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Fisheries statistics of Oregon, 1950-1953

Creator:: Smith, Harrison S.
Abstract:: Document includes fishery statistics for Oregon for the years 1950-1953.
Resource Type:: Technical Report
Full Text:: CI tin 0 in V0 ,,, ". P V. cA til Vo CD CO go r- .-. w 0 g co r- u-)-,-. 03 et; 4 C6. 4

Characterizing the Spread and Consequences of Mycoplasma ovipneumoniae on Bighorn Sheep (Ovis canadensis) in the Northern Basin and Range Ecosystem

Creator:: Spaan, Robert S.
Abstract:: North American bighorn sheep (Ovis canadensis) have experienced significant declines and population extirpations due to novel pathogens such as Mycoplasma ovipneumoniae. This disease continues to limit the population restoration of bighorn sheep. Therefore, understanding the demographic consequences of pathogen presence and the risk of contact between bighorn populations and potential...
Resource Type:: Dissertation
Full Text:: Press, Washington, D.C. Borremans, B., C. Faust, K. R. Manlove, S. H. Sokolow, and J. O. Lloyd-Smith

Ecology and Management of Brown Trout in Little Deschutes River

Creator:: Lorz, Harold W. and Oregon Wildlife Commission
Abstract:: Project F-82-R Final Report The results of a study to understand the ecological requirements of brown trout and determine the effects of water development and land use on fish populations in the Deschutes River. Abundance, distribution, survival, age, growth, fecundity, food, migrations and ecological relationships to other species were all...
Resource Type:: Technical Report
Full Text:: MANAGEMENT OF BROWN TROUT IN LITTLE DESCHUTES RIVER Harold W. Lorz Fishery Research Report Number 8

A measured delay in the migration of adult chinook salmon at Bonneville Dam on the Columbia River

Creator:: Schoning, Robert W., Johnson, Donald R., and Oregon. Fish Commission
Abstract:: A study was undertaken in the fall of 1948 by the Oregon Fish Commission to determine the possible presence and importance of a delay in the migration of adult chinook salmon (Oncorhynchus tshawytscha) at Bonneville Dam on the Columbia River. Approximately 650 chinook were captured, tagged, and released at the...
Resource Type:: Technical Report
Full Text:: at Bonneville Dam On The Columbia River Robert W. Schoning and Donald R. Johnson FISH COMMISSION

Vegetation of vernal pools and related ephemeral wetlands in the Gerber Block, Klamath Basin, Oregon, including searches for Orcuttia tenuis and Tuctoria greenei

Creator:: Björk, Curtis R.
Abstract:: The California vernal pool-endemic grasses Orcuttia tenuis and Tuctoria greenei, both listed under the U.S. Endangered Species Act, were recently found in Modoc County, California, a short distance south of the Oregon border. This prompted searches in suitable habitats in adjacent portions of the Klamath Basin in Oregon, in the...
Resource Type:: Technical Report
Full Text:: Information Center, Portland State University By Curtis R. Björk Stillinger Herbarium, University of Idaho

State-wide stream improvement, stream clearance segment [1965-1966]

Creator:: Kernan, G. J., Holderman, W. E., Guymon, R. D., and Oregon. State Game Commission. Fishery Division
Abstract:: The following projects were completed between July 1, 1965, and June 30, 1966, under the stream clearance segment of the State-wide Stream Improvement Program. The larger segments were initiated by requesting competitive bids with the contract for logjam removal awarded to the lowest acceptable bid. The smaller projects were undertaken...
Resource Type:: Technical Report
Full Text:: . Kernan W. E. Holderman R. D. Guymon Stream Clearance Segment Number 19 This page intentionally left

State-wide stream improvement, stream clearance segment [1964-1965]

Creator:: Howell, G. E., Holderman, W. E., Guymon, R. D., and Oregon. State Game Commission. Fishery Division
Abstract:: The following projects were accomplished between February 1, 1964 and June 30, 1965, under the stream clearance segment of State-wide Stream Improvement. The projects were accomplished by selecting contractors under the procedure of using sealed bids. Smaller projects were completed by Force Account. The heavy equipment used on each project...
Resource Type:: Technical Report
Full Text:: for Project F-70-D-1 Febtuary 1, 1964 - June 30, 1965 by G. E. Howell W. E. Holderman R. D. Guymon

Status of the European Green Crab, Carcinus maenas, in Oregon and Washington coastal estuaries in 2019

Creator:: Yamada, Sylvia Behrens, Schooler, Shon, Heller, Renee, Donaldson, Luke, Takacs, Graham T., Randall, Andrea, Buffington, Chelsey, and Akmajian, Adrianne
Abstract:: The European green crab (Carcinus maenas) has persisted in Oregon and Washington coastal estuaries since the late 1990s. After the arrival of a strong year class in 1998, significant recruitment to the populations occurred only in 2003, 2005, 2006, 2010, 2015, 2016, 2017, 2018 and 2019. Warm winter water temperatures,...
Resource Type:: Technical Report
Full Text:: For data on individual crabs see: Yamada, S. B., Schooler, S., Heller, R., Donaldson, L., Takacs

The Indian Dip Net Fishery at Celilo Falls on the Columbia River

Creator:: Schoning, Robert W., Merrell, Theodore R., Johnson, Donald R., and Oregon. Fish Commission
Abstract:: 1. The Indians at Celilo Falls catch an average of over 2,600,000 pounds of fish each year, in dip nets in a manner very much the same as used by their ancestors. 2. The bulk of the fish caught at Celilo Falls is from the upriver fall run of chinook...
Resource Type:: Technical Report
Full Text:: RIVER R. W. SCHONING, T. R. MERRELL, JR. and D. R. JOHNSON OREGON FISH COMMISSION Portland, Oregon

Assessing Mercury Levels, Health Metrics, and Immune Function in Non-stranded Male California and Steller Sea Lions in Oregon

Creator:: Rae, Samantha N.
Abstract:: California and Steller sea lions (Zalophus californianus, Eumetopias jubatus, respectively) are considered sentinel species because they have long life spans, are long-term coastal residents, feed at high trophic levels, and have large blubber stores that serve as depots for anthropogenic toxicants. There are few studies on sea lion health and...
Resource Type:: Masters Thesis
Full Text:: , to gain an understanding of the body condition of an individual (McLaren and Smith 1985

ScholarsArchive@OSU

Fisheries statistics of Oregon, 1950-1953

Characterizing the Spread and Consequences of Mycoplasma ovipneumoniae on Bighorn Sheep (Ovis canadensis) in the Northern Basin and Range Ecosystem

Ecology and Management of Brown Trout in Little Deschutes River

A measured delay in the migration of adult chinook salmon at Bonneville Dam on the Columbia River

Vegetation of vernal pools and related ephemeral wetlands in the Gerber Block, Klamath Basin, Oregon, including searches for Orcuttia tenuis and Tuctoria greenei

State-wide stream improvement, stream clearance segment [1965-1966]

State-wide stream improvement, stream clearance segment [1964-1965]

Status of the European Green Crab, Carcinus maenas, in Oregon and Washington coastal estuaries in 2019

The Indian Dip Net Fishery at Celilo Falls on the Columbia River

Assessing Mercury Levels, Health Metrics, and Immune Function in Non-stranded Male California and Steller Sea Lions in Oregon

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