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The Impacts of Multiple Stressors on Aquatic Invertebrate Communities in the Umatilla River

Creator:: Clark, Hannah
Abstract:: Rivers impacted by human activities often have multiple stressors present. The effects of multiple stressors on biological communities can often be difficult to predict, due to the potential for complex interactions between stressors and communities. This thesis explores the impacts of two stressors often associated with agricultural land use, increased...
Resource Type:: Masters Thesis
Full Text:: use of living organisms or their responses to evaluate the quality or health of an aquatic

An Examination of Gender and Racial/Ethnic Social Identities in Marine, Aquatic, and Fisheries Sciences

Creator:: King, Brittany D.
Abstract:: Despite growing efforts to recruit individuals from diverse backgrounds, natural resources fields, including marine aquatic and fisheries science, do not reflect the diversity of the United States. This dissertation utilized three studies to explore underrepresentation in marine, aquatic, and fisheries sciences by examining career influences, experiences, and perspectives at different...
Resource Type:: Dissertation
Full Text:: of career interest and decisions in marine, aquatic, and fisheries sciences as well as how the

Effects of Stage 0 Stream Restoration on Aquatic Macroinvertebrate Production

Creator:: Jennings, Jeremy C.
Abstract:: Contemporary stream restoration efforts increasingly prioritize restoring natural stream processes to regain lost ecosystem functions. Stage 0 stream restoration resets disturbed, channelized streams to a theoretical pre-disturbance state (“stage zero”). It is assumed that this valley-scale restoration/disturbance will restore natural abiotic and biotic processes, leading to greater primary and secondary...
Resource Type:: Masters Thesis
Full Text:: : Effects of Stage 0 Stream Restoration on Aquatic Macroinvertebrate Production Abstract

Beyond the Benthos: The effects of stream restoration on habitat complexity and aquatic and riparian macroinvertebrate assemblages

Creator:: Lotz, Kelsey L.
Abstract:: Aquatic and riparian systems in the western United States have been highly modified by anthropogenic impacts since Euro-American settlement. Ecological restoration is a practice that has been widely conducted around the world to mitigate the degradation of these systems. The majority of stream restoration efforts have focused on improving in-stream...
Resource Type:: Masters Thesis
Full Text:: : The Effects of Stream Restoration on Habitat Complexity and Aquatic and Riparian Macroinvertebrate

Invertebrate composition and distribution in desert springs of Oregon

Creator:: Mauger, Susan
Abstract:: In the summers of 1998 and 1999, aquatic invertebrate and plant communities were sampled from nineteen springs in the Warner Basin of southeastern Oregon. Across the landscape, these springs exhibited a broad range in water temperature (5-24°C), pH, conductivity, elevation, and gradient. Within a particular spring, water temperature and chemistry...
Resource Type:: Masters Thesis
Full Text:: Of Oregon. Abstract approved Judith L. Li In the summers of 1998 and 1999, aquatic invertebrate

Regions to streams : spatial and temporal variation in stream occupancy patterns of coho salmon (Oncorhynchus kisutch) on the Oregon coast

Creator:: Flitcroft, Rebecca L.
Abstract:: Aquatic ecological investigation is expanding to encompass considerations of multiple scales across large landscapes. Much of the analysis included in this work focuses specifically on coho salmon (Oncorhynchus kisutch) in multiple subbasins on the Oregon coast. Coho salmon were chosen for an investigation of spatial scales, network connections, and life...
Resource Type:: Dissertation
Full Text:: from spatially continuous replicate surveys. Canadian Journal of Fisheries and Aquatic Sciences 63(2

How the animals found their places : pattern detection, experimentation, and epistemology in a high desert stream fish assemblage

Creator:: White, Seth Michael
Abstract:: I examined the relative roles of biotic and abiotic factors in structuring redband trout Oncorhynchus mykiss distributions in the South Fork John Day. I first examined the relationship between the biological traits of the fish assemblage and riparian-geomorphic features in context of prevailing theories of stream ecology stemming from the...
Resource Type:: Dissertation
Full Text:: , and C. E. Cushing. 1980. The river continuum concept. Canadian Journal of Fisheries and Aquatic

Reconnecting aquatic habitats : validating historical habitat use by anadromous fishes using telemetry and stable isotope analysis above barriers

Creator:: Lewis, Sierra Koch
Abstract:: I conducted a study to identify potential spawning habitat for anadromous salmonids above a 60-year-old hydropower dam in the headwaters of the North Umpqua River in Oregon. Like many other historical salmonid-bearing rivers, little documentation exists for anadromous fish presence above potential natural obstacles upstream of Soda Springs Dam. My...
Resource Type:: Masters Thesis
Full Text:: practice is less common now due to growing respect for natural partitions of aquatic communities. This

Seasonal dynamics of a riparian food web in the Oregon Coast Range mountains

Creator:: Robillard, Amanda Lynn
Abstract:: Riparian areas are eco-tones where aquatically- and terrestrially-derived insect biomass is exchanged between habitats, presenting consumers with new sources of energy, and resulting in a reciprocal subsidy. The relative contribution of energy exchange and the resulting impacts on vertebrate riparian consumers, such as fish or birds, remains poorly understood. We...
Resource Type:: Masters Thesis
Full Text:: biomass of terrestrial and aquatic insects available to riparian consumers. Spring provided the most

Evaluation of length distributions and growth variance to improve assessment of the loggerhead sea turtle, (Caretta caretta)

Creator:: Vaughan, Jason R.
Abstract:: Nest counts from the largest subpopulation of the loggerhead sea turtle (Caretta caretta) in the Atlantic, peninsular Florida, have been declining since 1998. Analyzing trends of nests and adult females is insufficient to determine the overall status of a sea turtle population, due to variation in nesting frequency and a...
Resource Type:: Masters Thesis
Full Text:: , including the Gulf of Mexico and the U.S. Caribbean (Schroeder 1989, Shaver and Teas 1999). Each animal

ScholarsArchive@OSU

The Impacts of Multiple Stressors on Aquatic Invertebrate Communities in the Umatilla River

An Examination of Gender and Racial/Ethnic Social Identities in Marine, Aquatic, and Fisheries Sciences

Effects of Stage 0 Stream Restoration on Aquatic Macroinvertebrate Production

Beyond the Benthos: The effects of stream restoration on habitat complexity and aquatic and riparian macroinvertebrate assemblages

Invertebrate composition and distribution in desert springs of Oregon

Regions to streams : spatial and temporal variation in stream occupancy patterns of coho salmon (Oncorhynchus kisutch) on the Oregon coast

How the animals found their places : pattern detection, experimentation, and epistemology in a high desert stream fish assemblage

Reconnecting aquatic habitats : validating historical habitat use by anadromous fishes using telemetry and stable isotope analysis above barriers

Seasonal dynamics of a riparian food web in the Oregon Coast Range mountains

Evaluation of length distributions and growth variance to improve assessment of the loggerhead sea turtle, (Caretta caretta)

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