ETD PDF

Movement, Distribution, and Resource Use of Westslope Cutthroat Trout in the South Fork Clearwater River Basin

Citation

Dobos, Marika Elena. (2015). Movement, Distribution, and Resource Use of Westslope Cutthroat Trout in the South Fork Clearwater River Basin. Theses and Dissertations Collection, University of Idaho Library Digital Collections. https://www.lib.uidaho.edu/digital/etd/items/dobos_idaho_0089n_10571.html

Title:
Movement, Distribution, and Resource Use of Westslope Cutthroat Trout in the South Fork Clearwater River Basin
Author:
Dobos, Marika Elena
Date:
2015
Keywords:
Radiotelemetry Snorkeling Temperature Westslope Cutthroat Trout
Program:
Natural Resources
Subject Category:
Fisheries and aquatic sciences
Abstract:

Although many Westslope Cutthroat Trout Oncorhynchus clarki lewisi populations in Idaho are robust and stable, others are depressed. In some systems, such as the South Fork Clearwater River (SFCR) system, environmental conditions (e.g., summer temperatures) are hypothesized to limit populations of Westslope Cutthroat Trout. Radiotelemetry and snorkeling methods were used to describe movement, distribution, and habitat use of Westslope Cutthroat Trout in the SFCR in 2013 and 2014. Sixty-six tags were implanted into fish (155-405 mm). Sedentary and mobile summer movement patterns of Westslope Cutthroat Trout were observed. Sixty-two sites were snorkeled along the mainstem SFCR from 5-14 August 2014 to better describe the distribution of Westslope Cutthroat Trout. Twenty-three Westslope Cutthroat Trout were observed in 12 sites and at low densities (mean ± SD; 0.0003 ± 0.0008 fish/m2). Results indicate that summer temperature was the primary factor limiting the distribution of Westslope Cutthroat Trout in the system.

Description:
masters, M.S., Natural Resources -- University of Idaho - College of Graduate Studies, 2015
Major Professor:
Quist, Michael C
Committee:
Buzbas, Erkan O; Rachlow, Janet L; Schill, Daniel J
Defense Date:
2015
Identifier:
Dobos_idaho_0089N_10571
Type:
Text
Format Original:
PDF
Format:
application/pdf

Contact us about this record

Rights
Rights:
In Copyright - Educational Use Permitted. For more information, please contact University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu.
Standardized Rights:
http://rightsstatements.org/vocab/InC-EDU/1.0/