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- Title
- "Dawn and Doom Were in the Branches": Religious Tension in Zora Neale Hurston's Their eyes Were Watching God and Ernest J. Gaine's A Gathering of Old Men.
- Creator
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Benson, Kathryn A., College of Arts & Sciences
- Abstract / Description
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Given that religion, specifically Christianity, plays such an important role in the creation, definition, and maturation of both Hurston ' s and Gaines’s characters, I believe it is imperative to evaluate the role that this religion plays in the lives of the black characters in two seminal texts by these two authors. Clearly religious concerns are at work throughout both texts, so too, then, is the issue of race in that the black characters, via their enslaved ancestors, inherited...
Show moreGiven that religion, specifically Christianity, plays such an important role in the creation, definition, and maturation of both Hurston ' s and Gaines’s characters, I believe it is imperative to evaluate the role that this religion plays in the lives of the black characters in two seminal texts by these two authors. Clearly religious concerns are at work throughout both texts, so too, then, is the issue of race in that the black characters, via their enslaved ancestors, inherited Christianity as they knew it from white slaveholders. Thus, the study of Christianity in the lives of black Southern characters necessarily must also address racism. This analysis, then, speaks to the role that white Christian ideology plays in the shaping of black Southern characters, in terms of both identity and religion.
Show less - Date Issued
- 2007
- Identifier
- fgcu_ETD_0465
- Format
- Document (PDF)
- Title
- A CASE REPORT OF MYCOBACTERIUM AVIUM COMPLEX AND LADY WINDERMERE SYNDROME.
- Creator
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Cathey, Payton
- Abstract / Description
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Bronchiectasis is a common precursor to a patient developing a Mycobacterium avium complex (MAC) infection. Patients that are affected by MAC infections, typically have an underlying form of pulmonary disease. Often times, Lady Windermere Syndrome (LWS) is diagnosed when a patient presents with a MAC infection following right middle lobe or lingular bronchiectasis. LWS presents most commonly in female patients that are tall and slender who are lifetime non-smokers. These patients voluntarily...
Show moreBronchiectasis is a common precursor to a patient developing a Mycobacterium avium complex (MAC) infection. Patients that are affected by MAC infections, typically have an underlying form of pulmonary disease. Often times, Lady Windermere Syndrome (LWS) is diagnosed when a patient presents with a MAC infection following right middle lobe or lingular bronchiectasis. LWS presents most commonly in female patients that are tall and slender who are lifetime non-smokers. These patients voluntarily suppress their cough, which causes a reduced clearance of secretions from the right middle lobe and lingular lobe that have narrowed bronchi. Due to this, subsequently can lead to becoming infected with MAC. Mycobacteria are found in various organic reservoirs throughout the United States. Mainly, mycobacteria are found in soil and water. Well-known sources of water include, lakes, pools and hot tubs. Mycobacteria are thicker cell wall that makes them resistant to heavy metals, disinfectants and antibiotics. This is a case report outlining a patient in a pulmonary clinic that presented with a mildly productive cough and shortness of breath with exertion. Her history was significant for 2 recent bouts of pneumonia. She was a tall, slender lifetime non-smoker. The patient noted that she uses her pool daily. Throughout this case report, MAC, LWS as well as bronchiectasis are described in detail and the specific treatments are discussed.
Show less - Date Issued
- 2019-12-14
- Identifier
- fgcu_ETD_0318
- Format
- Document (PDF)
- Title
- A Comparison Between Physical Therapy and Chiropractor Billing and Patient Costs for Patients.
- Creator
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Landis, Sean, Marieb College of Health & Human Services
- Abstract / Description
-
INTRODUCTION: Neck pain is the second most frequent reason patients take time off work in the United States. Research has been conducted examining the effectiveness in both chiropractic and physical therapy in the treatment of cervical spine dysfunction. To this date, no research can be found that directly compares reimbursement rates and patient costs between the two professions. Recent healthcare reform makes the analysis of reimbursement and patient costs vital for the future of the...
