Index Catalog // ScholarsArchive@OSU

The effects of PCB exposure on the behavior of the shore crab Hemigrapsus oregonensis

Creator:: Pearson, Walter H.
Abstract:: The behavior of the shore crab Hemigrapsus oregonensis was assessed with and without exposure to polychlorinated biphenyls (Aroclor 1260). After describing the crab's behavioral repertoire, activity budgets were developed from observations of the time crabs spent in 20 categories of shelter use, posture, and activity while held in habitat replicas...
Resource Type:: Dissertation
Full Text:: EXPOSURE ON THE BEHAVIOR OF THE SHORE CRAB HEMIGRAPS'US OREGONENSIS Abstract approved: Robert L. ilolton

Bioeconomic Simulation Modeling of Fisheries : Three Essays

Creator:: Cusack, Christopher Inju
Abstract:: Researchers rely on bioeconomic models to guide research and generate fishery management advice for commercial fisheries. Due partly to a paradigm shift towards ecosystem based fishery management, increasing complexity in the characteristics of the problems has meant that bioeconomic simulation models are becoming more prevalent in the fisheries literature. However...
Resource Type:: Dissertation
Full Text:: approach discussed. The third essay describes a bioeconomic simulation model of the Oregon Dungeness crab

Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

Creator:: Yochum, Noëlle
Abstract:: All animals that interact with fishing gear are not necessarily captured, and all animals that are captured are not necessarily retained. Fishing practices and gear configuration, management regulations, and markets dictate which animals ultimately are retained or discarded. The impact of a fishery and the efficacy of management regulations can...
Resource Type:: Dissertation
Full Text:: Application for Management: Dungeness Crab Bycatch in Oregon Pot Fisheries

Population structure of the intertidal shore crab Hemigrapsus oregonensis (Brachyura, Grapsidae) in Yaquina Bay, a central Oregon coast estuary

Creator:: Batie, Robert Edward
Abstract:: The Hemigrapsus oregonensis population at Coquille Point in the Yaquina Bay Estuary on the Central Oregon Coast was studied from April, 1972 through May, 1973. The population was found to be vertically stratified from the 1 ft level to the 5 ft level. Population densities were found to be most...
Resource Type:: Dissertation
Full Text:: - ufacturing. Commercial fisheries based here inclutle those for Dungeness crab, salmon, herring, pink shrimp

The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

Creator:: Zybach, Bob
Abstract:: The purpose of this study is to examine the relationship between land management practices of Indian communities prior to contact with Europeans and the nature or character of subsequent catastrophic forest fires in the Oregon Coast Range. The research focus is spatial and temporal patterns of Indian burning across the...
Resource Type:: Dissertation
Full Text:: management practices of Indian communities prior to contact with Europeans and the nature or character of

An economic evaluation of Columbia River anadromous fish programs

Creator:: Richards, Jack Arthur
Abstract:: It is important to avoid misallocation of resources for either private or public production. Misallocation in public programs can result from failure to employ resources in h:igh priority uses or to eliminate programs that have become obsolete. This study evaluates the benefits and costs of the continuing public program aimed...
Resource Type:: Dissertation
Full Text:: anadromous fishery is mitagory in nature. Fish Passage Program Federal and state governments have long

Biology of neustonic larval and juvenile fishes and crabs off Oregon, 1984

Creator:: Shenker, Jonathan M.
Resource Type:: Dissertation
Full Text:: throughout my graduate program at Oregon State University, arid it would require many, many pages to

Surface Water and Groundwater Interactions in the Walla Walla River, Northeast Oregon, USA : A Multi-Method Field-Based Approach

Creator:: Gryczkowski, Landon
Abstract:: Surface water and groundwater interactions are a key component in the functioning of stream ecosystems. Exchange of water between the stream and the hyporheic zone creates habitat for aquatic organisms and serves as a control for stream biogeochemical, thermal, and flow processes. This study takes a multi-method field-based approach to...
Resource Type:: Dissertation
Full Text:: Landon Gryczkowski A DISSERTATION submitted to Oregon State University

Performance of broilers and layers fed crab meal and other substances for improving utilization of diets containing whey or cellulose

Creator:: Tachasirinugune, Sommai
Abstract:: Several experiments involving broilers and laying hens were conducted to study the effects of feeding crab meal, dried whey and cellulose. The positive responses of crab meal as a substance for improving the utilization of dried whey and cellulose were examined. Cellulose treated with concentrated H3PO4 in broiler diets and...
Resource Type:: Dissertation
Full Text:: Performance of Broilers and Layers Fed Crab Meal and Other

Evidence, explanations, and recommendations for teachers' field trip strategies

Creator:: Rebar, Bryan M.
Abstract:: Field trips are well recognized by researchers as an educational approach with the potential to complement and enhance classroom science teaching by exposing students to unique activities, resources, and content in informal settings. The following investigation addresses teachers' field trip practices in three related manuscripts: (1) A study examining the...
Resource Type:: Dissertation
Full Text:: submitted to Oregon State University in partial fulfillment of the requirements for

ScholarsArchive@OSU

The effects of PCB exposure on the behavior of the shore crab Hemigrapsus oregonensis

Bioeconomic Simulation Modeling of Fisheries : Three Essays

Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

Population structure of the intertidal shore crab Hemigrapsus oregonensis (Brachyura, Grapsidae) in Yaquina Bay, a central Oregon coast estuary

The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

An economic evaluation of Columbia River anadromous fish programs

Biology of neustonic larval and juvenile fishes and crabs off Oregon, 1984

Surface Water and Groundwater Interactions in the Walla Walla River, Northeast Oregon, USA : A Multi-Method Field-Based Approach

Performance of broilers and layers fed crab meal and other substances for improving utilization of diets containing whey or cellulose

Evidence, explanations, and recommendations for teachers' field trip strategies

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