Nearshore temperature findings for the Colorado River in Grand Canyon, Arizona: possible implications for native fish
Fact Sheet
2013-3104
By: Robert P. Ross and William S. Vernieu
Links
- More information: USGS Index Page
- Document: Report
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Abstract
Since the completion of Glen Canyon Dam, Arizona, in 1963, downstream water temperatures in the main channel of the Colorado River in Glen, Marble, and Grand Canyons are much colder in summer. This has negatively affected humpback chub (Gila cypha) and other native fish adapted to seasonally warm water, reducing main-channel spawning activity and impeding the growth and development of larval and juvenile fish. Recently published studies by U.S. Geological Survey scientists found that under certain conditions some isolated nearshore environments in Grand Canyon allow water to become separated from the main-channel current and to warm, providing refuge areas for the development of larval and juvenile fish.
Suggested Citation
Ross, R.P., Vernieu, W., 2013, Nearshore temperature findings for the Colorado River in Grand Canyon, Arizona: possible implications for native fish: U.S. Geological Survey Fact Sheet 2013-3104, 4 p., https://doi.org/10.3133/fs20133104.
ISSN: 2327-6932 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Nearshore temperature findings for the Colorado River in Grand Canyon, Arizona: possible implications for native fish |
| Series title | Fact Sheet |
| Series number | 2013-3104 |
| DOI | 10.3133/fs20133104 |
| Year Published | 2013 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Southwest Biological Science Center |
| Description | 4 p. |
| Country | United States |
| State | Arizona |
| Other Geospatial | Colorado River;Glen Canyon Dam;Grand Canyon |