Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"cutthroat"”.
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Predicting coastal cutthroat trout molt productive capacity from physiographic variables
For the management of anadromous coastal cutthroat trout, fisheries managers require an understanding of how physiographic variables, at a watershed scale, influence cutthroat smolt productive capacity. The primary purpose was to produce a practical desktop procedure to reliably predict smolt …
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Population assignment of entrained migratory Westslope Cutthroat Trout in North Idaho
… supported a robust metapopulation of Westslope Cutthroat Trout (WCT) Oncorhynchus clarkii lewisi, a western native salmonid of high cultural and economic value. The construction of impassible hydroelectric dams and smaller in-stream barriers has prevented the return of migratory WCT to spawning …
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Multigenerational effects of selenium in rainbow trout, brook trout, and cutthroat trout
… on adult female rainbow trout, brook trout, and cutthroat trout fed Se-methionine for five months, and on their larvae. Differences between fish species and between tissues were observed in the accumulation of Se in adults, and dose-dependent effects of Se on plasma thyroid hormone concentrations …
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Whole genome sequencing to characterize Cutthroat Trout populations across the Continental Divide
Cutthroat Trout (Oncorhynchus spp.) are a biological icon of western North America with the largest native range and species diversity of all North American trout. Currently, there are six recognized lineages believed to be native to the Southern Rocky Mountains. Despite almost a decade of genetic …
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Population Dynamics and Connectivity Patterns of Adfluvial and Stream-Resident Cutthroat Trout
… and connectivity patterns of threatened cutthroat trout (O. clarkii spp.) is critical for effective management and restoration. The Lahontan cutthroat trout (O. c. henshawi; LCT) is classified as threatened under the Endangered Species Act due to widespread extirpations across its range, …
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Measuring the production of migratory Westslope Cutthroat Trout in tributaries to Priest River, Idaho
… a significant contributor of migratory Westslope Cutthroat Trout Oncorhynchus clarkii lewisi (WCT) in the Clark- Fork Pend Oreille Basin (CFPOR). The goal of our study was to determine which tributaries to the lower Priest River are producing the most migratory WCT by locating their most likely …
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Assessing the threat of non-native salmonids to Lahontan cutthroat trout recovery in a subalpine watershed
… have been implicated in the decline of inland cutthroat trout subspecies. The United States Fish and Wildlife Service has been restocking Lahontan cutthroat trout Oncorhynchus clarkii henshawi in Fallen Leaf Lake, California annually since 2002 to stem this decline. Brown trout Salmo trutta …
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The influence of an ecosystem engineer on nutrient subsidies and fish invasions in southwestern Montana
… between nonnative brook charr and native cutthroat trout populations. Brook charr are native to the eastern U.S., and are a key factor in native cutthroat declines in western watersheds. Streams with beaver had potential negative impacts for cutthroat, with higher brook charr densities, …
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The influence of an ecosystem engineer on nutrient subsidies and fish invasions in southwestern Montana
… between nonnative brook charr and native cutthroat trout populations. Brook charr are native to the eastern U.S., and are a key factor in native cutthroat declines in western watersheds. Streams with beaver had potential negative impacts for cutthroat, with higher brook charr densities, …
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Life history and bioenergetic modelling of adfluvial-lacustrine coastal cutthroat trout predation in the Capilano Reservoir : implications for endangered steelhead, coho salmon and future holistic watershed management strategies
Coastal cutthroat trout (Oncorhynchus clarkii clarkii) are the apex predator in the Capilano Reservoir. This thesis investigates cutthroat predation via bioenergetic modelling and demography, and genetic analysis of hybridization with coastal rainbow / steelhead trout (O. mykiss irideus). The …
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Assessing the behavioral response of Westslope Cutthroat Trout to olfactory cues in a two-choice Y-maze
… olfactory cues were most attractive to Westslope Cutthroat Trout Oncorhynchus clarkii lewisi (WCT) in a two-choice Y-maze. WCT used in this study were from Kings Lake and Paqua Creek in Pend Oreille County, Washington, and tested in 2018 and 2019. The different odorants tested in this study were …
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Genetic Considerations for the Conservation and Management of Yellowstone Cutthroat Trout (Oncorhynchus clarkii bouvieri) in Yellowstone National Park
… about the genetic structuring of Yellowstone cutthroat trout in Yellowstone National Park. Here, we use traditional (Fst, Rst, Nm, and AMOVA) and modern (Bayesian assignment tests, coalescent theory, and nested clade analysis) analytical approaches to describe the population genetic …
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MANAGEMENT AND LIFE HISTORY CONSEQUENCES OF HYBRIDIZATION BETWEEN WESTSLOPE CUTTHROAT TROUT (ONCORHYNCHUS CLARKII LEWISI) AND RAINBOW TROUT (ONCORHYNCHUS MYKISS)
… of native fishes cannot be overstated. Westslope cutthroat trout (<italic>Oncorhynchus clarkii lewisi</italic>, WCT) are a salmonid native to the northern Rocky Mountains. These trout hybridize with rainbow trout (<italic>O. mykiss, RBT</italic>) where they are sympatric; however, in portions of …
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MANAGEMENT AND LIFE HISTORY CONSEQUENCES OF HYBRIDIZATION BETWEEN WESTSLOPE CUTTHROAT TROUT (ONCORHYNCHUS CLARKII LEWISI) AND RAINBOW TROUT (ONCORHYNCHUS MYKISS)
… of native fishes cannot be overstated. Westslope cutthroat trout (<italic>Oncorhynchus clarkii lewisi</italic>, WCT) are a salmonid native to the northern Rocky Mountains. These trout hybridize with rainbow trout (<italic>O. mykiss, RBT</italic>) where they are sympatric; however, in portions of …
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Decreasing stream habitat for Greenback cutthroat trout under future climate projections in headwater streams of the southern Rocky Mountains, Colorado
… may affect the habitat requirements for native cutthroat trout species, the suitable physical habitats have not been evaluated under future climate projections for the threatened Greenback Cutthroat Trout (GBCT) occupying the headwater regions in the Southern Rocky Mountains. Thus, this study …
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Factors Influencing the Distribution of Bull Trout and Westslope Cutthroat Trout West of the Continental Divide in Glacier National Park
… bull trout Salvelinus confluentus and westslope cutthroat trout Oncorhynchus clarkii lewisi populations west of the Continental Divide in Glacier National Park (GNP) prompted research to identify critical habitats and investigate factors influencing their distribution and relative abundance. I …
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Factors Influencing the Distribution of Bull Trout and Westslope Cutthroat Trout West of the Continental Divide in Glacier National Park
… bull trout Salvelinus confluentus and westslope cutthroat trout Oncorhynchus clarkii lewisi populations west of the Continental Divide in Glacier National Park (GNP) prompted research to identify critical habitats and investigate factors influencing their distribution and relative abundance. I …
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