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Articles 31 - 60 of 67
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Physical And Biological Characteristics Of Billfish Spawning Habitat In The Straits Of Florida, David Earl Richardson
Physical And Biological Characteristics Of Billfish Spawning Habitat In The Straits Of Florida, David Earl Richardson
Open Access Dissertations
The objective of this dissertation was to examine sailfish (Istiophorus platypterus) and blue marlin (Makaira nigricans) spawning in the Straits of Florida, with a specific focus on 1) the physical and biological characteristics of the spawning environment, and 2) the role of the region within the broader spawning patterns of these two species. In order to accomplish these objectives, two years of monthly ichthyoplankton collections and physical measurements across the Straits of Florida were combined with a finer-scale Lagrangian study. Additionally, a molecular species-identification methodology was developed that was both high-throughput and suitable for use with a broad taxonomic range …
Distribution, Reproduction, And Transport Of Zooplankton In The Western Arctic, Leopoldo Llinas
Distribution, Reproduction, And Transport Of Zooplankton In The Western Arctic, Leopoldo Llinas
Open Access Dissertations
This dissertation focuses on the distribution, reproduction, and transport of zooplankton in the Chukchi and Beaufort seas and adjacent Canada Basin. Specifically, it analyzes 1) the species-specific distribution of copepod nauplii as it is forced by the surface layer mesoscale circulation and physical properties, 2) the reproduction of the dominant copepod Calanus glacialis in the western Arctic, and 3) the effects of eddy transport on the zooplankton community in the Chukchi and Beaufort seas and Canada Basin. To achieve this I adapted a molecular identification method to work with small crustaceans. The method was successfully used to generate a sequence …
Nitrogen Cycling On Coral Reefs: A Stable Isotopic Investigation Of Nutrient Dynamics Within The Florida Keys Coral Reef Tract, Kathryn Amanda Lamb-Wozniak
Nitrogen Cycling On Coral Reefs: A Stable Isotopic Investigation Of Nutrient Dynamics Within The Florida Keys Coral Reef Tract, Kathryn Amanda Lamb-Wozniak
Open Access Dissertations
This dissertation serves as a comprehensive, natural-abundance analysis of the present-day spatial and temporal dynamics and trophic linkages of nitrogen from within the Florida Keys National Marine Sanctuary (FKNMS). This work was accomplished by documenting the delta 15 N of particulate organic matter (POM), several genera of aquatic vegetation and herbivorous fish, as well as dissolved water column nitrogen. Seasonal and spatial variations in delta 15 N were assessed, trophic level variations among reef constituents were quantified, and relative contributions of both natural and anthropogenic nitrogen into the reef tract were determined. The measured mean delta 15 N of POM …
Aspects Of Bacterial Community Ecology Within The American Oyster (Crassostrea Virginica), And Surveillance Of Post-Harvest Vibrio Vulnificus Occurrence, Kenneth John La Valley
Aspects Of Bacterial Community Ecology Within The American Oyster (Crassostrea Virginica), And Surveillance Of Post-Harvest Vibrio Vulnificus Occurrence, Kenneth John La Valley
Open Access Dissertations
This dissertation research addressed the fundamental question of what the general microbial flora within the oyster is and what influence depuration and relay have on bacterial communities in the oyster. Comparisons of bacterial community profiles were made using culture-dependent and culture-independent isolation techniques and a nested PCR-DGGE (Denaturing Gradient Gel Electrophoresis) approach. Differences in the composition of the bacterial community between culture-dependent and culture-independent profiles were detected. The effect of culture-based techniques is significant and results in a biased representation of community structure. This bias may be minimized for the oyster compared to the large differences typically detected between culturable …
Predicting Condition Of Small Estuarine Systems Along The United States' Atlantic Coast, Jeffrey W. Hollister
Predicting Condition Of Small Estuarine Systems Along The United States' Atlantic Coast, Jeffrey W. Hollister
Open Access Dissertations
Anthropogenic activities are known to degrade the ecological condition of estuaries. Also, numerous studies find links between landscape structure and estuarine condition. From these relationships, it is possible to build predictive models of estuarine condition. In this study, I examined issues of data quality, scale, and statistical approach to developing predictive models of estuarine sediment metal concentrations in the Mid-Atlantic region of the United States. I assessed the accuracy of the National Land Cover Dataset (NLCD) at multiple scales by comparing it with reference data from Rhode Island and Massachusetts. Area of developed lands, agriculture, forest and water had acceptable …
The Relationship Between A Sense Of Community And Social Disorganization And Neighborhood Deprivation, Sharon Kingston
The Relationship Between A Sense Of Community And Social Disorganization And Neighborhood Deprivation, Sharon Kingston
Open Access Dissertations
Empirical work on conditions in economically deprived neighborhoods, suggest that neighborhood conditions can exert negative effects human development even after accounting for individual characteristics of neighborhood residents. One of the most important theories regarding the ways in which neighborhood conditions impact behavior is the theory of social disorganization. Social disorganization posits that poverty and disorganizing social conditions interfere with the ability of neighborhood residents to form and enforce common social norms, leading to social problems (Byrne & Sampson, 1993, Sampson & Groves, 1989). Despite the utility of theories such as social disorganization, the measurement of important mediating variables between structural …
Assessing The Ecological Risk Of Toxic Chemicals On Coastal And Estuarine Ecosystems, Robert Kenneth Johnston
Assessing The Ecological Risk Of Toxic Chemicals On Coastal And Estuarine Ecosystems, Robert Kenneth Johnston
Open Access Dissertations
No abstract provided.
