Index Catalog // ScholarsArchive@OSU

Effects of primary treated and biologically stabilized kraft mill effluents on the production, biomass and growth rates of juvenile salmonids in three stream channels

Creator:: Borton, Dennis Leland
Resource Type:: Dissertation
Full Text:: taxonomic groups, and weighed. There was no effect on the production of salmonids when primary KME entered

Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

Creator:: Kizito, Fred
Abstract:: Water availability is a critical limiting element in semi-arid ecosystem productivity and presents particular challenges in Sahelian countries such as Senegal. The landscapes are characterized by the presence of two common semi-arid shrubs (Piliostigma reticulatum and Guiera senegalensis), both of which may be important hydraulic regulators in these water-limited ecosystems....
Resource Type:: Dissertation
Full Text:: efficiency (Kizito et al., 2005). The impact of shrubs on the overall water balance and hydrology of agro

Seasonal floodplain wetlands as fish habitat in Oregon and Washington

Creator:: Baker, Cynthia F.
Abstract:: To begin to understand freshwater seasonal floodplain fish communities in the context of human alteration of the physical system, species introductions and wetland restoration efforts, I studied fish assemblages in fifteen seasonal floodplain wetlands within four geographic regions (coastal, upper Columbia River estuary, Puget Sound and eastern Oregon/Washington) in the...
Resource Type:: Dissertation
Full Text:: . Number of CW fish ingressing into LaCenter wetland (November 2005) and daily average water level

Regeneration aspects of three Mexican Pinus species : field and greenhouse studies

Creator:: Cornejo-Oviedo, Eladio Heriberto
Abstract:: In a field study, seedlings of Arizona pine (Pinus arizonica Engeim.), Apache pine (P. engelmannii Cam), and Durango pine (P. durangensis Mart.) were planted in an one open area and in canopy gaps of four forested sites of a pine-oak forest in the Sierra Madre Occidental in the state of...
Resource Type:: Dissertation

Heterogeneous thermal habitat for northeast Oregon stream fishes

Creator:: Ebersole, Joseph L.
Abstract:: Discrete coldwater patches within warm streams provide potential thermal refuge for coldwater fishes during periods of heat stress. This analysis focused on heterogeneity in stream water temperatures as influenced by local influx of cooler subsurface waters. Using field thermal probes and recording thermistors, we identified and characterized coldwater patches potentially...
Resource Type:: Dissertation
Full Text:: of heat stress. This analysis focused on heterogeneity in stream water temperatures as influenced by

Interaction and behavior of the redside shiner (Richardsonius balteatus) and the steelhead trout (Salmo gairdneri) in western Oregon : the influence of water temperature

Creator:: Reeves, Gordon H.
Abstract:: Water temperature influenced interactions between redside shiners and juvenile steelhead trout (≥1+) in the field and the laboratory. Distribution of the two species within various habitats was determined in three streams with different water temperature regimes. The range of habitats occupied by trout in allopatry at cool temperatures and at...
Resource Type:: Dissertation

Growth and reproductions of Oreochromis niloticus (L.) in tropical aquatic microcosms at fluctuating temperature regimes

Creator:: Rwangano, Félicien
Resource Type:: Dissertation
Full Text:: ponds). Proceedings of the World Symposium on Warm Water Pond Fish Culture. FAO Fish. Rep. No. 44(4

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation
Full Text:: . Title: The Effects of Irrigation Water Withdrawals on Macroinvertebrate Community Structure and Life

Impacts of instream flows on the Colorado River Delta, Mexico : spatial vegetation change analysis and opportunities for restoration

Creator:: Zamora-Arroyo, Jose Francisco
Abstract:: Until the 1930s, flows of the Colorado River maintained approximately 781,060 hectares of wetlands in its delta. These wetlands provided important feeding and nesting grounds for resident and migratory birds as well as spawning and protection habitat for many fish and other invertebrate species. However, the Delta's wetlands started to...
Resource Type:: Dissertation
Full Text:: allocation of Colorado River water through the 1944 Treaty on the Utilization of Waters of the Colorado

Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

Creator:: Boersma, Kate S.
Abstract:: Although it is generally assumed that the intensifying abiotic environment is the primary effect of drought on aquatic organisms, drought-induced top predator extinctions may be an important underlying mechanism. I used manipulative experiments to disentangle the impacts of drying and top predator extinctions on arid-land aquatic invertebrate communities. I then...
Resource Type:: Dissertation
Full Text:: generally assumed that the intensifying abiotic environment is the primary effect of drought on aquatic

ScholarsArchive@OSU

Effects of primary treated and biologically stabilized kraft mill effluents on the production, biomass and growth rates of juvenile salmonids in three stream channels

Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

Seasonal floodplain wetlands as fish habitat in Oregon and Washington

Regeneration aspects of three Mexican Pinus species : field and greenhouse studies

Heterogeneous thermal habitat for northeast Oregon stream fishes

Interaction and behavior of the redside shiner (Richardsonius balteatus) and the steelhead trout (Salmo gairdneri) in western Oregon : the influence of water temperature

Growth and reproductions of Oreochromis niloticus (L.) in tropical aquatic microcosms at fluctuating temperature regimes

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Impacts of instream flows on the Colorado River Delta, Mexico : spatial vegetation change analysis and opportunities for restoration

Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

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