Modeled smallmouth bass entrainment and population growth rates in the Colorado River in Glen and Grand Canyons in support of resource impact analysis for Post-2026 reservoir operational alternatives
These data were compiled in support of the Post-2026 Operational Guidelines and Strategies for Lake Powell and Lake Mead (Post 2026) Environmental Impact Statement (EIS). These data were outputs from models that estimate annual smallmouth bass entrainment through Glen Canyon Dam and annual smallmouth bass population growth rate (lambda) in the Colorado River below Glen Canyon Dam. The objective of our study was to predict smallmouth bass entrainment and population growth rate from 2027 to 2060 under nine different alternatives representing different Colorado River water management scenarios. The alternatives were implemented under multiple hydrologies (for a total of 1200 unique possible futures per alternative, except for the Preferred Alternative which had 400 unique possible futures).
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Drew Eppehimer", "@type": "vcard:Contact", "hasEmail": "mailto:deppehimer@usgs.gov" } |
| description | These data were compiled in support of the Post-2026 Operational Guidelines and Strategies for Lake Powell and Lake Mead (Post 2026) Environmental Impact Statement (EIS). These data were outputs from models that estimate annual smallmouth bass entrainment through Glen Canyon Dam and annual smallmouth bass population growth rate (lambda) in the Colorado River below Glen Canyon Dam. The objective of our study was to predict smallmouth bass entrainment and population growth rate from 2027 to 2060 under nine different alternatives representing different Colorado River water management scenarios. The alternatives were implemented under multiple hydrologies (for a total of 1200 unique possible futures per alternative, except for the Preferred Alternative which had 400 unique possible futures). |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P1PPNNMQ", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6925e668d4be02656a6d35c9.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6925e668d4be02656a6d35c9 |
| keyword |
[ "Glen Canyon Dam", "Glen Canyon National Recreation Area", "Grand Canyon National Park", "Lees Ferry", "USGS:6925e668d4be02656a6d35c9", "utilitiesCommunication" ] |
| modified | 2026-07-24T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -113.9722, 35.6751, -111.4783, 36.9235 |
| theme |
[ "geospatial" ] |
| title | Modeled smallmouth bass entrainment and population growth rates in the Colorado River in Glen and Grand Canyons in support of resource impact analysis for Post-2026 reservoir operational alternatives |
