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Population Estimate for Humpback Chub (Gila cypha) in Desolation and Gray Canyons, Green River, Utah 2001-2003

Citation

J Michael Hudson, and Julie A Jackson, Population Estimate for Humpback Chub (Gila cypha) in Desolation and Gray Canyons, Green River, Utah 2001-2003: .

Summary

Humpback chub population estimates were determined for Desolation and Gray canyons (Deso/Gray), on the Green River, by conducting multiple pass capture-recapture sampling. Three sampling passes were conducted in 2001 and 2003, and two passes were conducted in 2002 due to low water. In 2003, sampling was moved to the fall to avoid capturing Colorado pikeminnow that use Desolation Canyon for spawning. Twelve sites were sampled throughout the two canyons. Included within these sites, were four long-term sites sampled annually by Utah Division of Wildlife Resources since 1989. Analysis of point estimates generated by capture-recapture data demonstrated that the adult humpback chub population was composed of 1,254 individuals in 2001, 2,612 [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS export <br> On - Tue May 10 10:36:36 CDT 2011

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Title Citation Population Estimate for Humpback Chub (Gila cypha) in Desolation and Gray Canyons, Green River, Utah 2001-2003

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