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Filtering by: Contributor Office of Coastal Zone Management Creator Torgersen, Christian E. Degree Field Fisheries Science

Multiscale assessment of thermal patterns and the distribution of chinook salmon in the John Day River Basin, Oregon

Creator:

Torgersen, Christian E.

Abstract:

This study examined the distribution and behavior of adult spring chinook salmon (Oncorhynchus tshawytscha) related to patterns of stream temperature and physical habitat at channel unit, reach, and basin-wide spatial scales in both a wilderness stream and a disturbed stream in the John Day River basin in northeastern Oregon. Thermal...

Resource Type:

Masters Thesis

Full Text:

ecology of John Day salmon to aid in the management and preservation of aquatic species and their
A geographical framework for assessing longitudinal patterns in stream habitat and fish distribution

Creator:

Torgersen, Christian E.

Abstract:

New approaches are needed to quantify and understand spatial patterns of stream fishes and their environment. Concepts in riverine ecology emphasize the importance of thermal zones and gradual longitudinal changes in physical habitat and biota, but little is known about spatial variability within the river continuum. I present a conceptual...

Resource Type:

Dissertation

Full Text:

AN ABSTRACT OF THE DISSERTATION OF Christian E. Torgersen