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Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Creator:: Beaty, Roy E.
Abstract:: The average size and age of chinook salmon (Oncorhynchus tshawytscha) caught in commercial fisheries along the Pacific Coast of North America have decreased substantially in this century. These declines might be caused in part by changes in size and age at maturity within the stocks contributing to those fisheries. Upriver...
Resource Type:: Masters Thesis
Full Text:: 270 CHANGES IN SIZE AND AGE AT MATURITY OF COLUMBIA RIVER UPRIVER BRIGHT FALL CHINOOK SALMON

Year-class regulation of mid-upper Columbia River spring Chinook salmon Oncorhynchus tshawytscha : the role of juvenile size, growth, and migratory behavior

Creator:: Tomaro, Londi M.
Abstract:: Early ocean residence is assumed to be a critical period for juvenile Pacific salmon Oncorhynchus spp. However, the specific mechanisms influencing growth and survival in the ocean have not been identified for most populations. Therefore, three hypotheses regarding the relationship between early marine residence and subsequent survival of mid-upper Columbia...
Resource Type:: Masters Thesis
Full Text:: Mid-upper Columbia River Spring Chinook Salmon Oncorhynchus tshawytscha: The Role of Juvenile Size

An application of the control chart method to the analysis of fisheries data

Creator:: Rich, Willis H. (Willis Horton), 1885-1972 and Oregon. Fish Commission
Abstract:: In a paper now in press as a Bulletin of the U. S. Fish and Wildlife Services the writer has discussed the downward trend of the catch of Columbia River Chinook salmon since 1920 and has stated that the decline is doubtless an indication that the runs of this species...
Resource Type:: Technical Report
Full Text:: Services the writer has discussed the downward trend of the catch of Columbia River Chinook salmon since

Redd site selection and spawning habitat use by fall chinook salmon

Creator:: Geist, David R.
Abstract:: The spawning habitat associated with fall chinook salmon (Oncorhynchus tshawytscha) redd clusters was investigated in the Hanford Reach of the Columbia River. A conceptual spawning habitat model is proposed that describes how geomorphic features of river channels create hydraulic processes, including hyporheic flows, that influence where salmon spawn in unconstrained...
Resource Type:: Dissertation
Full Text:: Reach of the Columbia River showing several typical fall chinook salmon (Oncorhynchus tshawytscha

Seasonal variations in weight of Columbia River chinook salmon

Creator:: Rich, Willis H. (Willis Horton), 1885-1972 and Oregon. Fish Commission
Abstract:: A study of the fishery problems raised by the construction of the Grand Coulee Dam on the upper Columbia River was done. Part of the study was to estimate the number of salmon taken in commercial fishery for the purpose of comparing this with the number counted as they passed...
Resource Type:: Technical Report
Full Text:: Contribution No. 5 Seasonal Variations in Weight of Columbia River Chinook Salmon by WILLIS H. RICH

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:: Chinook Salmon Tagged on the Columbia River at Bonneville Dam and Recovered at Celilo Falls in 1948

Cost-effectiveness analysis for endangered and threatened Snake River salmon recovery planning

Creator:: Garber-Yonts, Brian E
Abstract:: This thesis addresses the costs of implementation of the Endangered Species Act (ESA) in the particular case of Snake River chinook salmon. Unlike most previous listings under the act, restoration of Snake River salmon will have impacts on a very broad array of industries and user groups over a region...
Resource Type:: Masters Thesis
Full Text:: ) in the particular case of Snake River chinook salmon. Unlike most previous listings under the act

Connecting Tidal-fluvial Life Histories to Survival of McKenzie River Spring Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Rose, Gordon W.
Abstract:: Chinook salmon returns to the Columbia River basin have declined due to impacts of a growing human population, despite significant mitigation expenditures. Consequently, fisheries managers have become focused on recovery and long-term viability of at-risk populations. A viable population depends, in part, on the connectivity and quality of diverse habitat...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________________ Daniel L. Bottom Chinook salmon returns to the Columbia River basin have declined due

Life histories of juvenile chinook salmon in the Columbia River estuary : 1916 to the present

Creator:: Burke, Jennifer L.
Abstract:: Pacific Coast estuaries provide important rearing habitats leading to improved growth and survival for juvenile chinook salmon. However, research has suggested that juvenile salmon have little use for estuarine habitats in the Columbia River. To further understand salmonid recovery needs in estuaries, I compared historical and contemporary life history patterns...
Resource Type:: Masters Thesis
Full Text:: on August 3, 2004. Title: Life Histories of Juvenile Chinook Salmon in the Columbia River Estuary

A comparison of early marine residence in hatchery and natural Chinook salmon (Oncorhynchus tshawytscha)

Creator:: Claiborne, Andrew M.
Abstract:: The mechanisms of mortality during critical life stages of fish are not well-understood and, for many species, it is not clear if the mechanisms are similar for naturally and artificially propagated individuals. For Chinook salmon (Oncorhynchus tshawytscha), natural fish potentially face negative interactions, such as competition, and survival disadvantages, such...
Resource Type:: Masters Thesis
Full Text:: ), percent marked (% Marked), and sample size (n) of upper Columbia River summer and fall Chinook salmon

ScholarsArchive@OSU

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Year-class regulation of mid-upper Columbia River spring Chinook salmon Oncorhynchus tshawytscha : the role of juvenile size, growth, and migratory behavior

An application of the control chart method to the analysis of fisheries data

Redd site selection and spawning habitat use by fall chinook salmon

Seasonal variations in weight of Columbia River chinook salmon

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

Cost-effectiveness analysis for endangered and threatened Snake River salmon recovery planning

Connecting Tidal-fluvial Life Histories to Survival of McKenzie River Spring Chinook Salmon (Oncorhynchus tshawytscha)

Life histories of juvenile chinook salmon in the Columbia River estuary : 1916 to the present

A comparison of early marine residence in hatchery and natural Chinook salmon (Oncorhynchus tshawytscha)

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