Index Catalog // ScholarsArchive@OSU

Creator:: Tattam, Ian A., Ruzycki, James R., Li, Hiram W., and Giannico, Guillermo R.
Abstract:: Juvenile Oncorhynchus mykiss migrate extensively in freshwater during fall. We used individual tagging to study the spatial origin, influences, and outcomes of fall migration on fish that emigrated from summer rearing tributaries during fall (early-emigrants) and those that did not (late-emigrants) in the South Fork John Day River, Oregon. Fall...
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Full Text:: . 1988. Choice of feeding station in 416 Atlantic salmon, Salmo salar, parr: effects of predation

Creator:: Campbell, Lance A., Bottom, Daniel L., Volk, Eric C., and Fleming, Ian A.
Abstract:: Fish scales have long been used to reconstruct fine-scale habitat transitions such as the movement of juvenile fish from freshwater, estuary, and ocean environments. Despite the importance of life history information to fisheries management and conservation, few studies have validated that scale morphology accurately describes fish movement between these habitats....
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Full Text:: Histories Lance A. Campbell*1 Coastal Oregon Marine Experiment Station and Department of Fisheries and

Creator:: Fisher, J. P., Weitkamp, L. A., Teel, D. J., Hinton, S. A., Orsi, J. A., Farley, E. V., Jr., Morris, J. F. T., Thiess, M. E., Sweeting, R. M., and Trudel, M.
Abstract:: Several evolutionarily significant units (ESUs) of Columbia River basin Chinook Salmon Oncorhynchus tshawytscha and Coho Salmon O. kisutch are listed as threatened or endangered under the U.S. Endangered Species Act. Yet little is known about the spatial and temporal distributions of these ESUs immediately following ocean entry, when year-class success...
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Full Text:: Station, 520 Heceta Place, Hammond, Oregon 97121, USA J. A. Orsi and E. V. Farley Jr. National Oceanic

Creator:: Weitkamp, Laurie A.
Abstract:: The coded wire tag (CWT) database contains detailed information on millions of Pacific salmon Oncorhynchus spp. released from hatcheries or smolt traps and recovered in the north Pacific Ocean and its tributaries. I used this data set to examine the spatial and temporal variation in the marine distributions of 77...
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Full Text:: Station, 2032 Southeast Oregon State University Drive, Newport, Oregon, 97365, USA Available online: 09

Creator:: Eiler, John H., Masuda, Michele M., Spencer, Ted R., Driscoll, Richard J., and Schreck, Carl B.
Abstract:: Chinook Salmon Oncorhynchus tshawytscha returns to the Yukon River basin have declined dramatically since the late 1990s, and detailed information on the spawning distribution, stock structure, and stock timing is needed to better manage the run and facilitate conservation efforts. A total of 2,860 fish were radio-tagged in the lower...
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Full Text:: the transmitter, and the relative position of the fish (i.e., upriver or downriver from the station

Creator:: O’Malley, Kathleen G., Markle, Douglas F., and Ardren, William R.
Abstract:: We examined the distribution of Umpqua Chub Oregonichthys kalawatseti, an endemic, vulnerable minnow in western Oregon, and whether six ecological populations (based on distribution patterns) had sufficient genetic cohesion to be considered evolutionary populations. We also evaluated the influence of Holocene geological events and recent nonnative predator introductions on the...
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Full Text:: a , Douglas F. Markle b & William R. Ardren c a Coastal Oregon Marine Experiment Station, Hatfield

Creator:: Volk, Eric C., Bottom, Daniel L., Jones, Kim K., and Simenstad, Charles A.
Abstract:: We quantified the juvenile rearing and migratory patterns of individuals from a population of fall-spawning Chinook salmon Oncorhynchus tshawytscha in Oregon's Salmon River estuary using otolith microchemistry and microstructure. The study confirmed the daily periodicity of otolith growth increments in a natural fish population under field conditions and validated fundamental...
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Full Text:: trap and marking station was operated weekly from mid-March through mid or late July. Individuals

Creator:: Hostetter, Nathan J., Evans, Allen F., Roby, Daniel D., and Collis, Ken
Abstract:: Identification of the factors that influence susceptibility to predation can aid in developing management strategies to recover fish populations of conservation concern. Predator-prey relationships can be influenced by numerous factors, including prey condition, prey size, and environmental conditions. We investigated these factors by using juvenile steelhead Oncorhynchus mykiss from the...
Resource Type:: Article

Creator:: Roberts, James J., Brandt, Stephen B., Fanslow, David, Ludsin, Stuart A., Pothoven, Steven A., Scavia, Donald, and Höök, Tomas O.
Abstract:: As in various freshwater and coastal marine ecosystems worldwide, seasonal bottom water hypoxia is a recurring phenomenon in Lake Erie's central basin. While bottom hypoxia can strongly affect sessile benthic animals, its effects on mobile organisms such as fish are less understood. We evaluated the potential for bottom hypoxia to...
Resource Type:: Article
Full Text:: ’ Saline Fisheries Research Station. We obtained ju- venile (i.e., age 1) yellow perch (100–180 mm total

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