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The scientists at CRITFC are constantly working on new research to further our understanding of salmon and their habitat. Below are the published papers and technical reports that summarize this work.

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Recent Reports

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J indicates CRITFC employee.

1 September 2018

Reproductive Performance and Energy Balance in Consecutive and Skip Repeat Spawning Female Steelhead Reconditioned in Captivity

Steelhead Oncorhynchus mykiss are known for their life history diversity, displaying a range of freshwater residence ages, maturation ages, and spawning intervals. Female maturation is thought to be condition dependent at critical periods, during which individuals falling below energetic...

Laura Jenkins, Andrew Pierce, Neil Graham, Ryan Branstetter, Douglas Hatch, and James Nagler

1 December 2000

Anadromous Salmonid Recovery in the Umatilla River Basin, Oregon: A Case Study

The Umatilla River Basin Fisheries Restoration Plan was initiated in the early 1980s to mitigate salmonid losses caused by hydroelectric development and habitat degradation. The objectives are to enhance the abundance of endemic steelhead and reintroduce extirpated chinook and coho salmon. The...

Jennifer Phillips, Jill Ory and André Talbot

22 June 2018

Plasma 11-ketotestosterone in Individual Age 1+ Spring Chinook Salmon Juvenile Males Accurately Predicts Age 2 Maturation Status

High rates of precocious male maturation of spring Chinook Salmon Oncorhynchus tshawytscha as two-year old minijacks have been observed in Columbia River Basin hatchery programs. Previously, minijack rates have been assessed by lethal sampling during the spring prior to release of the age...

Lea Medeiros, Peter Galbreath, Curtis Knudsen, Chad Stockton, Ilana Koch, William Bosch, Shawn Narum, James Nagler and Andrew Pierce

13 June 2018

Evaluating Minijack Rates in Spring Chinook Salmon

High rates of precocious male maturation of spring Chinook Salmon Oncorhynchus tshawytscha as two-year old minijacks have been observed in Columbia River Basin hatchery programs. Previously, minijack rates have been assessed by lethal sampling during the spring prior to release of the age...

Lea Medeiros, Peter Galbreath, Curtis Knudsen, Chad Stockton, Ilana Koch, William Bosch, Shawn Narum, James Nagler and Andrew Pierce

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