Show moreINTRODUCTION: Neck pain is the second most frequent reason patients take time off work in the United States. Research has been conducted examining the effectiveness in both chiropractic and physical therapy in the treatment of cervical spine dysfunction. To this date, no research can be found that directly compares reimbursement rates and patient costs between the two professions. Recent healthcare reform makes the analysis of reimbursement and patient costs vital for the future of the profession of physical therapy. METHODOLOGY: Personal interviews were conducted at (3) physical therapy and (3) chiropractic clinics in the Southwest Florida area. Data collected included reimbursement rates/fee schedules and patient costs for the copay, initial evaluation, manual therapy/chiropractic manipulative therapy, neuromuscular reeducation, mechanical traction, and therapeutic exercise. Data analysis was performed using descriptive statistics. Patient costs and reimbursement rates between the two professions, as well as between automobile and non-automobile insurance reimbursements rates, was analyzed. RESULTS: Reimbursement rates between the two professions does not show significant difference in the mean reimbursement rate for patient copay, initial evaluation, manual/chiropractic manipulative therapy, neuromuscular re-education, traction, nor therapeutic exercise. Chiropractic cash-for-services are cheaper in initial evaluation, traction, and therapeutic exercise. Manual therapy and neuromuscular re-education cash for- service rates are cheaper in physical therapy compared to chiropractic clinics. Automobile insurance companies also reimburse more in both physical therapy and chiropractic clinics when compared to non-automobile insurance companies. DISCUSSION: The large difference in chiropractic and physical therapy reimbursement rates for the initial evaluation is due to the (3) chiropractic clinics provided rates for initial evaluations that do not take as long as physical therapy. Therefore, the cost is cheaper, but the time spent with patient is not as much as physical therapy.
Show less - Date Issued
- 2013-04-21
- Identifier
- fgcu_ETD_0494
- Format
- Document (PDF)
- Title
- A comparison of a web-based and a traditional face-to-face off season training program for Division.
- Creator
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Spencer, Ashley Cecil
- Abstract / Description
-
Objective; To examine two methods for implementing summer off season training programs for college softball players. Design: Non equivalent pre test - post test Setting: On and Off Campus training facilities. Subjects: A non probability convenience sample of 25 subjects was assigned to two groups and one control group. The exclusion criteria were: injury and athletes under the age of eighteen. Interventions: Group W.B. was made up of players who were away from campus during the break; this...
Show moreObjective; To examine two methods for implementing summer off season training programs for college softball players. Design: Non equivalent pre test - post test Setting: On and Off Campus training facilities. Subjects: A non probability convenience sample of 25 subjects was assigned to two groups and one control group. The exclusion criteria were: injury and athletes under the age of eighteen. Interventions: Group W.B. was made up of players who were away from campus during the break; this group participated in a web-based summer off season training program. Group F. F. included the athletes who remained locally or on campus and participated in a more traditional face-to-face summer off season training program. Group 3 were the athletes that participated in the testing, but did not complete the 12 week summer program (Control Group). Main outcome measure: 1 RM bench press and back squat were used to assess muscular strength. The vertical jump, 1 RM hang clean and push press were used to assess power. The one minute sit-ups and push-ups were used to assess muscular endurance. The T -test and 20 yard agility drill measured agility.The 20 and 60 yard sprint were used to measure speed. Flexibility was measured· with the sit and reach. The two-site skin folds were used for body composition. Anaerobic and aerobic capacity was measured with the 300 Yard Shuttle and 1.5 mile run, respectively. The following anthropometry measurements were also taken: weight, height, and resting heart rate. Results: Given the small sample size and large number of variables, the analysis (MANOVA) was not statistically significant. Therefore, descriptive statistics (crosstabs/frequency counts) were analyzed. When comparing the descriptive statistics the hypothesis that there would be a larger increase in the face-to-face group was only supported for the muscular performance tests. Conclusions: The utilization of the internet appeared to be a useful tool in the delivery of summer training programs. Future research should expand this study to larger samples and other sports or a study on delivery methods of home exercise programs.
