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416 results

J indicates CRITFC employee.

May 1, 2014

A Stakeholder Project to Model Water Temperature Under Future Climate Scenarios in the Satus and Toppenish Watersheds of the Yakima River Basin in Washington, USA

The goal of this study was to support an assessment of the potential effects of climate change on select natural, social, and economic resources in the Yakima River Basin. A workshop with local stakeholders highlighted the usefulness of projecting climate change impacts on anadromous steelhead...

David Graves and Alec Maule

January 1, 2005

A Statistical Model for In-season Forecasts of Sockeye Salmon (Oncorhynchus nerka) Returns to the Bristol Bay Districts of Alaska

We developed a model for in-season age-specific forecasts of salmon returns using preseason return forecasts, age composition of in-season returns, cumulative in-season returns by fishing district, and age composition and an index of abundance from an in-season test fishery. We apply this method to...

Saang-Yoon Hyun, Ray Hillborn, James J. Anderson, and Yakama Nation Fisheries

January 4, 1988

A Systems Classification of Watersheds and Streams

Adequate management and scientific investigation of ecosystems depends on classification of landscape systems based on all significant bio-physical and associated cultural properties. The present classification is a hierarchical system design that can be modeled in terms of a natural system...

Dale McCullough

June 24, 2013

A Validation of Parentage-based Tagging Using Hatchery Steelhead in the Snake River Basin

Parentage-based tagging (PBT) is a promising alternative to traditional coded-wire tag (CWT) methodologies for monitoring and evaluating hatchery stocks. This approach involves the genotyping of hatchery broodstock and uses parentage assignments to identify the origin and brood year of their...

Craig A. Steele, Eric C. Anderson, Michael W. Ackerman, Maureen A. Hess, Nathan R. Campbell, Shawn R. Narum, and Matthew R. Campbell

July 1, 2014

A ‘Behaviorscape’ Perspective on Stream Fish Ecology and Conservation: Linking Fish Behavior to Riverscapes

Landscape ecology (and its application to rivers and streams: riverine landscapes or riverscapes) provides an expansive depiction of patterns of physical and biological phenomena, yet mechanisms driving those patterns are rarely identified. Behavioral ecology aims to elucidate mechanisms of...

Seth M. White, Guillermo Giannico, and Hiram Li

December 27, 2011

Accounting for Tag Loss and Its Uncertainty in a Mark–recapture Study with a Mixture of Single and Double Tags

Unless accounted for in the estimation, tag loss will cause mark–recapture methods to overestimate the true abundance of a closed population and to underestimate the associated uncertainty. Current methods of accounting for tag loss require all marked individuals to be double-tagged. We present a...

Saang-Yoon Hyun, Joel Reynolds, and Peter Galbreath

September 30, 2010

Adaptation of Redband Trout in Desert and Montane Environments

Natural populations that evolve under extreme climates are likely to diverge because of selection in local environments. To explore whether local adaptation has occurred in redband trout (Oncorhynchus mykiss gairdneri) occupying differing climate regimes, we used a limited genome scan...

Shawn R. Narum, Nathan R. Campbell, Christine C. Kozfkay, and Kevin A. Meyer

June 1, 2016

Adaptive Genetic Variation Distinguishes Chilean Blue Mussels (Mytilus chilensis) from Different Marine Environments

Chilean mussel populations have been thought to be panmictic with limited genetic structure. Genotyping-by-sequencing approaches have enabled investigation of genomewide variation that may better distinguish populations that have evolved in different environments. We investigated neutral and...

Christian Araneda, Maria A. Larrain, Benhamin Hecht, and Shawn R. Narum

March 31, 2005

Age and Length Composition of Columbia Basin Chinook and Sockeye Salmon and Steelhead at Bonneville Dam in 2004

In continuation of the Stock Assessment Project, the Columbia River Inter-Tribal Fish Commission (CRITFC) conducted a field study at Bonneville Dam in 2004 to assess the age, length-at-age and stock composition of adult Pacific salmon migrating up the Columbia River, and to predict the 2005 Chinook...

Donette P. Miranda, John Whiteaker, and Jeffrey K. Fryer

April 6, 2006

Age and Length Composition of Columbia Basin Chinook and Sockeye Salmon and Steelhead at Bonneville Dam in 2005

In continuation of the Stock Assessment Project, the Columbia River Inter-Tribal Fish Commission (CRITFC) conducted a field study at Bonneville Dam in 2005 to assess the age, length-at-age and stock composition of adult Pacific salmon migrating up the Columbia River. These data were then used to...

John Whiteaker, Jeffrey K. Fryer, and Jeremiah Doyle

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