Index Catalog // ScholarsArchive@OSU

Trophic dynamics of marine nekton and zooplankton in the Northern California Current ecosystem

Creator:: Miller, Todd William
Abstract:: The Northern California Current (NCC) ecosystem exhibits extreme seasonal, interannual and interdecadal shifts in the abiotic environment and shifts in primary and higher production. This variability is also apparent in the spatial structure of the ecosystem with nearshore-shelf waters (<150 m isobath) being highly productive and having a different community...
Resource Type:: Dissertation
Full Text:: TROPHIC DYNAMICS OF MARINE NEKTON AND ZOOPLANKTON WITHIN THE NORTHERN CALIFORNIA CURRENT PELAGIC

Distribution, structure, and function of marine ecological communities in the northern California Current upwelling ecosystem

Creator:: Reese, Douglas Charles
Abstract:: Within systems characterized by substantial spatial and temporal variability, abundances of organisms tend to be higher in localized areas. Within the northern California Current system, the identification of such marine, biological hotspots would be of great importance to resource managers, conservationists, and research planners, and is consequently a growing area...
Resource Type:: Dissertation
Full Text:: : Distribution, Structure, and Function of Marine Ecological Communities in the Northern California Current

Bio-physical interactions of small pelagic fish schools and zooplankton prey in the California Current System over multiple scales

Creator:: Kaltenberg, Amanda May
Abstract:: Small pelagic fish represent a critical trophic link between plankton and large predators in marine upwelling ecosystems such as the California Current System. Populations of these fish are highly variable over time and are characterized by extreme fluctuations in abundance, which have significant ecosystem impacts. The causes driving this instability...
Resource Type:: Dissertation
Full Text:: plankton and large predators in marine upwelling ecosystems such as the California Current System

Dietary responses of marine predators to variable oceanographic conditions in the Northern California Current

Creator:: Gladics, Amanda J.
Abstract:: Variable ocean conditions can greatly impact lower trophic level prey assemblages in marine ecosystems, with effects propagating up to higher trophic levels. Our goal was to better understand how varying ocean conditions influence diets and niche overlap among a suite of low- to mid trophic level predators. We studied the...
Resource Type:: Masters Thesis

Phytoplankton fluorescence and survival below the euphotic zone in the California current system

Creator:: Murphy, Alice M.
Resource Type:: Masters Thesis
Full Text:: Survival Below the Euphotic Zone in the California Current System. Abstract approved: Timothy J. High

Habitat use, spatial ecology, and stable isotope variability of the Pacific harbor seal (Phoca vitulina richardii) along the Oregon coast

Creator:: Steingass, Sheanna M.
Abstract:: Pacific harbor seals (Phoca vitulina richardii) are one of Oregon’s most common coastal predators, numbering between 10,000 and 12,000 individuals (Brown et al. 2005b). They consume more than 149 species or types of marine prey within the Pacific Northwest, which include a large variety of commercially important fisheries species. Despite...
Resource Type:: Dissertation
Full Text:: the Northern California Current Large Marine Ecosystem As Synthesized From Historical Data, 1931

Zooplankton variability in the California current, 1951-1982

Creator:: Roesler, Collin Stevens
Resource Type:: Masters Thesis
Full Text:: Variability in the California Current. 195 1-1982 Abstract Approved: Dudley B. Seasonal and non-seasonal

Ecological subsidies to rocky shore communities : setting the stage for community dynamics in the Northeast Pacific

Creator:: Krenz, Christopher
Abstract:: This dissertation focuses on the importance of pelagic subsidies in the Northeast Pacific to rocky shore community regulation. My results document the patterns of pelagic subsidy supply, determine if those subsidies are correlated with community structure, and examine if community regulation differs between areas of high- and low-subsidies. Understanding how...
Resource Type:: Dissertation
Full Text:: sparking my initial interest in marine ecology, and for giving me a job where I learned my passion for

Oceanographic conditions around the Galápagos Archipelago and their influence on cetacean community structure

Creator:: Palacios, Daniel Mauricio
Abstract:: The objectives of this dissertation were to describe the complex oceanographic conditions around the Galápagos Archipelago (eastern equatorial Pacific), their seasonal variability, and their effects on patterns of cetacean occurrence. The physical and ecological factors leading to a plume of high phytoplankton biomass in the wake of the Galápagos were...
Resource Type:: Dissertation
Full Text:: identified in both variables. The intensification of the Equatorial Front and the South Equatorial Current

Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific

Creator:: Evans, William Wiley
Abstract:: Tropical instability waves (TIWs) are prominent seasonal features in both the equatorial Pacific and Atlantic Oceans. This work quantifies their role in modulating the distributions of nutrients and phytoplankton biomass. Using an eight year record of biannual ship observations along the Tropical Atmosphere Ocean (TAO) buoy array, cruise sections crossing...
Resource Type:: Masters Thesis
Full Text:: boreal winter is the result of a slowing in the South Equatorial Current and North Equatorial

ScholarsArchive@OSU

Trophic dynamics of marine nekton and zooplankton in the Northern California Current ecosystem

Distribution, structure, and function of marine ecological communities in the northern California Current upwelling ecosystem

Bio-physical interactions of small pelagic fish schools and zooplankton prey in the California Current System over multiple scales

Dietary responses of marine predators to variable oceanographic conditions in the Northern California Current

Phytoplankton fluorescence and survival below the euphotic zone in the California current system

Habitat use, spatial ecology, and stable isotope variability of the Pacific harbor seal (Phoca vitulina richardii) along the Oregon coast

Zooplankton variability in the California current, 1951-1982

Ecological subsidies to rocky shore communities : setting the stage for community dynamics in the Northeast Pacific

Oceanographic conditions around the Galápagos Archipelago and their influence on cetacean community structure

Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific

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