Hybridization] | ||
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/18jan25/AR19.pdf Razorback Sucker Xyrauchen texanus research and monitoring in the Colorado River inflow area of Lake Mead and Grand Canyon, Arizona and Nevada PPT] | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/18jan25/AR19.pdf Razorback Sucker Xyrauchen texanus research and monitoring in the Colorado River inflow area of Lake Mead and Grand Canyon, Arizona and Nevada PPT] | ||
*[[Media:ALBRECHT.PDF| Brandon Albrecht et al., 2018, Use of inflow areas in two Colorado River basin reservoirs by the endangered razorback sucker (Xyrauchen texanus), Western North American Naturalist]] | *[[Media:ALBRECHT.PDF| Brandon Albrecht et al., 2018, Use of inflow areas in two Colorado River basin reservoirs by the endangered razorback sucker (Xyrauchen texanus), Western North American Naturalist]] | ||
− | 2017 | + | '''2017''' |
*[[Media:CRI LGC 2017 Final.pdf| BioWest-Razorback Sucker 2017 Final Report]] | *[[Media:CRI LGC 2017 Final.pdf| BioWest-Razorback Sucker 2017 Final Report]] | ||
*[http://www.bioone.org/doi/10.1894/0038-4909-62.3.227 Kegerries et al. 2017. Occurrence and Reproduction by Razorback Sucker (Xyrauchen texanus) in the Grand Canyon, Arizona. Southwest Naturalist.] | *[http://www.bioone.org/doi/10.1894/0038-4909-62.3.227 Kegerries et al. 2017. Occurrence and Reproduction by Razorback Sucker (Xyrauchen texanus) in the Grand Canyon, Arizona. Southwest Naturalist.] | ||
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*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15apr21/Attach_04c.pdf Razorback Sucker ''Xyrauchen texanus'' Research and Monitoring in the Colorado River Inflow Area of Lake Mead and the Lower Grand Canyon, Arizona and Nevada] | *[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15apr21/Attach_04c.pdf Razorback Sucker ''Xyrauchen texanus'' Research and Monitoring in the Colorado River Inflow Area of Lake Mead and the Lower Grand Canyon, Arizona and Nevada] | ||
− | 2014 | + | '''2014''' |
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/14oct28/Attach_14b.pdf New Information on Razorback Sucker in Western Grand Canyon and Lake Powell ] | *[http://www.usbr.gov/uc/rm/amp/twg/mtgs/14oct28/Attach_14b.pdf New Information on Razorback Sucker in Western Grand Canyon and Lake Powell ] | ||
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/14aug27/Attach_09.pdf New Information on Razorback Sucker in Western Grand Canyon ] | *[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/14aug27/Attach_09.pdf New Information on Razorback Sucker in Western Grand Canyon ] | ||
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/14jan30/AR_Healy_NF&RBS.pdf Native Fish Population Trends – Grand Canyon Tributaries Razorback Sucker: Status and Habitat Use (Healy)] | *[http://www.usbr.gov/uc/rm/amp/twg/mtgs/14jan30/AR_Healy_NF&RBS.pdf Native Fish Population Trends – Grand Canyon Tributaries Razorback Sucker: Status and Habitat Use (Healy)] | ||
− | 2012 | + | '''2012''' |
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06a.pdf The Potential of Habitat for the Razorback Sucker in the Lower Grand Canyon Report and PPT] | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06a.pdf The Potential of Habitat for the Razorback Sucker in the Lower Grand Canyon Report and PPT] | ||
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06b.pdf Strategy for Establishing the Razorback Sucker in the Lower Grand Canyon and Lake Mead Infow Report] | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06b.pdf Strategy for Establishing the Razorback Sucker in the Lower Grand Canyon and Lake Mead Infow Report] | ||
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06c.pdf Review and Summary of Razorback Sucker Habitat in the Colorado River System Report] | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06c.pdf Review and Summary of Razorback Sucker Habitat in the Colorado River System Report] | ||
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06d.pdf Razorback Sucker in Lake Mead, Lake Powell and Lower Grand Canyon - What's New and What's Next PPT] | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12oct24/Attach_06d.pdf Razorback Sucker in Lake Mead, Lake Powell and Lower Grand Canyon - What's New and What's Next PPT] | ||
+ | |||
+ | '''2009''' | ||
+ | *[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/09aug12/Attach_12a.pdf AIF: 2007 and 2008 Conservation Measures and Conservation Measures Razorback Sucker PPT] | ||
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Revision as of 11:21, 9 July 2018
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Razorback sucker (Xyrauchen texanus)Three to 5 million years ago, a unique-looking fish with a sharp-edged hump “razorback” behind its head swam the Colorado River and its tributaries. The razorback sucker is an endangered, native fish of the Colorado River and the only member of the genus Xyrauchen. It has a dark, brownish-green upper body with a yellow to white-colored belly and an abrupt, bony hump on its back shaped like an upside-down boat keel. One of the largest suckers in North America, the razorback sucker can grow to 3 feet in length and can live for more than 40 years. Razorback sucker can reproduce at 3 to 4 years of age. Depending on water temperature, spawning can occur as early as November or as late as June. In the Upper Colorado River Basin razorback sucker typically spawn between mid-April and mid-June. Razorback sucker eat insects, plankton, and plant matter on the bottom of the river. To complete its life cycle, the razorback sucker moves between adult, spawning, and nursery habitats. Spawning occurs during high spring flows when razorback sucker migrate to cobble bars to lay their eggs. Larvae drift from the spawning areas and enter backwaters or floodplain wetlands that provide a nursery environment with quiet, warm, and shallow water. Research shows that young razorback sucker can remain in floodplain wetlands where they grow to adult size. As they mature, razorback sucker leave the wetlands in search of deep eddies and backwaters where they remain relatively sedentary, staying mostly in quiet water near the shore. In the spring, razorback sucker return to the spawning bar, often quite a long distance away, to begin the life cycle again.
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Fish Species of the Colorado River in Lower Glen Canyon and Grand Canyon |
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