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Submersible observations of deep-reef fishes of Heceta Bank, Oregon

Creator:: Pearcy, William G., Stein, David L., Hixon, Mark Anthony, Pikitch, Ellen K., Barss, William H., and Starr, Richard M.
Abstract:: Rockfishes, Sebastes spp.. were the most numerous and speciose fishes seen during 16 submersible dives from 64 to 305 m depth in the vicinity of Heceta Bank off the coast of Oregon. Dense schools of juvenile rockfishes and large yellowtail rockfish, S. flavidus, were observed only over rocky, high relief...
Resource Type:: Article
Full Text:: , Oregon Department of Fish and Wildlife, Hatfield Marine Science Center, Newport, OR 97365. Manuscript

Purine deposition in the skin of juvenile coho salmon, Oncorhynchus kisutch

Creator:: Staley, Kathryn Boyer
Abstract:: This study was undertaken to quantitatively evaluate the relationship between silvering of the skin of juvenile coho salmon, due to the deposition of the purines guanine and hypoxanthine, and adaptation to seawater. It was hypothesized that maximum purine deposition occurs at the time these fish normally enter seawater, that the...
Resource Type:: Masters Thesis
Full Text:: tanks supplied with running well-water. Fish were fed Oregon Moist Pellets (OMP) at approximately 2

Diverse consumer guilds in intertidal communities of Oregon and the Republic of Panama and their effects on prey assemblages

Creator:: Gaines, Steven D.
Abstract:: Low intertidal communities of Oregon and Panama have many predator and herbivore species. This diversity of consumers is important to the organization of both communities because of qualitative differences among the consumer species in their ability to circumvent specific prey defenses. In Oregon, the red alga Iridaea cordata is protected...
Resource Type:: Dissertation
Full Text:: Oregon and the Republic of Panama and Their Effects on Prey Assmblages Steven D. Gaines AN ABSTRACT OF

The role of avian predators in an Oregon rocky intertidal community

Creator:: Marsh, Christopher P.
Abstract:: Birds affected the community structure of an Oregon rocky shore by preying upon mussels (Mytilus spp.) and limpets (Collisella spp.). The impact of such predation is potentially great, as mussels are the competitively dominant mid-intertidal space-occupiers, and limpets are important herbivores in this community. Prey selection by birds reflects differences...
Resource Type:: Dissertation
Full Text:: The role of avian predators in an Oregon rocky

Population and community ecology of the red alga Rhodomela larix (Turner) C. Agardh, on the central Oregon coast

Creator:: D'Antonio, Carla Marie, 1956-
Abstract:: Aspects of the life history and ecology of the intertidal turf-forming alga Rhodomela larix (Turner) C. Agardh were examined over a two year period at several sites on the Oregon coast. Rhodomela occurred over a broad tidal range and exhibited different growth and morphology characteristics with respect to tidal height....
Resource Type:: Masters Thesis
Full Text:: larix (Turner) C. Agardh, on the central Oregon coast AN ABSTRACT OF THE THESIS OF Carla M. D'Antonio

Succession and stability in two rocky intertidal communities on the central Oregon coast

Creator:: Farrell, Terence M.
Abstract:: The stability of a limpet-dominated community was assessed in a experiment in which an consumer was temporarily removed. Compared to unmanipulated plots, the limpet-exclusion plots developed greater algal abundance and altered species composition of both algae and barnacles. The community was not perturbed beyond its capacity to recover, since the...
Resource Type:: Dissertation
Full Text:: communities on the central Oregon coast AN ABSTRACT OF THE THESIS OF Terence M. Farrell for the degree of

Blood calcium and phosphorus perturbations in rainbow trout (Salmo gairdneri) and coho salmon (Oncorhynchus kisutch) : some correlates of physiological stress

Creator:: Adams, Brett Alan
Abstract:: Changes in blood calcium and phosphorus concentrations were characterized for rainbow trout (Salmo gairdneri) and coho salmon (Oncorhynchus kisutch) following intense exercise or exposure to suspended volcanic ash or topsoil. Significant elevations in blood calcium and phosphorus accompanied exercise-induced acidemia in both S. qairdneri and O. kisutch. These elevations persisted...
Resource Type:: Masters Thesis
Full Text:: Ewing and Rick Birkes of the Oregon Department of Fish and Wildlife in supplying the salmonids used in

Comparative studies of the population ecology and life history patterns of an alkaline salt lake insect : Ephydra (Hydropyrus) hians Say (Diptera:Ephydridae)

Creator:: Herbst, David B.
Abstract:: Seasonal abundance and life history traits were compared between populations of the brine fly Ephydra (Hydrokyrus) hians Say (Diptera:Ephydridae), from two western Great Basin alkaline salt lakes. Abert Lake, Oregon, has a relatively low salinity (20-30 g/1 total dissolved solids) and more co-inhabitant benthic species than the higher salinity Mono...
Resource Type:: Dissertation
Full Text:: States Fish and Wildlife Service, Sigma Xi, The American Museum of Natural History, the Oregon State

Neural regulation of immunity in teleosts

Creator:: Flory, Craig M.
Abstract:: It has long been observed that stress can increase our susceptibility to infectious diseases and cancers. Recent experimental evidence suggests that this increased susceptibility is due to suppression of immunity. A variety of neuroendocrine products are released during periods of stress, and a large number of these are now known...
Resource Type:: Dissertation
Full Text:: cells in the spleens of subsequently immunized fish. 6 -OHDA treatment did not influence plasma

Bacterial clearance in the sea urchin, Strongylocentrotus purpuratus

Creator:: Yui, Mary A.
Abstract:: Characteristics of bacterial clearance were investigated in the purple sea urchin, Strongylocentrotus purpuratus (Echinodermata: Echinoidea). Primary clearance kinetics were determined for three bacteria, a marine Gram negative motile rod, a marine Gram positive non-motile rod, and a fresh water fish pathogen, Aeromonas salmonicida. Various doses of live bacteria were injected...
Resource Type:: Masters Thesis
Full Text:: negative motile rod, a marine Gram positive non- motile rod, and a fresh water fish pathogen, Aeromonas

ScholarsArchive@OSU

Submersible observations of deep-reef fishes of Heceta Bank, Oregon

Purine deposition in the skin of juvenile coho salmon, Oncorhynchus kisutch

Diverse consumer guilds in intertidal communities of Oregon and the Republic of Panama and their effects on prey assemblages

The role of avian predators in an Oregon rocky intertidal community

Population and community ecology of the red alga Rhodomela larix (Turner) C. Agardh, on the central Oregon coast

Succession and stability in two rocky intertidal communities on the central Oregon coast

Blood calcium and phosphorus perturbations in rainbow trout (Salmo gairdneri) and coho salmon (Oncorhynchus kisutch) : some correlates of physiological stress

Comparative studies of the population ecology and life history patterns of an alkaline salt lake insect : Ephydra (Hydropyrus) hians Say (Diptera:Ephydridae)

Neural regulation of immunity in teleosts

Bacterial clearance in the sea urchin, Strongylocentrotus purpuratus

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