Systematics Of Selected Species Of The Marine Diatom Genus Chaetoceros Ehrenberg 1844, Jan Elizabeth B. Rines
Systematics Of Selected Species Of The Marine Diatom Genus Chaetoceros Ehrenberg 1844, Jan Elizabeth B. Rines
Open Access Dissertations
No abstract provided.
Seasonal Dynamics Of Gigaspora Gigantea And Associated Microorganisms In A Sand Dune, Pau-Ju Lee
Seasonal Dynamics Of Gigaspora Gigantea And Associated Microorganisms In A Sand Dune, Pau-Ju Lee
Open Access Dissertations
No abstract provided.
Effects Of Crustacean Wastes On The Viability Of Beauveria Bassiana In Soil, Cheng-Jen Tsai
Effects Of Crustacean Wastes On The Viability Of Beauveria Bassiana In Soil, Cheng-Jen Tsai
Open Access Dissertations
No abstract provided.
Ecology Of Oceanic Diatoms: Investigations Of Symbioses, Suspension And Growth Dynamics Of Selected Rhizosolenia Species, Tracy Alan Villareal
Ecology Of Oceanic Diatoms: Investigations Of Symbioses, Suspension And Growth Dynamics Of Selected Rhizosolenia Species, Tracy Alan Villareal
Open Access Dissertations
No abstract provided.
The Impact Of Natural And Induced Stress On Variation And Adaptation Within Populations Of Dennstaedtia Punctilobula (Michx.) Moore, Susan Chandler Lum Hammen
The Impact Of Natural And Induced Stress On Variation And Adaptation Within Populations Of Dennstaedtia Punctilobula (Michx.) Moore, Susan Chandler Lum Hammen
Open Access Dissertations
No abstract provided.
The Feeding Ecology Of The Genus Fissurella (Mollusca: Gastropoda) On Isla De Margarita, Venezuela, Craig Joseph Franz
The Feeding Ecology Of The Genus Fissurella (Mollusca: Gastropoda) On Isla De Margarita, Venezuela, Craig Joseph Franz
Open Access Dissertations
No abstract provided.
Physiology And Ecology Of Vesicular-Arbuscular Mycorrhizal Fungi In Sand Dune Systems, Jane Natale Gemma
Physiology And Ecology Of Vesicular-Arbuscular Mycorrhizal Fungi In Sand Dune Systems, Jane Natale Gemma
Open Access Dissertations
No abstract provided.
The Biology Of Chrysomelobia Labidomerae Eickwort, And Its Potential To Control The Colorado Potato Beetle (Parasitic Mite, Podapolipidae, Biological Control), Francis Andrew Drummond
The Biology Of Chrysomelobia Labidomerae Eickwort, And Its Potential To Control The Colorado Potato Beetle (Parasitic Mite, Podapolipidae, Biological Control), Francis Andrew Drummond
Open Access Dissertations
No abstract provided.
Modeling The Productivity Of Natural Phytoplankton Populations Using Mesocosm Data Along A Nutrient Gradient (Narragansett Bay, P-I Curve), Aimee A. Keller
Modeling The Productivity Of Natural Phytoplankton Populations Using Mesocosm Data Along A Nutrient Gradient (Narragansett Bay, P-I Curve), Aimee A. Keller
Open Access Dissertations
No abstract provided.
Descriptive Community Dynamics: Background And An Application To Tropical Fisheries Management (Philippines), John William Mcmanus
Descriptive Community Dynamics: Background And An Application To Tropical Fisheries Management (Philippines), John William Mcmanus
Open Access Dissertations
No abstract provided.
Ecological Studies Of Benthic Meiofauna In Mesocosms, Jeffrey Brian Frithsen
Ecological Studies Of Benthic Meiofauna In Mesocosms, Jeffrey Brian Frithsen
Open Access Dissertations
No abstract provided.
