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Filtering by: Academic Affiliation Fisheries and Wildlife Creator Pearsons, Todd N. Date 1994

Formation and maintenance of fish assemblages in a high desert Oregon stream

Creator:

Pearsons, Todd N.

Abstract:

Considerable controversy exists about how fish assemblages are organized. I explicitly took fish movement into account while I studied the effects of disturbance, habitat complexity, and predation at different times of the summer to understand the major factors influencing assemblage structure in a high desert Oregon stream. The effects of...

Resource Type:

Dissertation
Cumulative effects of riparian disturbances along high desert trout streams of the John Day Basin, Oregon

Creator:

Li, Hiram W., Lamberti, Gary A., Pearsons, Todd N., Tait, Cynthia K., Li, Judith L., and Buckhouse, John C.

Abstract:

In a study of cumulative effects of riparian disturbance by grazing on the trophic structure of high desert trout streams, watersheds with greater riparian canopy had higher standing crops of rainbow trout Oncorhynchus mykiss, lower daily maximum temperatures (range, 16-23°C compared with 26-31°C), and perennial flow. Watershed aspect influenced the...

Resource Type:

Article