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The Influence of Riparian Habitat and Microhabitat Selection on Fish Assemblaqe Structure in the Upper John Day Basin, Oreqon

Creator:: Leitzinger, Eric J.
Abstract:: Fish assemblage structure was determined along a longitudinal gradient for three drainages in the upper John Day basin: Middle Fork, South Fork, and upper Mainstem proper. One or two tributaries in each drainage were included. Where possible, sites were paired: those with good versus those with poor riparian habitat. Detrended...
Resource Type:: Masters Thesis

Reduction of salmonid predators by chemical treatment

Creator:: Reeher, James A., Hewkin, James A., West, Duane C., and Oregon. State Game Commission. Fishery Division
Abstract:: The upper drainage of the John Day River system produces summer steelhead and spring chinook salmon. The fish are generally confined to the main stem and its tributaries above Prairie City. The spawning and rearing areas are comparatively free of undesirable fish species, but salmonid smolts migrating downstream must travel...
Resource Type:: Technical Report
Full Text:: . Figure 6. Resident rainbow trout taken in John Day River sampling program. N ell OREGON STATE GAME

Shallow aquifer characteristics adjacent to the upper Middle Fork John Day River, eastern Oregon

Creator:: Hopson, Richard G.
Abstract:: Subsurface inputs into lotic systems are a primary mechanism for cooling streams with high ambient water temperatures. Objectives of this study include: 1) to determine the effectiveness of Forward Looking Infrared (FLIR) thermal imagery to detect shallow aquifers, 2) to characterize certain physical, spatial, and temporal characteristics of the fluvial,...
Resource Type:: Masters Thesis

Habitat improvement to enhance anadromous fish production [Clear Creek]

Creator:: West, Duane C., Reeher, James A., Jr., Hewkin, James A., and Oregon. State Game Commission. Fishery Division
Abstract:: Clear Creek, tributary of North Fork John Day River, is a mountain stream located in the Blue Mountains of eastern Oregon. It joins Granite Creek about 1.5 miles below the old abandoned mining town of Granite. Gravel removed from Clear Creek by gold dredging activity was replaced in a 3.37-mile...
Resource Type:: Technical Report
Full Text:: . Reeher, Jr., James A. Hewkin ABSTRACT Clear Creek, tributary of North Fork John Day River, is a

Habitat improvement to enhance anadromous fish production [Tex Creek]

Creator:: West, Duane C., Reeher, James A., Hewkin, James A., and Oregon. State Game Commission. Fishery Division
Abstract:: The project objectives were to determine the possibility of raising the subterranean water in adequate amounts by installation of an underground weir; to determine what type of structure would be most feasible; and to formulate a biological evaluation program if the first two objectives were accomplished. Tex Creek, tributary to...
Resource Type:: Technical Report
Full Text:: South Fork John Day River, was chosen as the study stream because of its history of steelhead use and

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

Creator:: Benner, David A.
Abstract:: Evaporation was studied along the Middle Fork of the John Day River in northeastern Oregon. Evaporation pans and various meteorological sensors recorded data at nine sites during the summer of 1998; measurements were made at each site over a 3-4 day period. A Dalton-type evaporation model was produced using water...
Resource Type:: Masters Thesis

The influence of sex, migration distance, and latitude on expression of anadromy in Oncorhynchus mykiss

Creator:: Ohms, Haley
Abstract:: The evolution and maintenance of multiple phenotypes within populations is an interesting evolutionary and ecological question, and is becoming increasingly important for the restoration and conservation of partially migratory species. In particular, why individuals adopt a particular phenotype has been the focus of numerous research efforts. In the partially migratory...
Resource Type:: Masters Thesis
Full Text:: resident rainbow trout and juvenile steelhead from the South Fork John Day River, eastern Oregon, from

Influences of riparian canopy on aquatic communities in high desert streams of eastern Oregon

Creator:: Tait, Cynthia K.
Abstract:: Because riparian canopy controls most energy inputs to stream ecosystems, it directly affects the structure of aquatic food webs and the ecological processes that govern interactions among trophic levels. This study addresses the interdependence among riparian canopy, benthic community structure, and the carrying capacity of high desert streams for salmonid...
Resource Type:: Dissertation
Full Text:: the lower John Day River Basin in eastern Oregon, algal, invertebrate, and fish communities were

The influence of climate change and restoration on stream temperature

Creator:: Diabat, Mousa
Abstract:: Water temperature is an essential property of a stream. Temperature regulates physical and biochemical processes in aquatic habitats. Various factors related to climatic conditions, landscape characteristics, and channel structure directly influence stream temperature. Numerous studies indicate that increased average air temperature during the past century has led to stream warming...
Resource Type:: Dissertation
Full Text:: simulate stream temperature for all three analyses along the Middle Fork John Day River, Oregon USA

Description and prediction of broad-scale spatial variability in expression of anadromy in female Oncorhynchus mykiss in the John Day River, Oregon, USA

Creator:: Mills, Justin S.
Abstract:: Partial migration is a common migratory behavior where some individuals in a population migrate and others do not. Patterns of partial migration can vary dramatically, especially for species that inhabit a wide range of environments. I described and predicted spatial variation in marine migration (anadromy) of female Oncorhynchus mykiss (steelhead...
Resource Type:: Masters Thesis
Full Text:: Female Oncorhynchus mykiss in the John Day River, Oregon, USA Abstract approved

ScholarsArchive@OSU

The Influence of Riparian Habitat and Microhabitat Selection on Fish Assemblaqe Structure in the Upper John Day Basin, Oreqon

Reduction of salmonid predators by chemical treatment

Shallow aquifer characteristics adjacent to the upper Middle Fork John Day River, eastern Oregon

Habitat improvement to enhance anadromous fish production [Clear Creek]

Habitat improvement to enhance anadromous fish production [Tex Creek]

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

The influence of sex, migration distance, and latitude on expression of anadromy in Oncorhynchus mykiss

Influences of riparian canopy on aquatic communities in high desert streams of eastern Oregon

The influence of climate change and restoration on stream temperature

Description and prediction of broad-scale spatial variability in expression of anadromy in female Oncorhynchus mykiss in the John Day River, Oregon, USA

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