Show less - Date Issued
- 2008
- Identifier
- fgcu_ETD_0454
- Format
- Document (PDF)
- Title
- A Comparison of Fish Community Structure Over Time 1970-2013 In a Southwest Florida Estuarine System.
- Creator
-
Wilkie, Steven
- Abstract / Description
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Southwest Florida has experienced a significant increase in population since the 1960's. The increase in population has resulted in significant changes to the natural landscape and local watersheds. This study represents a long term evaluation of the fish community structure within local estuary waters between 1970 and 2013. The study takes place in the waters of Rookery Bay National Estuarine Research Reserve. The reserve was established in 1977, but prior to that a 2 year trawl study was...
Show moreSouthwest Florida has experienced a significant increase in population since the 1960's. The increase in population has resulted in significant changes to the natural landscape and local watersheds. This study represents a long term evaluation of the fish community structure within local estuary waters between 1970 and 2013. The study takes place in the waters of Rookery Bay National Estuarine Research Reserve. The reserve was established in 1977, but prior to that a 2 year trawl study was conducted in the waters that would eventually become part of the research reserve. The original study conducted between 1970-1972 provided the methodology to support replicate studies in 20 year increments 1990-1991 and again in 2011-2013. Since the original study a water control structure was constructed immediately upstream from the study location. This manuscript analyzes the fish community data in all three studies to identify potential changes that have occurred over a forty year time period that may be related to the anthropogenic alteration of the local watershed. Non-Parametric and parametric analyses were used to to compare the community structure of the three study periods. Results indicate that changes in community structure are most pronounced in the wet season and have a higher potential difference in community structure in sample sites closest to the upstream alteration of the watershed. Efforts to identify potential factors that contributed to the change in community structure centered around salinity, temperature, and changes in available habitat. Changes in the salinity profile of the estuarine system over time, increased water temperature and potential differences in habitat availability may have contributed to the overall changes of the community structure over the last forty years.
Show less - Date Issued
- 2018-04-28
- Identifier
- fgcu_ETD_0232
- Format
- Document (PDF)
- Title
- A high-resolution molecular method for identification of smalltooth sawfish prey.
- Creator
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Hancock, Taylor Lee
- Abstract / Description
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The foundation of food web analysis is a solid understanding of predator-prey associations. Traditional dietary studies of fishes have been by stomach content analysis. However, these methods are not applicable to Critically Endangered species such as the smalltooth sawfish (Pristis pectinata). Previous research using the combination of stable isotope signatures from fin clips and 18S rRNA gene sequencing of fecal samples identified the smalltooth sawfish as piscivorous at high taxonomic...
Show moreThe foundation of food web analysis is a solid understanding of predator-prey associations. Traditional dietary studies of fishes have been by stomach content analysis. However, these methods are not applicable to Critically Endangered species such as the smalltooth sawfish (Pristis pectinata). Previous research using the combination of stable isotope signatures from fin clips and 18S rRNA gene sequencing of fecal samples identified the smalltooth sawfish as piscivorous at high taxonomic levels. Here, we present a high taxonomic resolution molecular technique for identification of prey using opportunistically acquired fecal samples. To assess potential biases, primer sets of two mitochondrial genes, 12S and 16S rRNA, were used alongside 18S rRNA, which targets a wider spectrum of taxa. In total, 19 fish species, from 7 orders and 11 families, native to the Gulf of Mexico were successfully identified, including one ray, the southern stingray (Dasyatis americana). Silver perch (Bairdiella chrysoura), bay anchovy (Anchoa mitchilli), tidewater mojarra (Eucinostomus harengulus), spotted seatrout (Cynoscion nebulosus), ladyfish (Elops saurus), and spot (Leiostomus xanthurus) were most prevalent in our analysis. The sawfish prey identified comprised diverse taxa, indicating that this species is a generalist piscivore. These findings and the molecular approach used will aid recovery planning for the smalltooth sawfish and has the potential to reveal previously unknown predator-prey associations from a wide range of taxa, being specifically desirable for use with rare and hard to sample species.
