Index Catalog // ScholarsArchive@OSU

A systems approach to pelagic ecosystem dynamics in an estuarine environment

Creator:: Iverson, Richard L.
Abstract:: Phytoplankton dynamics in Auke Bay, Alaska, were studied during summer, 1969. Nitrate, chlorophyll a, particulate organic carbon, phytoplankton and zooplankton species composition and hydrographic and meteorological data were collected and analyzed. Nitrate input into Auke Bay through freshwater runoff was negligible. A bloom of Thalassiosira aestivalis formed the spring bloom...
Resource Type:: Dissertation

Tidal exchange of decapod larvae and small benthic peracarids between the ocean and the Salmon River estuary, Oregon

Creator:: Gonzalez, Exequiel
Abstract:: Zooplankton samples taken during daylight periods in a fast flushing estuary on the Central Oregon coast were analyzed for Brachyuran and Anomuran larvae and also for benthic gammaridean amphipods and Myscidacea. Several larval stages of Pinnixa littoralis, Hemigrapsus oregonensis, Pachycheles spp., Cancer oregonensis and Pagurus granosimanus were sufficiently abundant for...
Resource Type:: Masters Thesis

Forage Fish in the California Current Large Marine Ecosystem: Ecological Linkages, Current Catches and Values

Creator:: Cisneros-Montemayor, Andres and Sumaila, Rashid
Abstract:: I begin my talk by identifying the fish species that inhabit the California Current Large Marine ecosystem (CCLME). Next, I categorize these species into predator-prey and forage and non-forage fishes. I then present the current catches, landed values, payment to labour (wages), capital (profit) and payment to the resource owners...
Resource Type:: Other
Full Text:: California Current Large Marine Ecosystem: Ecological Linkages, Current Catches and Values Authors

Microeconomic influence of Marine Environment Conditions on Red Seabream Fishery of the Strait of Gibraltar

Creator:: Castilla Espino, David, Bago Sotillo, Elena, and García del Hoyo, Juan José
Abstract:: This paper is aimed at determining the impact of the variability of marine environment conditions on the capture of a vessel that exploit the red seabream fishery of the Strait of Gibraltar. This paper estimates first and second order elasticities of a Translog approximation of a Stochastic Distance Functions of...
Resource Type:: Research Paper
Full Text:: MICROECONOMIC INFLUENCE OF MARINE ENVIRONMENT CONDITIONS ON RED SEABREAM FISHERY OF THE STRAIT OF GIBRALTAR

Biodiversity : illustrations of some concepts, causes, and consequences

Creator:: Russell, Roland B.
Abstract:: Careful analysis and thoughtful synthesis will be necessary for expanding the envelope of ecological understanding. This work is my attempt at communicating both of these, in relation to three questions about our understanding of the structure and dynamics of biological diversity. These questions focus on a) advancing our understanding of...
Resource Type:: Dissertation
Full Text:: macroalgal behaviour would be a remarkable advance for marine ecology, and appears attainable. Chapter three

Early spring nutrient conditions of southeastern Alaska's Inside Passage

Creator:: Coughenower, D. Douglas
Abstract:: Observations were made of salinity, temperature, nitrate + nitrite, phosphate, silicate, total available nitrogen, and chlorophyll a in nine areas of the Alaskan Inside Passage during April of 1971. In general all properties indicated the water to be well mixed throughout this area. The conservative properties were particularly uniform. The...
Resource Type:: Masters Thesis
Full Text:: characteristics by Pickard (1967). A few individual features have been well studied. Phytoplankton ecology by

Some aspects of marine hydroid ecology off Oregon

Creator:: McCormick, J. Michael (Jon Michael), 1941-
Resource Type:: Masters Thesis
Full Text:: MARINE HYDP OlD ECOLOGY OFF OREGON Abstract approved 'I Marine, off-shore hydroids off Oregon were

Primary productivity and community structure of an estuarine impoundment

Creator:: Lyford, John Higgins
Abstract:: An impounded estuary was employed to study primary productivity, community respiration, and community structure as they related to seasonal and temporal succession, salinity, and water temperature. Plankton metabolism was studied by means of the light-and dark-bottle technique. Benthic community metabolism was determined by using the "diurnal oxygen curve" method. Four...
Resource Type:: Dissertation
Full Text:: concept for the science of ecology and provides unity be- tween the study of the individual organisms

The Effect of the Environment on California's Commercial Fisheries

Creator:: Norton, Jerrold and Herrick, Samuel Jr
Abstract:: Long-term, naturally occurring cycles can cause significant shifts in marine ecosystems referred to as regime shifts. While the new regime can be as diverse and ecologically acceptable as that which it replaced, individual species may completely disappear or be greatly depressed when a regime shift occurs. In this work we...
Resource Type:: Other
Full Text:: ) Abstract: Long-term, naturally occurring cycles can cause significant shifts in marine ecosystems referred

Plants, plant communities, net production and tide levels; the ecological biogeography of the Nehalem salt marshes, Tillamook County, Oregon

Creator:: Eilers, H. Peter
Abstract:: Nehalem Bay is located on the northern coast of Oregon in Tillamook County and contains approximately 243 ha of salt marsh. The Nehalem marshes occur as islands and land-tied units. West Island is the largest marsh island with an area of 82.9 ha and a maximum elevation of 3.079 m...
Resource Type:: Dissertation

ScholarsArchive@OSU

A systems approach to pelagic ecosystem dynamics in an estuarine environment

Tidal exchange of decapod larvae and small benthic peracarids between the ocean and the Salmon River estuary, Oregon

Forage Fish in the California Current Large Marine Ecosystem: Ecological Linkages, Current Catches and Values

Microeconomic influence of Marine Environment Conditions on Red Seabream Fishery of the Strait of Gibraltar

Biodiversity : illustrations of some concepts, causes, and consequences

Early spring nutrient conditions of southeastern Alaska's Inside Passage

Some aspects of marine hydroid ecology off Oregon

Primary productivity and community structure of an estuarine impoundment

The Effect of the Environment on California's Commercial Fisheries

Plants, plant communities, net production and tide levels; the ecological biogeography of the Nehalem salt marshes, Tillamook County, Oregon

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