Physical Sciences and Mathematics Commons^™

Experiments To Maximize Growth In Captive Florida Pompano (Trachinotus Carolinus), Brian J. Hicks

HCNSO Student Theses and Dissertations

Florida pompano (Trachinotus carolinus) are highly prized food and sport fish indigenous to coastal areas of the southeastern United States. A commercially valuable fishery has historically existed in the Gulf of Mexico and on the South Atlantic seaboard. Efforts to economically culture Florida pompano in a captive environment were only partially successful. Four experiments were performed to explore the physical and environmental requirements of Florida pompano and other closely related species in the Family (Carangidae):

Experiment #1- Semi-natural spawning was induced with newly developed hormonal implants. to initiate and sustain semi-natural spawning in captive Florida pompano. Fish collected from the …

Best Practices For Tourism Center Development Along The Red Sea Coast, Stephen M. Reeve, Stephen C. Jameson, Ragaei S. Abdel-Fattah, Bernhard Riegl, Randa Hassan, Alvin P. Newman

Marine & Environmental Sciences Faculty Reports

The spectacular coastlines along Egypt's Red Sea and Gulf of Aqaba are the focus for one of the fastest growing tourism economies in the world. In order to accomplish national objectives for growth in permanent, well-paying jobs and in foreign exchange earnings, the Tourism Development Authority (TDA) has launched an initiative to make land available to investors for resort development along these coastlines. As of December, 1997, 6,000 hotel rooms are under construction in the Red Sea region and the TDA has proposals for at least 240 major resorts to be built by the year 2020.

While this program has …

Fall 1998, Nsu Oceanographic Center

Currents

No abstract provided.

Mesures Directes Et Modélisation De La Croissance Rapide D'Un Crinoïde Pédonculé Bathyal Au Large Des Bahamas (Direct Measurement And Inferred Model Of Rapid Growth In A Bathyal Stalked Crinoid From Bahamas Islands), Jérôme David, Charles G. Messing, Tomasz K. Baumiller, Nadia Améziane, Michel Roux

Marine & Environmental Sciences Faculty Articles

Several specimens of the isocrinid crinoid Neocrinus decorus were collected from a depth of 420 m off Bahamas Islands with the research submersible Johnson Sea Link. To study growth rates, these specimens were tagged, deployed and then recovered 250 days later. The average growth rate of stalk length is 10.8 cm.year⁻¹ with a maximum value at 14.3 cm.year⁻¹. These results allow us to propose a model of growth and regeneration for stalked crinoids in which the energy allocation is modulated through time to the arms and the stalk. Following arm autotomy, in order to re-establish optimum filtration …

Summer 1998, Nsu Oceanographic Center

Currents

No abstract provided.

Comments On ‘‘Air–Sea Gas Transfer: Mechanisms And Parameterization’’, Alexander Soloviev, Peter Schlüssel

Marine & Environmental Sciences Faculty Articles

No abstract provided.

B→Sγ Constraints On The Minimal Supergravity Model With Large Tanβ, Howard Baer, Michal Brhlik, Diego Castano, Xerxes Tata

Chemistry and Physics Faculty Articles

In the minimal supergravity model (MSUGRA), as the parameter tanβ increases, the charged Higgs boson and light bottom squark masses decrease, which can potentially increase contributions from tH±, ̃gbj and Zibj loops in the decay →bsγ. We update a previous QCD improved →bsγ decay calculation to include in addition the effects of gluino and neutralino loops. We find that, in the MSUGRA model, loops involving charginos also increase, and dominate over tW, tH±, ̃g̃q and Zĩq contributions for tanβ≳5−10. We find for large values of tanβ∼35 that most of the parameter space of the MSUGRA model for μ<0 is ruled out due to too large a value of branching ratio B(→bsγ). For μ>0 and …

Midwater Fishes And Shrimps As Competitors And Resource Partitioning In Low Latitude Oligotrophic Ecosystems, T. L. Hopkins, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

Oligotrophic tropical-subtropical oceanic regimes constitute the largest and most ancient ecosystem on earth, with these enormous areas being characterized by high faunal diversity. The stability and age of the ecosystem have enabled the evolution of many similar species niches where there is considerable overlap in niche parameters such as food and space, resulting in high species packing, especially in the epi- and mesopelagic zones. Competition for limited resources undoubtedly exists and has been described by MacArthur (1972; Geographical ecology, Harper and Row, New York) as diffuse competition where each species is impacted by many other species sharing the environment. Most …

A Near-Surface Microstructure Sensor System Used During Toga Coare. Part I: Bow Measurements., Alexander Soloviev, Roger Lukas, Sharon Decarlo, Jefrey Snyder, A. Arjannikov, Vyacheslav Turenko, M. Baker, Dmitry Khlebnikov

Marine & Environmental Sciences Faculty Articles

High-resolution probes mounted on the bow of the vessel at a 1.7-m depth in an undisturbed region ahead of the moving vessel were used for microstructure and turbulence measurements in the near-surface layer of the ocean during TOGA COARE. The probes measured temperature, conductivity, pressure, three-component fluctuation velocity, and two components of acceleration. Accumulation of large amounts of high-quality nearsurface data poses a difficult challenge, and deployment from the bow of a ship, such as is done with these sensors, requires rugged, well-calibrated, and low-noise sensors. The heaving motion of the ship that causes the sensors to break through the …

Spring 1998, Nsu Oceanographic Center

Currents

No abstract provided.