Show less - Date Issued
- 2019-06-05
- Identifier
- fgcu_ETD_0296
- Format
- Document (PDF)
- Title
- A noninvasive method to collect Florida panther hairs for DNA analysis.
- Creator
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Cole-Corde, Aleczandre Nikoluas
- Abstract / Description
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The major goal of this study was to investigate whether hair could be collected by hair snares attached to scent posts from free-ranging Florida panthers (Puma concolor coryi) to determine species identity using DNA analyses of the hair samples. The five phases of the study are summarized below. For Phase 1, methods were developed and tested on captive animals with the intention of transitioning the effective methods to the field. In Component 1 of Phase 1, scent preferences of captive...
Show moreThe major goal of this study was to investigate whether hair could be collected by hair snares attached to scent posts from free-ranging Florida panthers (Puma concolor coryi) to determine species identity using DNA analyses of the hair samples. The five phases of the study are summarized below. For Phase 1, methods were developed and tested on captive animals with the intention of transitioning the effective methods to the field. In Component 1 of Phase 1, scent preferences of captive Western cougars (Puma concolor stanleyana) were established in the Naples Zoo (Naples, Florida) where the cougars' reactions to various scents could be monitored closely. Four of26 tested scents attracted captive cougars in an initial pilot study. In 30 experimental trials, Bag Balm and Beaver Lure with Catnip were identified as the two most attractive scents stimulating rubbing response rates of93% and 67% respectively. In Component 2 of Phase 1, hair snares effective for collecting hair for DNA analysis were developed using captive Western cougars as test subjects in the Naples Zoo where behavioral interactions to snares associated with scent stations could be observed closely. Three types of hair snares were tested; a circular wire cup brush, a three-ring curry comb and a rectangle wire brush. The circular wire cup, most effective at capturing and retaining cougar hairs, collected 600 hairs, 75 of them with follicles attached. For Phase 2, scent stations (i.e., posts equipped with scent attractants and circular wire cup snares) based on prototypes developed at the Naples Zoo, were field tested on free-ranging Florida panthers in the U.S. Fish and Wildlife Service's Florida Panther National Wildlife Refuge (FPNWR) (Collier County Florida). A total of 72 hairs were collected from 12 scent stations in two separate trials. Scent stations were monitored with trip-motion 35 mm cameras. A total of 10 photographs documented free-ranging Florida panthers in the vicinity of scent stations and only one photograph recorded a panther directly interacting with a scent station. For Phase 3, hairs collected were analyzed in the lab. In Component 1 of Phase 3, hairs collected in hair snares in the FPNWR were visually examined for species identification. Twelve of 72 hairs were identified as black bear (Ursus americanus) and the species identity of the remaining 60 hairs was ambiguous. In Component 2 of Phase 3, hair collected at both the Naples Zoo and the FPNWR were analyzed to determine whether species identity could be confirmed using DNA analyses. A 215bp fragment of the 12S ribosomal DNA (rDNA) was amplified in 47 of 137 (34%) captive Western cougar hairs and in 20 of 60 hairs collected in the FPNWR. Sequences were obtained from four of the amplification products from captive Western cougar hairs, and as expected, all were identified as Puma concolor. Sequence data were successfully obtained from 20 hairs collected in the FPNWR; 17 hairs were identified as Puma concolor, one hair was identified as Ursus americanus, one hair was identified as Homo sapiens likely due to researcher contamination, and species identity in one hair was inconclusive due to insufficient DNA for identification. The 17 hairs identified as Puma concolor were independent sampling events collected from seven different scent stations on nine different collection dates. Based on the results of this study, scent stations equipped with the appropriate scents and hair snares can be used to collect hair with sufficient DNA from free-ranging and highly secretive Florida panthers under field conditions to obtain species identifications using DNA analyses. These are the first steps towards successfully amplifying nuclear DNA (e.g., as microsatellite DNA) and genetic identification of individual free-ranging Florida panthers. DNA was successfully extracted and fragments up to 215bp were amplified from hairs collected under field conditions in Florida. Thus, with some slight modifications, this inexpensive method may be used as a valuable addition or even an alternative to the invasive methods that wildlife managers currently undertake to collect genetic information from free-ranging panthers in Florida as well as other felid species from around the world.