The Effect Of Sublethal Endrin Exposure On Cortisol Release And The Immune Response Of Rainbow Trout, Salmo Gairdneri Richardson, Richard Orrin Bennett
The Effect Of Sublethal Endrin Exposure On Cortisol Release And The Immune Response Of Rainbow Trout, Salmo Gairdneri Richardson, Richard Orrin Bennett
Open Access Dissertations
No abstract provided.
Adolescent Involvement: A Psychological Study Of High School Experience And Performance, Michael Leonard Nover
Adolescent Involvement: A Psychological Study Of High School Experience And Performance, Michael Leonard Nover
Open Access Dissertations
No abstract provided.
Determination Of Production Biology Of Cladocera In A Reservoir Receiving Hyperthermal Effluents From A Nuclear Production Reactor, Torgny Josef Vigerstad
Determination Of Production Biology Of Cladocera In A Reservoir Receiving Hyperthermal Effluents From A Nuclear Production Reactor, Torgny Josef Vigerstad
Open Access Dissertations
No abstract provided.
Factors Correlated With The Intertidal Distribution Of Meiofauna Along A Rhode Island Estuary, Muriel Gayle Kraus
Factors Correlated With The Intertidal Distribution Of Meiofauna Along A Rhode Island Estuary, Muriel Gayle Kraus
Open Access Dissertations
No abstract provided.
The Growth And Life-History Strategy Of The Soft-Shell Clam, Mya Arenaria L., Richard S. Appeldoorn
The Growth And Life-History Strategy Of The Soft-Shell Clam, Mya Arenaria L., Richard S. Appeldoorn
Open Access Dissertations
The growth and life-history strategy of the soft-shell clam, Mya arenaria were analyzed through the exanination of 25 populations spread throughout the species' geographic range. Growth rate was determined by length-frequency analysis and was analyzed using Gallucci and Quinn's ω parameter of the von Bertalanffy equation. Principal components analysis (PCA) was used to analyze environmental variability. Variations in growth were related to environmental differences. Growth varied inversely with latitude. This relationship was due mostly to temperature differences. PCA indicated that several environmental factors varied systematically with latitude. Growth was found to be negatively correlated to the siltiness of the sediment …
The Ecology Of The Common Squid Loligo Pealei Lesueur, 1821 In Rhode Island Waters, William Kingsland Macy Iii
The Ecology Of The Common Squid Loligo Pealei Lesueur, 1821 In Rhode Island Waters, William Kingsland Macy Iii
Open Access Dissertations
No abstract provided.
Organic Molecular Stratigraphy Of The Lake Turkana Basin, Kenya, Alexander Dallas Wait
Organic Molecular Stratigraphy Of The Lake Turkana Basin, Kenya, Alexander Dallas Wait
Open Access Dissertations
No abstract provided.
Population Distribution, Substrate Colonization And Environmental Regulation Of Wood-Inhabiting Fungi In A New England Estuary, Richard Derrick Brooks
Population Distribution, Substrate Colonization And Environmental Regulation Of Wood-Inhabiting Fungi In A New England Estuary, Richard Derrick Brooks
Open Access Dissertations
No abstract provided.
Nitrogen Relations In Selected Macroalgae From Camp Varnum And Ninigret Pond In Rhode Island, Seth Ohene Asare
Nitrogen Relations In Selected Macroalgae From Camp Varnum And Ninigret Pond In Rhode Island, Seth Ohene Asare
Open Access Dissertations
No abstract provided.
Studies Of Cenozoic Deep-Sea Benthonic Foraminifera In The Southern Ocean, Bruce Hayward Corliss
Studies Of Cenozoic Deep-Sea Benthonic Foraminifera In The Southern Ocean, Bruce Hayward Corliss
Open Access Dissertations
No abstract provided.
Physiological Ecology Of Codium Fragile Subsp. Tomentosoides, Michael Dennis Hanisak
Physiological Ecology Of Codium Fragile Subsp. Tomentosoides, Michael Dennis Hanisak
Open Access Dissertations
No abstract provided.
The Seasonal Succession And Distribution Of Filamentous Fungi Associated With Spartina Alterniflora And In Vitro Studies On The Growth, Nutrition, And Taxonomic Position Of Sphaerulina Pedicellata, Robert Valentine Gessner
The Seasonal Succession And Distribution Of Filamentous Fungi Associated With Spartina Alterniflora And In Vitro Studies On The Growth, Nutrition, And Taxonomic Position Of Sphaerulina Pedicellata, Robert Valentine Gessner
Open Access Dissertations
No abstract provided.