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Population Size and Structure of Humpback Chub, Gila cypha, in Black Rocks, Colorado River, Colorado, 2003-2004

Citation

Charles W McAda, Population Size and Structure of Humpback Chub, Gila cypha, in Black Rocks, Colorado River, Colorado, 2003-2004: .

Summary

The Colorado River in Black Rocks was sampled in 2003 and 2004 to estimate size and structure of the humpback chub population. Sampling began in mid September and continued through October. Four sampling trips (4 days each: conducted in alternating weeks) were conducted in both years. Sampling was primarily done with multi-filament trammel nets (1-in inner mesh), although Gila captures were supplemented with electrofishing. Trammel nets were set in shoreline eddies in early morning and late afternoon. Nets were run at 1 to 2 hr intervals with 2 hrs set as a maximum interval. All Gila were removed from the nets, placed in fresh water and transported to a central processing point. In addition, the entire Black Rocks reach was sampled [...]

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Author :
Charles W McAda

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Communities

  • Upper Colorado River Basin

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Provenance

From Source - Mendeley RIS export <br> On - Tue May 10 10:39:26 CDT 2011

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Title Citation Population Size and Structure of Humpback Chub, Gila cypha, in Black Rocks, Colorado River, Colorado, 2003-2004

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