Show less - Date Issued
- 2010
- Identifier
- fgcu_ETD_0485
- Format
- Document (PDF)
- Title
- A Reconstruction of Past Intense Hurricane Landfalls in Estero Bay Utilizing Back-Barrier Lagoonal Sediments.
- Creator
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Culligan, Nicholas
- Abstract / Description
-
As hurricanes are one of nature’s most destructive forces, patterns in the recurrence intervals of intense hurricane landfalls are important to understand. Unfortunately, the modern instrumental record exists only as far back as 1860, which does not allow for geologically long-term hurricane trends to be studied. Paleotempestology is the study of ancient hurricane by means of sediment proxies, which allows for the hurricane record to be extended to before the modern record. Utilizing sediment...
Show moreAs hurricanes are one of nature’s most destructive forces, patterns in the recurrence intervals of intense hurricane landfalls are important to understand. Unfortunately, the modern instrumental record exists only as far back as 1860, which does not allow for geologically long-term hurricane trends to be studied. Paleotempestology is the study of ancient hurricane by means of sediment proxies, which allows for the hurricane record to be extended to before the modern record. Utilizing sediment cores that contain hurricane overwash layers (tempestites), the occurrence of hurricanes can be confirmed using moisture content, inorganic content, grain size analysis, and radiometric dating. Estero Bay is in a hurricane prone and extremely populated area. The recurrence interval for catastrophic hurricanes and the strength of the storm surge of hurricanes in this area is important to determine. This study utilizes paleotempestology to extend the hurricane record of Estero Bay and create a timeline for catastrophic hurricanes that have made landfall here. Additionally, this study serves to create a comprehensive guide to tempestite types found in Estero Bay and Southwest Florida. Hurricane Irma also occurred during the study period which allowed for the unique opportunity to study the tempestite deposition from a hurricane in which all parameters are known. Four confirmed tempestites from two sites ranging in age from 60-2000 years before present (YBP) were identified and classified. Additionally, characteristics and long-term trends of Estero Bay back-barrier lagoons were determined. This study is only the second paleotempestology study in Southwest Florida and the first which investigates an area that directly affects tens of thousands of people.
Show less - Date Issued
- 2018-08-24
- Identifier
- fgcu_ETD_0259
- Format
- Document (PDF)
- Title
- A study of urinary incontinence curricula content in entry-level physical therapy programs in the United States recognized by the commission on accreditation in physical therapy education.
- Creator
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Laatsch, Kimberly Ann, Marieb College of Health & Human Services
- Abstract / Description
-
Urinary incontinence (UI) is currently a major, under-reported and costly health issue that is becoming more prevalent as the United States population continues to age. Studies have shown that physical therapists have a role in treating UI. The purpose of this study was to (1) determine the amount and type of UI curricula content instruction in entry-level physical therapy programs and (2) investigate some of the underlying factors that may relate to the UI curricula. Participants were the...
Show moreUrinary incontinence (UI) is currently a major, under-reported and costly health issue that is becoming more prevalent as the United States population continues to age. Studies have shown that physical therapists have a role in treating UI. The purpose of this study was to (1) determine the amount and type of UI curricula content instruction in entry-level physical therapy programs and (2) investigate some of the underlying factors that may relate to the UI curricula. Participants were the primary faculty member teaching UI curricular content at the 201 physical therapist professional degree programs in the United States recognized by the Commission on Accreditation in Physical Therapy (CAPTE). The web-based survey documented institutional demographics, faculty education and attitudes, UI curricular content and instruction methods, and faculty assessment of the UI curricula. Of the programs surveyed for this descriptive study (n = 201), 54 programs (27%) completed the questionnaire. The study found a moderate relationship (r = .451) between the amount of faculty specialized training in UI and the amount of UI curricular content. A similar correlation (r = .433) occurred between the subjects view of the role of the PT in evaluation and intervention in the area of UI and the actual time spent in UI instruction. A strong relationship (r = .825) was found between the amount of UI specialized training and the confidence to teach the subject. The study's results provide an avenue for the assessment of current PT progran1s' UI curricula in relation to the reported aggregate. Results may encourage research that would compare how recent graduates of these programs evaluate the UI instruction they received with the responses in this research study.