Florida Coral Reef Damage From Nuclear Submarine Grounding And Proposed Restoration, Kenneth Banks, Richard E. Dodge (Editor), Lou Fisher, David K. Stout, Walter Jaap

Marine & Environmental Sciences Faculty Articles

The United States submarine Memphis grounded in approximately 10 m water depth on a tropical coral reef ofT southeast Florida in February, 1993. The grounding caused extensive physical and biological damage to the reef substrate and to the coral community. As part of a claim by the State of Florida against the United States, the impact of the grounding was assessed, and the area of damage was determined through field and photographic studies. A recovery rate for the reef was assigned from literature estimates. The NOAA Habitat Equivalency Model (HEM) was used to calculate the reef area needed to be …

Trophic Diversity Of A Mesopelagic Fish Community., Tracey Sutton, Thomas L. Hopkins, Thomas M. Lancraft

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

To understand the character of prey partitioning in a low latitude oligotrophic region, a composite picture of the trophic structure of a mesopelagic fish community was made from the eastern Gulf of Mexico. Two hundred and twenty three species were collected in the area of which I61 species were abundant enough for analyses. Fifteen major categories of prey biomass are identified for diet analyses: viz. copepods, ostracods, amphipods, euphausiids, decapods, larvaceans, salps, coelenterates (primarily siphonophores), unidentified gelatinous prey, polychaetes, gastropods, cephalopods, chaetognaths, fish, other food. Prey partitioning is minimal across major prey categories as the vast majority of mesopelagic fishes …

Sea Turtle Conservation Program, Broward County, Fl 1998 Report, Curtis M. Burney, William E. Margolis

Marine & Environmental Sciences Faculty Reports

No abstract provided.

The Extent And Condition Of Us Coral Reefs, Steven Miller, Steven Miller, Michael Crosby

Marine & Environmental Sciences Faculty Reports

No abstract provided.

Winter 1998, Nsu Oceanographic Center

Currents

No abstract provided.

The Role Of The Einstein Library Of Nova Southeastern University In Meeting The Needs Of Distance Education Students, Anne K. Abate

CCE Theses and Dissertations

The goal of this study was to evaluate the information needs of a selected segment of the distance learning graduate student population served by the Einstein Library at Nova Southeastern University and to propose a new model of library service based on the implementation of current and emerging technologies. Several survey instruments were developed and administered through electronic mail to students and faculty in the School of Computer and Information Sciences, the Center for Psychological Studies, and the School of Social and Systemic Studies, the Fischler Center for the Advancement of Education and the School of Business and Entrepreneurship at …

Effect Of Electronic Portfolio Assessments On The Motivation And Computer Interest Of Fourth And Fifth Grade Students In A Massachusetts Suburban School, Paul V. Montesino

CCE Theses and Dissertations

A preliminary causal-comparative study was conducted in an elementary suburban school in Massachusetts to investigate the impact of electronic portfolio assessments in student's intrinsic motivation and computer interest.

The target population were two groups of fourth grade and two groups of fifth grade students for a total of 77 subjects. They were trained and introduced to electronic portfolio assessments, a program which lasted for the entire school year. The students used Hyper Studio, a multimedia software program developed and marketed by Roger Wagner Publishing, Inc.

It was the intention of the elementary school program directors and teachers that students would …

The Auditory Display In Interactive Courseware: Moving Human Factors Into Computer Education, David T. Lauret

CCE Theses and Dissertations

The arrival of inexpensive high fidelity audio capabilities for personal computers has been accompanied by sweeping claims of enhanced educational effectiveness. Research has only served to confuse these claims with both significant and non-significant findings. This may be due partly to the single dimensional model which has been assumed when examining audio. When computer-based audio is examined as a multi-dimensional display analogous in capability and function to the more familiar visual display (computer screen), a different picture emerges. Although it is now clear that integrated audio can enhance learning, the instructional designer is still left with little guidance whether or …

A Simplified Faceted Approach To Information Retrieval For Reusable Software Classification, Victor Allen Nguyen

CCE Theses and Dissertations

Software Reuse is widely recognized as the most promising technique presently available in reducing the cost of software production. It is the adaptation or incorporation of previously developed software components, designs or other software-related artifacts (i.e. test plans) into new software or software development regimes. Researchers and vendors are doubling their efforts and devoting their time primarily to the topic of software reuse. Most have focused on mechanisms to construct reusable software but few have focused on the problem of discovering components or designs to meet specific needs. In order for software reuse to be successful, it must be perceived …

1998-1999 Nova Southeastern University Center For Undergraduate Studies Catalog, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.

The Occurrence Of Pcbs And Chlorinated Pesticide Contaminants In Bottlenose Dolphins (Tursiops Truncatus) In A Resident Community: Comparison With Age, Gender And Birth Order, Kathleen M. Kuss

HCNSO Student Theses and Dissertations

Tissue samples from twenty bottlenose dolphins from a stable, residential community of coastal dolphins in the western Gulf of Mexico were analyzed for toxic PCB congeners and chlorinated pesticides. The tissues analyzed (blubber and melon) were from known individuals in a long-term (27⁺ y) study that stranded and were recovered for necropsy. Substantial demographic data were available on these individuals and utilized in the analysis of maternal transfer of organochlorines to young.

The male dolphins in this study were shown to accumulate organochlorine contaminants with age. In female dolphins the organochlorine levels were found to decline with age. These …

Variability In Copepod Hatching Success: Observations On Natural Populations And Experiments On The Role Of Maternal Diet, Carol A. Burkart

HCNSO Student Theses and Dissertations

The objectives of this study were (1) to survey the percent hatching success of eggs produced by calanoid copepod species from a variety of ecosystems (i.e., polar, temperate, and sub-tropical), (2) to describe the relationship between egg production, hatching success of Acartia tonsa and the physical and food environments of Florida Bay, and (3) to describe the relationships between hatching success and maternal diet. In order to fulfill the first objective, an incubation system was designed to allow the monitoring of eggs at sea for extended periods of time. The second objective was addressed with a series of egg production …