Water temperature models, data and code for the Colorado, Green, San Juan, Yampa, and White rivers in the Colorado River basin

These data were compiled for a manuscript in which 1) we develop a water temperature model for the major river segments and tributaries of the Colorado River basin, including the Colorado, Green, Yampa, White, and San Juan rivers; 2) we link modeled water temperature to fish population data to predict the probability native and nonnative species will be common in the future in a warming climate; and 3) assess the degree to which dams create thermal discontinuity in summer in river segments across the western US. Per goal #1, we developed a water temperature model using data spanning 1985-2015 that predicts water temperature every 1 mile (1.6-km) in rivers both now and in the future due to the potential influence...

Tags: Aquatic Biology, Arizona, Arkansas River basin, Black Rocks, Colorado, All tags... Colorado River, Colorado River basin, Colorado pikeminnow, Cyprinella lutrensis, Desolation Canyon, Dinosaur National Monument, Ecology, Geography, Gila cypha, Gray Canyon, Green River, Hydrology, Ictalurus punctatus, Information Sciences, Little Colorado River, Lower Colorado river basin, Micropterus dolomieu, Missouri River basin, Nevada, New Mexico, Pacific Northwest, Ptychocheilus lucius, Red River basin, San Juan River, USGS Science Data Catalog (SDC), Upper Colorado river basin, Utah, Water Resources, Westwater Canyon, White River, White River basin, Wyoming, Xyrauchen texanus, Yampa River, biota, channel catfish, climate change, climatologyMeteorologyAtmosphere, endangered species, environment, fish, humpback chub, inlandWaters, nonindigenous species, razorback sucker, red shiner, reservoir storage, smallmouth bass, thermal discontinuity, water temperature, western Grand Canyon, western United States, Fewer tags

Vulnerability of Critical Fish Habitat to Oil and Gas Development in the Green River Basin

For the Green River Basin Landscape Conservation Design (GRB LCD) assessment, we mapped the vulnerability of the critical habitat for threatened and endangered fish species to oil and gas development for each 12-digit hydrologic unit. The following threatened and endangered fish species were included in this vulnerability assessment: Colorado pikeminnow (Ptychocheilus lucius), Bonytail Chub (Gila elegans), Humpback chub (Gila cypha), and razorback sucker (Xyrauchen texanus). Using a vulnerability framework, we defined Sensitivity (S) as the average combined area of critical fish habitat within HUC12 polygons. Exposure (E) to oil and gas development was quantified the log transformed upstream flow accumulation of...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Colorado, Colorado, EARTH SCIENCE > LAND SURFACE > LANDSCAPE, Green River Basin, Green River Basin, All tags... LCC Network Science Catalog, LCC Network Science Catalog, Utah, Utah, Wyoming, Wyoming, biota, biota, bonytail chub, bonytail chub, colorado pikeminnow, colorado pikeminnow, completed, critical fish habitat, critical fish habitat, environment, gila cypha, gila cypha, gila elegans, gila elegans, humpback chub, humpback chub, landscape conservation design, landscape conservation design, map, oil and gas, oil and gas, ptychocheilus lucius, ptychocheilus lucius, razorback sucker, razorback sucker, vulnerability, vulnerability, xyrauchen texanus, xyrauchen texanus, Fewer tags

Distribution, movements, and habitat use of razorback sucker (Xyrauchen texanus) in a lower Colorado River reservoir, Arizona-Nevada

Distribution, movements, and habitat use of 10 wild adult razorback suckers (Xyrauchen texanus) were examined in Lake Mohave, Arizona-Nevada, from November 1994 through July 1997. Movement rates (0.00?17.35 km d?1) and ranges (x?= 39 km) were similar to those for riverine populations. All study fish returned to spawning sites used in previous years, but they also visited other spawning areas. Spawning females were significantly (P = 0.031) more active than males (480 vs. 87 m d?1) and moved substantial distances between spawning sites during peak reproduction (1?28 February). Fish became most active (m d?1, km month?1) after spawning and moved to areas known to support higher algal production. Fish were typically...

Categories: Publication; Types: Citation, Journal Citation; Tags: Western North American Naturalist, Xyrauchen texanus, habitat, movements, razorback sucker, All tags... reservoir, spawning, telemetry, Fewer tags

An Evaluation of the Role of Tributary Streams for Recovery of Endangered Fishes in the Upper Colorado River Basin, with Recommendations for Future Recovery Actions

We evaluated the role of major tributary streams for endangered fish recovery using a matrix approach based on quantitative information. However, the need for ranking tributaries for direct and indirect contributions (i.e., assignment of high, medium or low importance) required a more subjective approach. Some streams differed in actual and potential importance because barriers deny fish access to suitable habitat. We have not assigned relative importance to the different types of contributions; to a large extent that may involve policy issues better addressed by the Recovery Program.

Categories: Publication; Types: Citation; Tags: Colorado River, Colorado pikeminnow, Endangered species recovery, Gila cypha, Gila elegans, All tags... Green River, Ptychocheilus lucius, Xyrauchen texanus, bonytail chub, endangered fishes, environmental constraints, fish habitat, humpback chub, razorback sucker, sediment, tributary streams, water flow, water quality, Fewer tags

Hazard assessment of inorganics, individually and in mixtures, to two endangered fish in the San Juan River, New Mexico

Acute toxicity tests were conducted for 96 h with larval Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus) in a reconstituted water quality simulating the San Juan River near Shiprock, New Mexico, to determine biological effect concentrations. Tests were conducted with arsenate, copper, selenate, selenite, zinc, and five mixtures of seven to nine inorganics simulating environmental mixtures reported for sites along the San Juan River (Ojo Amarillo Canyon, Gallegos Canyon, Hogback East Drain, Mancos River, and McElmo Creek). Razorback suckers were significantly more sensitive to arsenate, selenate, selenite, Hogback East Drain mixture, and Ojo Amarillo Canyon mixture than were Colorado...

Categories: Publication; Types: Citation, Journal Citation; Tags: Environmental Toxicology and Water Quality, Ptychocheilus lucius, Xyrauchen texanus, acute toxicity tests, hazard assessment, All tags... inorganics, Fewer tags

Razorback sucker movements and habitat use in the San Juan River inflow, Lake Powell, Utah, 1995-1997

Seventeen subadult, hatchery-reared razorback suckers (Xyrauchen texanus; (x? = 456 mm total length) were implanted with sonic transmitters and tracked for 23 months in the lower 89.6 km of the San Juan River (San Juan arm of Lake Powell, Utah). Fish were released at 2 sites, and 9 made extensive up- and downstream movements (x? = 47.8 km; contact was lost with 4, and 4 others presumably died or lost their transmitters). The San Juan arm is primarily inundated canyon; however, most fish contacts occurred in shallow coves and shoreline with thick stands of flooded salt cedar in the upper inflow area. Eight fish frequented the Piute Farms river/lake mixing zone, and at least 4 moved upstream into the San Juan River....

Categories: Publication; Types: Citation, Journal Citation; Tags: San Juan River inflow, Western North American Naturalist, Xyrauchen texanus, razorback sucker