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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:: Oceanography and Department of Zoology, Oregon State University, Corvallis, OR 97331. E. K. Pikitch

Fish-habitat associations on a deep reef at the edge of the Oregon continental shelf

Creator:: Tissot, Brian N., Hixon, Mark Anthony, Barss, William, and Stein, David L.
Abstract:: Heceta Bank is a large reef on the edge of the central Oregon continental shelf that supports a wide variety of commercial fisheries. Using the research submersible Delta, we studied fish abundances on Heceta Bank and the relationship between species composition of fish assemblages and bottom types. Cluster analysis indicated...
Resource Type:: Article
Full Text:: Oceanography, Oregon State University, CoN allis, Oregon 97331-2914 Brian N. Tissot Department of Zoology

Comparison of submersible-survey and hydroacoustic-survey estimates of fish density on a rocky bank

Creator:: Starr, Richard M., Fox, David S., Hixon, Mark Anthony, Tissot, Brian N., Johnson, Gary E., and Barss, William H.
Abstract:: Submersible belt-transect surveys along a rocky bottom were combined with acoustic surveys of the water column to estimate depth distribution and density of fishes at Stonewall Bank, Oregon in the northeastern Pacific Ocean from September through October 1991. The objectives of the study were to determine the proportion of fish...
Resource Type:: Article
Full Text:: Department of Fish and Wildlife SE Marine Science Or, Newport, Oregon 97365 Mark A. Hixon Department 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

Multiple stressors and amphibian population declines

Creator:: Hatch, Audrey C.
Abstract:: In the past decade, declines in amphibian populations have captured scientific and popular interest. The causes of the declines are likely to be complex and involve interactions between several environmental stressors. Using multifactorial experiments, I investigated the combined effects of several anthropogenic stressors on developing amphibians in Oregon, USA. In...
Resource Type:: Dissertation
Full Text:: Museum of Natural History; and the Zoology department at Oregon State University. CONTRIBUTION OF

Immediate effects of acute stress on innate immunity in rainbow trout (Oncorhynchus mykiss)

Creator:: Demers, Nora Egan
Abstract:: This thesis tests the hypothesis that innate immunity may be enhanced immediately following a stressful event. The experiments characterize the acute effects of the fight or flight response on some immunological and endocrine parameters in rainbow trout (Oncorhynchus mykiss). Plasma cortisol and catecholamines were elevated within seconds of the initiation...
Resource Type:: Dissertation
Full Text:: of Dr. David Williams, Food Science Department, Oregon State University, were instrumental in

Some hemiurid trematodes of Oregon marine fishes

Creator:: McCauley, James Elias
Resource Type:: Dissertation
Full Text:: the Zoology Department of Oregon State College for suggesting this problem, tor placing his

The acute effects of stress on plasma proteins of rainbow trout, Oncorhynchus mykiss

Creator:: Demers, Nora Egan
Resource Type:: Masters Thesis
Full Text:: strain) were raised from eggs in 1990 at the Oregon Department of Fish and Wildlife Corvallis Fish

Rapid effects of corticosterone on stress-related behaviors in an amphibian

Creator:: Chiavarini, Katherine E.
Abstract:: In the wild, when an animal is exposed to predators or harsh conditions, the stress response is often associated with fleeing behaviors, which are seen as increased locomotor behavior. Handling-stress procedures and intracerebroventricular (icy) injection of corticotropin-releasing factor (CRF) have both been shown to cause an increase in locomotor activity...
Resource Type:: Masters Thesis
Full Text:: APPROVED: Major Professor, representing Zoology Chair of Department of Zoology Dean of Grad e School

A comparative analysis of morphological, physiological, and biochemical adaptation to abiotic stress in intertidal porcelain crabs, genus Petrolisthes

Creator:: Stillman, Jonathon Harris
Abstract:: Organismal tolerance to abiotic environmental stresses contributes significantly to setting the distribution limits of organisms, as demonstrated by vertical zonation patterns in the marine intertidal zone. In this thesis, the ultimate (evolutionary) and proximate (mechanistic) causes of tolerance to temperature and emersion stresses associated with the intertidal zone were examined...
Resource Type:: Dissertation
Full Text:: of Oregon State University libraries. My signature below authorizes release of my thesis to any

ScholarsArchive@OSU

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

Fish-habitat associations on a deep reef at the edge of the Oregon continental shelf

Comparison of submersible-survey and hydroacoustic-survey estimates of fish density on a rocky bank

The role of avian predators in an Oregon rocky intertidal community

Multiple stressors and amphibian population declines

Immediate effects of acute stress on innate immunity in rainbow trout (Oncorhynchus mykiss)

Some hemiurid trematodes of Oregon marine fishes

The acute effects of stress on plasma proteins of rainbow trout, Oncorhynchus mykiss

Rapid effects of corticosterone on stress-related behaviors in an amphibian

A comparative analysis of morphological, physiological, and biochemical adaptation to abiotic stress in intertidal porcelain crabs, genus Petrolisthes

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