Index Catalog // ScholarsArchive@OSU

Seasonal relationship between the digestive enzyme activity of laminarinase and ingestion rate of Acartia clausii

Creator:: Ellis, Steven G.
Resource Type:: Masters Thesis

Effects of physical phenomena on the distribution of nutrients and phytoplankton productivity in a coastal lagoon

Creator:: Millan-Nunez, Roberto
Resource Type:: Masters Thesis
Full Text:: Phenomena on the Distribution of Nutrients and Phytoptankton Productivity in a Coastal Lagoon Abstract

Primary biomass and production processes in the Columbia River estuary

Creator:: Lara-Lara, Ruben
Resource Type:: Dissertation
Full Text:: productivity. Freshwater nanoplankton dominated netplankton in terms of biomass and production, and riverine

Deconvolving the sedimentary phases of barium using flow-through time-resolved analysis

Creator:: Hsieh, Chih-Ting
Abstract:: The distribution of barite (BaSO₄) in marine sediments has long been studied as a proxy for paleoproductivity. While pure barite is known to be a stable mineral in oxic sediments, it is also known that variations in the Sr/Ba ratio influence its solubility and liability during early diagenesis. To extract...
Resource Type:: Masters Thesis
Full Text:: accumulation of sedimentary barium has been recognized as a potential proxy for biological productivity for

Primary production dynamics in the North Pacific subtropical gyre

Creator:: Corno, Guido
Abstract:: The North Pacific subtropical gyre (NPSG), once considered to be a biological desert due to low primary production (PP) and its associated variability, has been found more productive and variable than previously thought. The environmental conditions controlling this relatively high PP variability are yet to be elucidated, despite important implications...
Resource Type:: Dissertation
Full Text:: , to a large extent, refuted by the increasing number of primary productivity measurements in these

Changing export production in the Eastern Equatorial Pacific, 160 ka to present

Creator:: Kish, Stacy W.
Abstract:: The increase in modern atmospheric CO₂ concentration (360 ppm) from pre-industrial levels (280 ppm) raises concern over the impact of anthropogenic carbon dioxide input on atmospheric chemistry. For this reason, it is important to understand the natural fluctuations of atmospheric carbon dioxide in the past. The Vostok ice core record...
Resource Type:: Masters Thesis
Full Text:: productivity over the past 160 ka based on four export production proxies, organic carbon mass accumulation

Phosphorus control of nitrogen fixation

Creator:: Watkins-Brandt, Katie S.
Abstract:: Under conditions of fixed N-limitation, as with most oligotrophic systems, the process of biological N₂ fixation (diazotrophy) is favored, provided the necessary trace elements and vitamins are sufficient. Despite the well understood contributions of N₂ fixation in oligotrophic regions, the nutritional and ecological controls of marine diazotrophs have not been...
Resource Type:: Masters Thesis
Full Text:: ) in regulating productivity and nitrogen fixation rates of diazotrophs and to examine the method of

Seasonal and tidal influence of the estuarine turbidity maximum on primary biomass and production in the Columbia River estuary

Creator:: Morgan, Stacey Rose
Abstract:: The Columbia River Estuary was sampled during high (May-June), intermediate (July), and low (September-October) river flow seasons to further define the role of the ETM with respect to its effect on primary biomass and production, and to discover how this effect changes in space and time. Strong ETMs were determined...
Resource Type:: Masters Thesis

Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

Creator:: Kavanaugh, Maria T.
Abstract:: Understanding and modeling microbial responses and feedbacks to climate change is hampered by a lack of a framework in the pelagic environment by which to link local mechanism to large scale patterns. Where terrestrial ecology draws from landscape theory and practice to address issues of scale, the pelagic seascape concept...
Resource Type:: Dissertation
Full Text:: linear regression (MLR) analyses of nutrient, primary productivity, and pCO2 data. Distinct nutrient

ScholarsArchive@OSU

Seasonal relationship between the digestive enzyme activity of laminarinase and ingestion rate of Acartia clausii

Effects of physical phenomena on the distribution of nutrients and phytoplankton productivity in a coastal lagoon

Primary biomass and production processes in the Columbia River estuary

Deconvolving the sedimentary phases of barium using flow-through time-resolved analysis

Primary production dynamics in the North Pacific subtropical gyre

Changing export production in the Eastern Equatorial Pacific, 160 ka to present

Phosphorus control of nitrogen fixation

Seasonal and tidal influence of the estuarine turbidity maximum on primary biomass and production in the Columbia River estuary

Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

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