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Filtering by: Subject Aeromonas salmonicida -- Oregon -- Willamette River Watershed Advisor Gregory, Stanley V.

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Creator:

Sobota, Daniel J.

Abstract:

Land use alters the physical and biological structure of stream ecosystems and potentially alters their capacity to process nitrogen (N), an essential nutrient that has nearly doubled in abundance on the biosphere during the past century from human activities. In this dissertation, I quantified uptake and transformation of nitrate (NO₃⁻)...

Resource Type:

Dissertation

Full Text:

study reaches in the Willamette River basin, Oregon, USA………………………………………………………………..15
Comparisons of fish assemblages and habitat associations in littoral zones of reservoirs in the Willamette Basin, Oregon

Creator:

Bennett, Paul Michael

Abstract:

The littoral zones of seven reservoirs in the southern Willamette Valley of Oregon were sampled with a boat electroshocker during the summer months of 1995 and 1996. Shoreline substrates were inventoried before sampling sites were randomly selected. Sampling sites consisted of 9 of 12 possible habitat types including four substrate...

Resource Type:

Masters Thesis

Full Text:

Army Corps of Engineers (COE), Portland, Oregon District, in the Willamette River Basin of Oregon