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The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

Creator:: Wagner, Harry Henry
Abstract:: See pdf.
Resource Type:: Dissertation
Full Text:: photoperiod were migratory earlier than control fish regardless of the temperature cycle. Those receiving a

Social interaction between juvenile coho and fall chinook salmon in Sixes River, Oregon

Creator:: Stein, Roy A.
Abstract:: The nature of the interaction between juvenile coho salmon, Oncorhynchus kisutch (Walbaum), and fall chinook salmon, 0. tshawytscha (Walbaum), was studied in Sixes River, Oregon. Seining, snorkeling, and tagging were used to determine distribution and patterns of growth of these two species in the stream environment. Experiments conducted in flowing-water...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF ROY A. STEIN, Jr. for the MASTER

The winter distribution, movement, and smolt transformation of juvenile coho salmon in an Oregon coastal stream

Creator:: Rodgers, Jeffrey D.
Abstract:: The abundance of the 1982 brood of juvenile coho salmon (Oncorhynchus kisutch) was determined in August 1983, and January and April 1984 at 20 study sites spread throughout Knowles Creek, an Oregon coastal watershed. The timing of emigration of juvenile coho from the watershed was monitored from October 1983 through...
Resource Type:: Masters Thesis
Full Text:: Abstract approv Redacted for Privacy Dr. James all The abundance of the 1982 brood of juvenile coho salmon

Movements of spawning sockeye salmon in Hidden Creek, Brooks Lake, Alaska

Creator:: Tsunoda, Setsuwo
Abstract:: The movements of a population of adult sockeye salmon (Oncorhynchus nerka) were followed in a small tributary of Brooks Lake, Alaska until spawning was nearly complete in 1963. The objectives of the study were to describe the movements of sockeye salmon on the spawning ground of an entire small stream,...
Resource Type:: Masters Thesis
Full Text:: ) The movements of a population of adult sockeye salmon (Oncorhynchus nerka) were followed in a small

Predator-prey interactions under the influence of ammonia

Creator:: Woltering, Daniel Mark
Abstract:: Predator-prey interactions, as measured by the consumption and growth rates of a predator (Micropterus salmoides) and by the observed activities of both predator and prey (Gambusia affinis), were found to be sensitive to sublethal levels of ammonium chloride (reported as unionized ammonia NH₃). One bass and 15, 30, 60 or...
Resource Type:: Masters Thesis

The length of residence of juvenile Fall Chinook salmon in Sixes River, Oregon

Creator:: Reimers, Paul E.
Abstract:: This study was designed to provide life history information about juvenile fall Chinook salmon, Oncorhynchus tshawytscha (Walbaum), in a small coastal river by 1) documenting the length of residence of the juveniles throughout the river, 2) exploring several factors possibly influencing their length of residence, and 3) assessing the relative...
Resource Type:: Dissertation
Full Text:: chinook salmon, Oncorhynchus tshawytscha (Walbaum), in a small coastal river by 1) docutnenting the

Effects of logging on the spawning bed environment in two Oregon coastal streams

Creator:: Ringler, Neil Harrison
Abstract:: The effects of two patterns of logging on the intragravel environment were studied in three Oregon coastal streams between June 1968 and June 1969. The watershed of one stream (Needle Branch) had been clearcut, and that of a second stream (Deer Creek) cut in staggered settings in 1966. A third...
Resource Type:: Masters Thesis
Full Text:: one stream (Needle Branch) had been clearcut, and that of a second stream (Deer Creek) cut in

Evaluation of combining ability in mosquitofish

Creator:: Pongthana, Nuanmanee
Abstract:: Two replications of a half dial lei cross experiment were performed among four inbred lines of mosquitofish, Gambusia affinis. These inbred lines originated from three random-bred stocks: OR, TX and CD. The experiment was conducted as a completely randomized design. Experimental material consisted of parental lines and F₁ populations maintained...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy e-15r. ames E. Lannan Two replications of a half diallel cross experiment were per

An evaluation of the effectiveness of instream structures for steelhead trout rearing habitat in the Steamboat Creek basin.

Creator:: Fontaine, Barbara L.
Abstract:: Several types of instream structures were evaluated for their potential to provide rearing habitat and to increase reach carrying capacity for steelhead trout (Salmo gairdneri). Evaluation was conducted in each season over the course of 1 year. Blast pools created in bedrock glides increased the carrying capacity of stream reaches...
Resource Type:: Masters Thesis
Full Text:: . Abstract Appried James D. Hall Several types of instreaxn structures were evaluated for their potential

Biochemical and serological comparison of selected Vibrio spp. isolated from fish

Creator:: Pipoppinyo, Somsak
Abstract:: Nine isolates of bacteria recovered from fish dying at marine facilities were collected from different geographic areas. The strains included: an isolate from chinook salmon (Oncorhynchus tshawytscha) reared in net pens in New Zealand, an isolate from chum salmon (Oncorhynchus keta) held at a laboratory in Oregon, USA., and seven...
Resource Type:: Masters Thesis
Full Text:: ]) SEROLOGICAL COMPARISON OF SELECTED VIBRIO SPP. ISOLATED FROM FISH Abstract approved: I Dr. James R. Winton

ScholarsArchive@OSU

The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

Social interaction between juvenile coho and fall chinook salmon in Sixes River, Oregon

The winter distribution, movement, and smolt transformation of juvenile coho salmon in an Oregon coastal stream

Movements of spawning sockeye salmon in Hidden Creek, Brooks Lake, Alaska

Predator-prey interactions under the influence of ammonia

The length of residence of juvenile Fall Chinook salmon in Sixes River, Oregon

Effects of logging on the spawning bed environment in two Oregon coastal streams

Evaluation of combining ability in mosquitofish

An evaluation of the effectiveness of instream structures for steelhead trout rearing habitat in the Steamboat Creek basin.

Biochemical and serological comparison of selected Vibrio spp. isolated from fish

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