Index Catalog // ScholarsArchive@OSU

Aspects of the early life history of juvenile salmonids in the Dungeness River Estuary

Creator:: Sather, Nichole K.
Abstract:: The decline of many Pacific salmon stocks has stimulated interest in the early life history and habitat requirements of juvenile salmon. Although estuarine habitat associations of juvenile salmon have been investigated in many coastal areas of the eastern Pacific Ocean, until recently, little was known about juvenile salmonid ecology within...
Resource Type:: Masters Thesis
Full Text:: collection for this project. As student interns, L. McCalester, L.Muth, and E. Hersh provided

Habitat use, movement, and life history variation of coastal cutthroat trout, Oncorhynchus clarkii clarkii, in the Salmon River estuary, Oregon

Creator:: Krentz, Lisa K.
Abstract:: Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii may be highly dependent on estuaries, passing through them multiple times during their lifetime. However, few studies have investigated estuarine use by coastal cutthroat trout and it is often thought that estuaries serve primarily as migration corridors rather than rearing areas. We used...
Resource Type:: Masters Thesis
Full Text:: and their relatives. Oxford University Press. New York. Fresh, K.L., E. Casillas, L. Johnson, and

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
Full Text:: to 8 weeks 13 later (Wydoski and Whitney, 1979). The remaining species (except the mountain

Herbivory by a north temperate stream fish, Acrocheilus alutaceus (Agassiz & Pickering)

Creator:: Lassuy, Dennis R.
Abstract:: Documentation of the seasonal feeding habits and ability to assimilate algae are presented for the first time for a North American grazing stream fish. The chiselmouth, Acrocheilus alutaceus, begins feeding on algal matter in early spring and has deposited large fat reserves prior to an early summer spawning season. A...
Resource Type:: Dissertation
Full Text:: all of the many friends who have shared my journey (among them, Steven L Stone, Cam & Terri Sharpe

Seasonal distribution and habitat selection by the redside shiner, Richardsonius balteatus, in a small Oregon stream

Creator:: Rodnick, Kenneth J.
Abstract:: Seasonal habitat availability, utilization, and selection by young of the year (< 25 mm) and adult (>25 mm) redside shiner, Richardsonius balteatus, were studied for 1 year in sections of Greasy Creek, Benton County, Oregon. Intensive stream mapping procedures and snorkling observations provided most of the quantitative measures for habitat...
Resource Type:: Masters Thesis
Full Text:: Columbia (Scott and Crossman 1973, Wydoski and Whitney 1979). Because it occupies large lakes, small ponds

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:: , Judith L. Li, Gary A. Lamberti, Todd N. Pearsons, and Hiram W. Li Published in Journal of the North

Effects of acute stress and tagging on the swimming performance and physiology of Pacific lampreys (Lampetra tridentata)

Creator:: Close, David A.
Abstract:: Pacific lampreys (Lampetra tridentata) have declined in abundance in the Columbia River Basin. Although, the reasons for the decline are unclear, we suggest that development of hydroelectric dams and habitat alterations in tributaries as the main causes. The available knowledge of life history of Pacific lampreys and status from dam...
Resource Type:: Masters Thesis

Seasonal life history of Oncorhynchus mykiss in the South Fork John Day River Basin, Oregon

Creator:: Tattam, Ian A.
Abstract:: Understanding seasonal changes in growth, survival, and movement rates is crucial to salmonid management. These life history characteristics provide a context for evaluation of management actions. We evaluated the life history of individually marked Oncorhynchus mykiss gairdneri in the South Fork John Day River basin in Northeastern Oregon. This thesis...
Resource Type:: Masters Thesis

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

ScholarsArchive@OSU

Aspects of the early life history of juvenile salmonids in the Dungeness River Estuary

Habitat use, movement, and life history variation of coastal cutthroat trout, Oncorhynchus clarkii clarkii, in the Salmon River estuary, Oregon

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

Herbivory by a north temperate stream fish, Acrocheilus alutaceus (Agassiz & Pickering)

Seasonal distribution and habitat selection by the redside shiner, Richardsonius balteatus, in a small Oregon stream

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

Effects of acute stress and tagging on the swimming performance and physiology of Pacific lampreys (Lampetra tridentata)

Seasonal life history of Oncorhynchus mykiss in the South Fork John Day River Basin, Oregon

A geographical framework for assessing longitudinal patterns in stream habitat and fish distribution

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