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ID: Genetic Trends in Wild Whirling Disease Resistant Rainbow Trout Populations
Genetic Trends in Wild Whirling Disease Resistant Rainbow Trout Populations
Type: 
Subjects: 
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        Genetic Trends in Wild Whirling Disease Resistant Rainbow Trout Populations    

                    Description:Led By
​Dr. Eric R. Fetherman
Study Area
Colorado River and Gunnison River
Project Status
Ongoing
Research Objectives
Evaluate genetic changes over time in rainbow trout populations established using whirling disease resistant rainbow trout.
Project Description
Rainbow trout populations across the state have been re-established within the last decade using whirling disease resistant rainbow trout strains. Management changes from water to water, with different strains being stocked for different management purposes. Additionally, the size of fish stocked can differ among waters or years dependent upon management goals.
As these rainbow trout strains become established and start reproducing naturally, outcrossing and backcrossing can occur. Outcrossing can also occur in the hatchery as a result of maintaining crosses of wild and whirling disease resistant rainbow trout strains as opposed to the pure strains. Outcrossing and backcrossing can result in differential expression of the genes controlling for resistance to whirling disease through selection in both hatcheries and in the wild, and could result in loss of resistance over time.
This study is designed to look at the genetic composition of wild whirling disease resistant rainbow trout populations across years since they were established. Using stocking records to determine parental origin of wild fish, and collecting genetics from both the adult spawning population and age-0 fish naturally produced in the wild, researchers will be able to determine how different management strategies affect the genetics of these populations. Additionally, disease information collected from these same individuals will be used to determine if whirling disease resistant characteristics are changing or being maintained in these populations.
This study focuses primarily on the wild rainbow trout populations in the Colorado and Gunnison Rivers, although samples collected from other river systems will help elucidate trends statewide. This is a collaborative project between Colorado Parks and Wildlife, Colorado State University, and the University of California Davis.​
 [show more]                

ID: Geostatistical capture–recapture models
Geostatistical capture–recapture models
Type: Text
Subjects: Guassian process
MCMC
Population estimation
Recursive Bayes
Item 

        Geostatistical capture–recapture models    
Type:Text
Subject:Guassian process
MCMC
Population estimation
Recursive Bayes

                    Description:Abstract: Methods for population estimation and inference have evolved over the past decade to allow for the incorporation of spatial information when using capture–recapture study designs. Traditional approaches to specifying spatial capture–recapture (SCR) models often rely on an individual-based detection function that decays as a detection location is farther from an individual’s activity center. Traditional SCR models are intuitive because they incorporate mechanisms of animal space use based on their assumptions about activity centers. We modify the SCR model to accommodate a wide range of space use patterns, including for those individuals that may exhibit traditional elliptical utilization distributions. Our approach uses underlying Gaussian processes to characterize the space use of individuals. This allows us to account for multimodal and other complex space use patterns that may arise due to movement. We refer to this class of models as geostatistical capture–recapture (GCR) models. We adapt a recursive computing strategy to fit GCR models to data in stages, some of which can be parallelized. This technique facilitates implementation and leverages modern multicore and distributed computing environments. We demonstrate the application of GCR models by analyzing both simulated data and a data set involving capture histories of snowshoe hares in central Colorado, USA. [show more]                

ID: Get to know your native Rio Grande cutthroat trout: a Colorado treasure
Get to know your native Rio Grande cutthroat trout: a Colorado treasure
Type: Brochure
Subjects: Cutthroat trout
Item 

        Get to know your native Rio Grande cutthroat trout: a Colorado treasure    
Type:Brochure
Subject:Cutthroat trout

                    Description:The Rio Grande cutthroat was the first trout to be encountered by Europeans in the West. In 1541, Francisco de Coronado’s expedition to find the mythical cities of gold came across the Rio Grande cutthroat in the upper Pecos River near what is now Santa Fe, New Mexico. [show more]                

ID: Gill Lice in Colorado Fact Sheet (2018)
Gill Lice in Colorado Fact Sheet (2018)

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Subjects: 
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        Gill Lice in Colorado Fact Sheet (2018)

ID: Gray Wolf Reintroduction 'Education Session #1'
Gray Wolf Reintroduction 'Education Session #1'
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Subjects: 
Item 

        Gray Wolf Reintroduction 'Education Session #1'    

                    Description:CPW is providing a series of education sessions dedicated to the gray wolf reintroduction program. This video, recorded on April 29, 2019, is the first in this series.


Learn more about CPW's gray wolf reintroduction program at:

https://cpw.state.co.us/learn/Pages/Wolves-Stay-Informed.aspx [show more]                

ID: Gray Wolf Reintroduction 'Education Session #2'
Gray Wolf Reintroduction 'Education Session #2'
Type: 
Subjects: 
Item 

        Gray Wolf Reintroduction 'Education Session #2'    

                    Description:CPW is providing a series of education sessions dedicated to the gray wolf reintroduction program. This video is the second in this series.



Learn more about CPW's gray wolf reintroduction program at:

https://cpw.state.co.us/learn/Pages/Wolves-Stay-Informed.aspx [show more]                

ID: Gray Wolf Reintroduction 'Education Session #3'
Gray Wolf Reintroduction 'Education Session #3'
Type: Moving Image
Subjects: Gray wolf
Item 

        Gray Wolf Reintroduction 'Education Session #3'    
Type:Moving Image
Subject:Gray wolf

                    Description:CPW is providing a series of education sessions dedicated to the gray wolf reintroduction program. This video, recorded on June 16, 2021, is the third in this series that discusses wolf-livestock damage minimization and compensation.                

ID: Gray Wolf Reintroduction pdfs
Gray Wolf Reintroduction pdfs
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Subjects: 
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        Gray Wolf Reintroduction pdfs    

                    Description:PDF files for Gray Wolf Reintroduction: Resources digital collection page.                

ID: Great Outdoors Colorado Financial and Compliance Audits
Great Outdoors Colorado Financial and Compliance Audits
Type: 
Subjects: 
Item 

        Great Outdoors Colorado Financial and Compliance Audits    

                    Description:Each year, GOCO’s finances are audited by a third-party firm, with findings reported to the state legislature. 

Annual audits back to 2014 are available as pdf documents.                

ID: Great Outdoors Colorado: Annual Report
Great Outdoors Colorado: Annual Report
Type: Text
Subjects: 
Item 

        Great Outdoors Colorado: Annual Report    
Type:Text

                    Description:Annual reports describing projects carried out in the past fiscal year using GOCO funding. These reports are specific to Colorado Parks and Wildlife; annual reports covering all of GOCO's investments can be found  href="https://goco.org/about/funded-projects#annual-reports">here.Prior to the merger of Colorado State Parks and Colorado Division of Wildlife reports were issued separately for each agency. The collection is missing some reports; all items in the collection have been digitized and are available in the list to the right or in print in the CPW Research Library (Call #: HJ 11 .C6 G741) [show more]                