Index Catalog // ScholarsArchive@OSU

Influence of channel constraint on primary production, preiphyton biomass, and macroinvertebrate biomass in streams of the Oregon Coast Range

Creator:: Zucker, Steven J.
Abstract:: Differences in primary production and periphyton and macroinvertebrate biomass between pairs of constrained (valley floor width of less than twice the active channel width) and unconstrained reaches were investigated in Elk River and four tributaries in southwest Oregon. In August 1991, macroinvertebrates were sampled from individual cobbles, and rocks were...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Steven J. Zucker for the degree of Master of Science in Fisheries and Wildlife presented on

Seasonal movement patterns and habitat use of westslope cutthroat trout in two headwater tributary streams of the John Day River

Creator:: Starcevich, Steven J.
Abstract:: Radiotelemetry was used to study the seasonal movements and habitat use of adult westslope cutthroat trout Oncorhynchus clarki lewisi in Roberts Creek and Rail Creek, headwater tributaries of the John Day River, Oregon, from September 2000 to December 2001. The objectives were to (1) describe adult cutthroat trout life history...
Resource Type:: Masters Thesis
Full Text:: Steven J. Starcevich for the degree of Master of Science in Fisheries Science presented on December 1

Determination of molecular hydrocyanic acid in water and studies of the chemistry and toxicity to fish of the nickelocyanide complex

Creator:: Broderius, Steven J.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF STEVEN 3, BRODERIUS (Name) in

Determination of molecular hydrocyanic acid in water and studies of the chemistry and toxicity to fish of metal-cyanide complexes

Creator:: Broderius, Steven J.
Abstract:: A reliable, easy, and inexpensive method for determination of molecular hydrocyanic acid (HCN) in solutions of simple and complex metal cyanides is described. The method was used to determine molecular HCN concentrations as low as 0.005 milligram per liter, and can be used for determination of even lower levels. It...
Resource Type:: Dissertation

Effects of maternal age on reproductive success in black rockfish, Sebastes melanops

Creator:: Bobko, Stephen J.
Abstract:: From 1996 through 1998 I collected mature female black rockfish off Oregon and examined ovaries and otoliths to estimate weekly, age-specific larval production. In all reproductive seasons, older black rockfish extruded larvae earlier in the season, followed by progressively younger fish. Each year, beginning in May, I collected young-of-the-year (YOY)...
Resource Type:: Dissertation
Full Text:: , SEBASTES MELANOPS, OFF THE OREGON COAST Stephen J. Bobko and Steven A. Berkeley Department of Fisheries

A macroscopic to microscopic study of the effects of barotrauma and the potential for long-term survival in Pacific rockfish

Creator:: Pribyl, Alena L.
Abstract:: Depleted species of rockfish (Sebastes spp.) from the Northeast Pacific experience high discard mortality due to "barotrauma," induced from the rapid change in pressure during capture. Research suggests rockfish have the potential to survive barotrauma if immediately recompressed, but the potential for long-term recovery is unknown. In this project, we...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Carl. B. Schreck Steven J. Parker Depleted species of rockfish (Sebastes spp.) from

Recruitment variability in black rockfish (Sebastes melanops): effects of maternal age on offspring quality

Creator:: Chapman, Colin G.
Abstract:: Black rockfish (Sebastes melanops) is an important marine recreational species throughout the Pacific Northwest. Recent catch data indicate a trend of age-truncation in the black rockfish population off the Oregon coast, with older females rapidly disappearing from the population. In populations with broad age distributions, older fish may contribute disproportionately...
Resource Type:: Masters Thesis
Full Text:: Steven A. Berkeley Black rockfish (Sebastes melanops) is an important marine recreational species

Rearing conditions and their effects on growth, food conversion, and survival of English sole (Parophrys vetulus Girard)

Creator:: Williams, Steven Frank
Abstract:: This study consisted of determining some of the conditions for culture of young English sole (Parophrys vetulus Girard) in the laboratory. Rearing of the larvae to the juvenile stage was attempted unsuccessfully; techniques used and problems encountered during culture are discussed. Growth of juveniles was studied at combinations of temperatures...
Resource Type:: Dissertation
Full Text:: conversion, and survival of English sole (Parophrys vetulus Girard) AN ABSTRACT OF THE THESIS OF Steven

Chemodetection of threatening chemical stimuli by juvenile coho salmon (Oncorhynchus kisutch)

Creator:: Stone, Steven L.
Resource Type:: Masters Thesis
Full Text:: juvenile coho salmon (Oncorhynchus kisutch) AN ABSTRACT OF THE THESIS OF Steven L. Stone for the degree

Towards an Integrated Decision Tool for Managing Wildlife with Visitor Restrictions in Glacier Bay National Park

Creator:: Whitlock, Steven L.
Abstract:: The National Park Service has a dual mission of providing public access to exceptional natural resources, but in a manner such that these resources are left “unimpaired for the enjoyment of future generations.” Human activities in parks undoubtedly affect wildlife, but the degree to which such activities cause impairment is...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Steven L. Whitlock for the degree of Doctor of Philosophy in Fisheries

ScholarsArchive@OSU

Influence of channel constraint on primary production, preiphyton biomass, and macroinvertebrate biomass in streams of the Oregon Coast Range

Seasonal movement patterns and habitat use of westslope cutthroat trout in two headwater tributary streams of the John Day River

Determination of molecular hydrocyanic acid in water and studies of the chemistry and toxicity to fish of the nickelocyanide complex

Determination of molecular hydrocyanic acid in water and studies of the chemistry and toxicity to fish of metal-cyanide complexes

Effects of maternal age on reproductive success in black rockfish, Sebastes melanops

A macroscopic to microscopic study of the effects of barotrauma and the potential for long-term survival in Pacific rockfish

Recruitment variability in black rockfish (Sebastes melanops): effects of maternal age on offspring quality

Rearing conditions and their effects on growth, food conversion, and survival of English sole (Parophrys vetulus Girard)

Chemodetection of threatening chemical stimuli by juvenile coho salmon (Oncorhynchus kisutch)

Towards an Integrated Decision Tool for Managing Wildlife with Visitor Restrictions in Glacier Bay National Park

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