Effect of Habitat Alteration by Energy Resource Developments in the Upper Colorado River Basin on Endangered Fishes

The upper Colorado River system is the habitat of several endangered fish: Kendall Warm Springs dace, Colorado squawfish, humpback chub, and bonytail chub. The single most important factor contributing to the decline of these species has been the construction and operation of dams and reservoirs, which have effected flow, temperature, chemistry, biota, and migration routes. Water depletion amounting to about 25% of the total has also had similar effects, particularly by eliminating the backwater nursery areas. A predicted decrease in agricultural use and increase in energy development use would decrease the amount of used irrigation water percolating back into the groundwater and streams. In addition, water allocated...

Categories: Publication; Types: Citation, Conference Citation; Tags: Colorado River, Irrigation, Kendall Warm Springs dace, aquatic habitats, bonytail chub, All tags... chubs, dace, dams, energy, environmental effects, fish management, flow rates, habitats, humpback chub, reservoirs, rivers, water demand, water quality, water use, Fewer tags

Telemetry evaluation of invasive carp herding in Jonathan Creek Embayment, Kentucky Lake, Kentucky

Data tables represents a telemetry study assessing the efficacy of sound and electricity used to herd Silver Carp (Hypophthalmichthys molitrix). The study occurred in Jonathan Creek Embayment of Kentucky Lake, Kentucky using 10 telemetered Silver Carp and 46 passive acoustic receivers. Two herding boats traveled at 2.22 meters per second along bank-to-bank transects through the study area (longitudinal progression rate = 0.37 meters per second) emitting sound and electricity (“stimulus”) or no added stimuli (“control”). Fish movement responses included fish presence in the refuge-zones located at either end of the embayment, fish presence fore of herding boats, and fish presence within 100 meters, 200 meters, 400...

Tags: Aquatic Biology, Jonathan Creek, Kentucky, Kentucky Lake, Marshall county, All tags... USGS Science Data Catalog (SDC), animal behavior, biota, electrofishing, fish, fish behavior, fish deterrence, fish herding, fish management, invasive species, natural resource management, silver carp, telemetry, Fewer tags

Intermountain freshwater mollusks, USA (Margaritifera, Anodonta, Gonidea, Valvata, Ferrissia): geography, conservation, and fish management implications

Field collections at more than 2900 sites and the examination of many museum collections and literature allowed me to map the historical and current distribution of several freshwater molluscan faunal groups in the Intermountain region of the United States (Great Basin, Colorado River drainage basin, and upper Snake River sub-basin). Historical and current records show that Margaritifera falcata, Anodonta californiensis, and Ferrissia rivularis have drainage-specific distributions, while Valvata utahensis has a specific drainage pattern, and V. californica (new combination) has a dispersed pattern. Shell morphometric data of Valvata and Ferrissia show extensive shell variation between and within populations. Current...

Categories: Publication; Types: Citation, Journal Citation; Tags: Anodonta, Ferrissia, Gonidea, Intermountain West, Margaritifera, All tags... Monographs of the Western North American Naturalist, Monte L. Bean Life Science Museum, Brigham Young University, Valvata, conservation, distribution, fish management, mollusks, Fewer tags