Chapter
Apr 26, 2012
Hydrology, Metals, and Aquatic Physical Habitat in the Upper Animas Watershed, Colorado
Publication: Watershed Management and Operations Management 2000
Abstract
The Upper Animas River watershed in southwestern Colorado is a watershed with historic mining districts with many small mines and mills and a few larger mines and mills. The numbers of trout may be limited by high flows during the spring runoff period and by winter streamflows. In some locations there are large particles on the stream surface that may provide cover to trout, but the presence of fines in the substrate in some areas and the presence of large particles on the surface probably limits use of the subsurface by fish. During some parts of the year metals in the interstecial waters are toxic to many aquatic animas when the stream waters are much less toxic. The concentration of copper and zinc appear to be constant during streamflows that cause the bed material would be moved by the high discharges.
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Copyright
© 2000 American Society of Civil Engineering.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Aquatic habitats
- Bed materials
- Chemical properties
- Chemistry
- Ecosystems
- Engineering materials (by type)
- Environmental engineering
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Hydrologic engineering
- Hydrology
- Materials engineering
- Particles
- River and stream beds
- River engineering
- River systems
- Rivers and streams
- Streamflow
- Toxicity
- Water and water resources
- Watersheds
Authors
Affiliations
Robert T. Milhous
Midcontinent Ecological Science Center, U.S. Geological Survey, 4512 McMurry Avenue, Fort Collins, Colorado
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