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Juvenile Chinook Salmon Life History Variation: Improved Methods for Migration Monitoring in a Wilderness Environment

Citation

Oldemeyer, Bryce. (2015). Juvenile Chinook Salmon Life History Variation: Improved Methods for Migration Monitoring in a Wilderness Environment. Theses and Dissertations Collection, University of Idaho Library Digital Collections. https://www.lib.uidaho.edu/digital/etd/items/oldemeyer_idaho_0089n_10774.html

Title:
Juvenile Chinook Salmon Life History Variation: Improved Methods for Migration Monitoring in a Wilderness Environment
Author:
Oldemeyer, Bryce
Date:
2015
Embargo Remove Date:
2017-12-15
Keywords:
Bayesian Life history Salmon Steelhead Wilderness
Program:
Natural Resources
Subject Category:
Natural resource management; Ecology
Abstract:

Over the last century, wild populations of salmonids in the Columbia River basin have significantly declined. Several of these populations have been listed as “threatened” under the Endangered Species Act and collaborative multi-state, multi-agency efforts have been established to manage and restore at-risk populations. A thorough understanding of a species’ life history is necessary for effective conservation. A tool widely implemented to collect information during juvenile salmonid life stages is a rotary screw trap. Rotary screw traps sample juvenile salmonids as they migrate to the ocean but environmental conditions, low species abundances, and complex life histories can lead to sparse data. In this study I implemented a hierarchical Bayesian model to obtain abundance estimates from rotary screw traps with large periods of missing data and utilized this information to explore two predominant life history assemblages of juvenile Chinook salmon that have strong implications on survival and reproductive success.

Description:
masters, M.S., Natural Resources -- University of Idaho - College of Graduate Studies, 2015
Major Professor:
Kennedy, Brian P
Committee:
Copeland, Timothy S; Quist, Michael C
Defense Date:
2015
Identifier:
Oldemeyer_idaho_0089N_10774
Type:
Text
Format Original:
PDF
Format:
application/pdf

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