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Contribution of subyearling estuarine migrant coho salmon (Oncorhynchus kisutch) to spawning populations on the southern Oregon coast

Creator:: Nordholm, Katherine E.
Abstract:: The typical coho salmon life history has been characterized by juvenile fish that spend their entire first year in freshwater habitats before migrating into estuaries as smolts. However, reports of early migrating coho fry (age 0), including migration downstream to estuarine habitats, date back to the 1960s. Until a few...
Resource Type:: Masters Thesis
Full Text:: Estuarine Migrant Coho Salmon (Oncorhynchus kisutch) to Spawning Populations on the Southern Oregon

Breeding site selection by coho salmon (Oncorhynchus kisutch) in relation to large wood additions and factors that drive reproductive success

Creator:: Clark, Steven
Abstract:: The fitness of female Pacific salmon (Oncorhynchus spp.) with respect to breeding behavior can be partitioned into at least four components: survival to reproduction, competition for breeding sites, success of egg incubation, and suitability of the local environment near breeding sites for early rearing of juveniles. Accordingly, breeding sites should...
Resource Type:: Masters Thesis
Full Text:: salmon breeding sites within the study reach .. 60 A.3. Raw data collected in Little Wolf Creek, Oregon

Effects of kokanee (Oncorhynchus nerka) redd superimposition on bull trout (Salvelinus confluentus) reproductive success in the Deschutes River Basin, Oregon.

Creator:: Weeber, Matthew A.
Abstract:: Oregon's only remaining non-reservoir population of adfluvial bull trout (Salvelinus confluentus) is found in Odell Lake, in the headwaters of the Deschutes River. The population size is unknown, but appears to be quite small. Limited spawning and rearing habitats, combined with the effects of introduced species and other anthropogenic changes...
Resource Type:: Masters Thesis
Full Text:: All stream spawning salmonids (i.e., salmon, trout, and charr) construct nests to deposit their eggs

Spawning chinook salmon (Oncorhynchus tshawytscha) two years in a row : reconditioning for repeated gamete collection

Creator:: Mayer, Kent Corey
Abstract:: Spring chinook salmon, Oncorhynchus tshawytscha, in the Snake River Basin are listed as endangered under the Endangered Species Act. The typical life history of spring chinook salmon is semelparous. An experiment was performed to see if mature male spring chinook salmon parr could be reconditioned after hand-spawning and spawned in...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Fisheries Science presented on April 16. 2QQ2. Title: Spawning Chinook Salmon

Distribution of Pacific herring spawn in Yaquina Bay, Oregon, and observations on mortality through hatching

Creator:: Steinfeld, James David
Abstract:: Studies were conducted during late winter and spring of 1970 to establish the extent of spawning of Pacific herring (Clupea harengus pallasi Valenciennes) in the Yaquina estuary, and to define the degree of egg mortality on certain substrates. Routine surveillance of the north shore of the estuary provided information on...
Resource Type:: Masters Thesis
Full Text:: 20 25 30 12 February and March. A fifth, minor spawning was observed on March 14 near the Oregon

Variation in the timing of coho salmon (Oncorhynchus kisutch) migration and spawning relative to river discharge and temperature

Creator:: LovellFord, Rachel M.
Abstract:: Coho salmon (Oncorhynchus kisutch) migration and spawning are unique components of the salmon life cycle because they require synchrony of behavior with other individuals as well as with acceptable fluvial conditions. As with other organisms that exhibit group mating behavior, it is likely that environmental cues trigger coho salmon movement...
Resource Type:: Masters Thesis
Full Text:: Salmon (Oncorhynchus kisutch) Migration and Spawning Relative to River Discharge and Temperature

The influence of fall-spawning salmon on growth and production of juvenile coho salmon rearing in beaver ponds on the Copper River Delta, Alaska

Creator:: Lang, Dirk W.
Abstract:: This thesis examined the influence of fall-spawning coho salmon on the density, growth rate, body condition, and survival to outmigration of juvenile coho salmon rearing in beaver ponds on the Copper River Delta, Alaska. During the fall of 1999 and 2000 fish rearing in ponds that received spawning salmon were...
Resource Type:: Masters Thesis
Full Text:: rearing in ponds that received spawning salmon were compared to ponds that did not receive spawners, and

Efficiency in Oregon's commercial salmon fisheries : a historical perspective

Creator:: Hatley, Thomas Alfred
Abstract:: Historic changes that have taken place on Oregon's commercial salmon fisheries are described in terms of their effects on the efficiency of fishermen. This historical analysis provides a background for comparative efficiency studies of Columbia River gillnetters and ocean trollers with the objective of determining which harvester group was more...
Resource Type:: Masters Thesis
Full Text:: impassable Grand Coulee Dam on the upper Columbia in 1938, 1140 miles of salmon spawning grounds were

The survival of coho salmon (Oncorhynchus kisutch) from egg deposition to emergence in three Oregon coastal streams

Creator:: Koski, K. Victor
Resource Type:: Masters Thesis

Growth, residence, and movement of juvenile Chinook salmon within restored and reference estuarine marsh channels in Salmon River, Oregon

Creator:: Hering, David K.
Abstract:: Tidal wetland channels provide rearing habitat for juvenile Chinook salmon as they emigrate from freshwater habitat and prepare to enter the ocean. Widespread diking and drainage of estuarine marshes for agricultural and urban development may have contributed to a decline in salmon abundance in the Pacific Northwest, prompting efforts to...
Resource Type:: Masters Thesis
Full Text:: Restored and Reference Estuarine Marsh Channels in Salmon River, Oregon. Abstract approved

ScholarsArchive@OSU

Contribution of subyearling estuarine migrant coho salmon (Oncorhynchus kisutch) to spawning populations on the southern Oregon coast

Breeding site selection by coho salmon (Oncorhynchus kisutch) in relation to large wood additions and factors that drive reproductive success

Effects of kokanee (Oncorhynchus nerka) redd superimposition on bull trout (Salvelinus confluentus) reproductive success in the Deschutes River Basin, Oregon.

Spawning chinook salmon (Oncorhynchus tshawytscha) two years in a row : reconditioning for repeated gamete collection

Distribution of Pacific herring spawn in Yaquina Bay, Oregon, and observations on mortality through hatching

Variation in the timing of coho salmon (Oncorhynchus kisutch) migration and spawning relative to river discharge and temperature

The influence of fall-spawning salmon on growth and production of juvenile coho salmon rearing in beaver ponds on the Copper River Delta, Alaska

Efficiency in Oregon's commercial salmon fisheries : a historical perspective

The survival of coho salmon (Oncorhynchus kisutch) from egg deposition to emergence in three Oregon coastal streams

Growth, residence, and movement of juvenile Chinook salmon within restored and reference estuarine marsh channels in Salmon River, Oregon

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