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J indicates CRITFC employee.

1 December 2016

Reconditioning Snake River B-Run Steelhead Kelts: A Research Report

Steelhead, the anadromous form of rainbow trout, are capable of repeat spawning (iteroparity).  Snake River steelhead have historically been classified as A-run and B-run: B-run fish usually spend 2 or more winters in the ocean and are therefore larger than the 1-sea winter A-runs.  Current...

Neil Graham, Laura Jenkins, Scott Everett, Ryan Branstetter, Andrew Pierce, and Doug Hatch

25 January 2017

Using Genetic Pedigree Reconstruction to Estimate Effective Spawner Abundance from Redd Surveys: An Example Involving Pacific Lamprey Entosphenus tridentatus

Redd surveys are a commonly used technique for indexing the abundance of sexually mature fish in streams; however substantial effort is often required to link redd counts to actual spawner abundance. In this study, we describe how genetic pedigree reconstruction can be used to estimate effective...

Steven Whitlock, Luke Schultz, Carl Schreck, and Jon Hess

1 March 2017

Can Stream and Riparian Restoration Offset Climate Change Impacts to Salmon Populations?

Understanding how stream temperature responds to restoration of riparian vegetation and channel morphology in context of future climate change is critical for prioritizing restoration actions and recovering imperiled salmon populations. We used a deterministic water temperature model to investigate...

Casey Justice, Seth M. White, Dale A. McCullough, David S. Graves, and Monica R. Blanchard

8 December 2016

Reproductive Development in Captive Reconditioned Female Steelhead Kelts: Evidence for Consecutive and Skip Spawning Life Histories

Reconditioning of post-spawned anadromous rainbow trout (steelhead kelts, Oncorhynchus mykiss) is being implemented as a recovery tool on the Yakima River in the mid-Columbia River Basin. We assessed reproductive development in female Yakima River kelts by measuring plasma estradiol-17β...

Andrew L. Pierce, Joseph W. Blodgett, Timothy D. Cavileer, Lea R. Medeiros, Josh Boyce, Lucius K. Caldwell, William J. Bosch, Ryan Branstetter, David E. Fast, Douglas R. Hatch, and James J. Nagler

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