Index Catalog // ScholarsArchive@OSU

Surface Water and Groundwater Interactions in the Walla Walla River, Northeast Oregon, USA : A Multi-Method Field-Based Approach

Creator:: Gryczkowski, Landon
Abstract:: Surface water and groundwater interactions are a key component in the functioning of stream ecosystems. Exchange of water between the stream and the hyporheic zone creates habitat for aquatic organisms and serves as a control for stream biogeochemical, thermal, and flow processes. This study takes a multi-method field-based approach to...
Resource Type:: Dissertation
Full Text:: -km reach of the river north of Milton-Freewater, OR, USA (figures 1.2 and 1.3), which provides

Geographic variations in water quality and recreational use along the upper Wallowa River and selected tributaries

Creator:: McDowell, Theodore R.
Abstract:: Physical, chemical and bacterial water quality parameters of the upper Wallowa River were sampled periodically between July 2, 1978 and June 9, 1979 at nine stream and lake sampling sites. Water upstream from Wallowa Lake was typified by low nutrient concentrations ( generally below detectable limits except for nitrates), low....
Resource Type:: Dissertation
Full Text:: of the Wallowa River reveal that peak discharge generally occurs during June or early July (Figure 5

Ecology of Great Basin Canada goose broods in southcentral Washington

Creator:: Eberhardt, Lester E.
Abstract:: The ecology of female Great Basin Canada geese (Branta canadensis moffitti) and their broods was studied during the rearing seasons of 1983 and 1984 on the Columbia River in southcentral Washington. The movements and activities of 41 adult female geese, marked with radio-transmitters, and their broods were monitored. Adult female...
Resource Type:: Dissertation
Full Text:: Columbia River, there has been considerable discussion of damming, dredging, or channeling this section of

Salinity as a factor controlling the distribution of benthic estuarine diatoms

Creator:: Martin, John Varick
Abstract:: A two phase investigation was undertaken in an attempt to determine the effects of variations in salinity on the distribution of benthic estuarine diatoms. The estuary studied was that of the Yaquina River which originates in the Coast Range of western Oregon and discharges into the Pacific Ocean at the...
Resource Type:: Dissertation
Full Text:: the Yaquina River which originates in the Coast Range of western Oregon and dis charges into the

Managed artificial aquifer recharge and hydrological studies in the Walla Walla Basin to improve river and aquifer conditions

Creator:: Petrides Jiménez, Arístides Crisóstomos
Abstract:: This research project focuses on the Walla Walla River Basin located on the east side of the states of Oregon and Washington, USA. With the support and collaboration of the Walla Walla Basin Watershed Council, this work embraces four research topics. The first topic includes the feasibility study of artificial...
Resource Type:: Dissertation
Full Text:: from Nursery bridge to state line, the river runs low or dry in the summer because of upstream

Plankton and nutrient ecology of the Columbia River estuary

Creator:: Haertel, Lois Steben
Abstract:: Monthly samples of nutrients, phytoplankton and zooplankton were taken in the Columbia River estuary over a period of 16 months in order to determine distribution with season and salinity, and interrelationships between plankton and nutrients. Nitrate and phosphate levels in the river water entering the estuary are high in the...
Resource Type:: Dissertation
Full Text:: or Columbia River water. That the process is more complicated than that off Yaquina Bay is mdi

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:: Suzuki, Yasuko
Abstract:: Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
Resource Type:: Dissertation
Full Text:: Science presented on January 13, 2012. Title: Piscivorous Colonial Waterbirds in the Columbia River

Primary biomass and production processes in the Columbia River estuary

Creator:: Lara-Lara, Ruben
Resource Type:: Dissertation
Full Text:: 45. Freshwater phytoplanktori-salinity encounter conceptual 128 model during low river discharge or

From continua to patches : longitudinal patterns in the Middle Fork of the John Day River, Oregon

Creator:: Wright, Kristopher Keith
Abstract:: The Middle Fork John Day River is composed of low gradient, alluvial valley segments separated by constrained, canyon-like reaches, and has a history of multiple land-uses. These factors can alter the physical and biological structure of streams, and disrupt the longitudinal river continuum. I examined habitat, fish, macroinvertebrates, and primary...
Resource Type:: Dissertation
Full Text:: Patches: Longitudinal Patterns in the Middle Fork of the John Day River, Oregon. Abstract Approved

The development and analysis of future agricultural landscapes

Creator:: Berger, Patricia A.
Abstract:: Alternative futures studies provide a way for policy-makers and stakeholders to investigate the future impacts of different management strategies by providing representations of possible outcomes. An alternative futures study was undertaken by the Pacific Northwest-Ecosystem Research Consortium for the Willamette River Basin, Oregon, USA, to determine how this regional system...
Resource Type:: Dissertation
Full Text:: study was undertaken by the Pacific Northwest-Ecosystem Research Consortium for the Willamette River

ScholarsArchive@OSU

Surface Water and Groundwater Interactions in the Walla Walla River, Northeast Oregon, USA : A Multi-Method Field-Based Approach

Geographic variations in water quality and recreational use along the upper Wallowa River and selected tributaries

Ecology of Great Basin Canada goose broods in southcentral Washington

Salinity as a factor controlling the distribution of benthic estuarine diatoms

Managed artificial aquifer recharge and hydrological studies in the Walla Walla Basin to improve river and aquifer conditions

Plankton and nutrient ecology of the Columbia River estuary

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Primary biomass and production processes in the Columbia River estuary

From continua to patches : longitudinal patterns in the Middle Fork of the John Day River, Oregon

The development and analysis of future agricultural landscapes

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