Show less - Date Issued
- 2008-04-21
- Identifier
- fgcu_ETD_0500
- Format
- Document (PDF)
- Title
- ABIOTIC INFLUENCES ON AND COMMUNITY DYNAMICS OF BENTHIC DINOFLAGELLATE SPECIES IN THE FLORIDA KEYS.
- Creator
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Schroeder, Jessica Elizabeth
- Abstract / Description
-
Gambierdiscus is an epibenthic dinoflagellate genus containing some species that produce a toxin (ciguatoxin), which causes Ciguatera Fish Poisoning (CFP). These dinoflagellates live on macrophytes that are consumed by herbivorous fish and invertebrates, thereby introducing ciguatoxin into the reef food web through bioaccumulation and biomagnification processes. Such grazers are later predated on by larger fish, which when consumed by people, can lead to CFP. Other dinoflagellates coexist...
Show moreGambierdiscus is an epibenthic dinoflagellate genus containing some species that produce a toxin (ciguatoxin), which causes Ciguatera Fish Poisoning (CFP). These dinoflagellates live on macrophytes that are consumed by herbivorous fish and invertebrates, thereby introducing ciguatoxin into the reef food web through bioaccumulation and biomagnification processes. Such grazers are later predated on by larger fish, which when consumed by people, can lead to CFP. Other dinoflagellates coexist with Gambierdiscus spp., including potentially toxigenic Prorocentrum and Ostreopsis spp. The research presented here focuses on the community ecology of Gambierdiscus spp. and these other dinoflagellates, and the abiotic factors that affect their distribution, abundance, and compositions. New findings in this project have provided information about community dynamics and the influence of abiotic factors. The data suggest that physical and chemical parameters influence dinoflagellate densities and the differences in site community composition. These epibenthic dinoflagellates thrive in high temperatures but may compete in other environmental conditions. The three dinoflagellates were more abundant in the Florida Bay than Atlantic Ocean sites. The three dinoflagellates coexist, but there were no differences in abundances seasonally and between sites, suggesting subtle niche partitioning may be taking place.
Show less - Date Issued
- 2020-05-27
- Identifier
- fgcu_ETD_0337
- Format
- Document (PDF)
- Title
- Acute Response of the Estuarine Crab Eurypanopeus Depressus to Salinity and Desiccation Stress.
- Creator
-
Van Horn, Julie
- Abstract / Description
-
An understanding of how organisms survive in oyster-reef habitat gives clues as to how they will respond to watershed alterations caused by humans. All estuarine environments experience natural salinity fluctuations, but anthropogenic activities have seriously altered salinity regimes in many areas. The changing tide in the shallow environment of the oyster reef means inhabitants risk exposure and desiccation, yet the reefs support rich communities. Population distribution, osmoregulatory and...
Show moreAn understanding of how organisms survive in oyster-reef habitat gives clues as to how they will respond to watershed alterations caused by humans. All estuarine environments experience natural salinity fluctuations, but anthropogenic activities have seriously altered salinity regimes in many areas. The changing tide in the shallow environment of the oyster reef means inhabitants risk exposure and desiccation, yet the reefs support rich communities. Population distribution, osmoregulatory and desiccation physiology and a generic basis for tolerance of extreme environments were investigated in the flatback mud crab Eurypanopeus depressus, a dominant species on oyster reefs in Southwest Florida. An analysis of abundance, biomass and size along a salinity gradient showed that although this species can survive extreme salinities, it is most common in moderate environments. In laboratory experiments, E. depressus hyper-osmoregulated in dilute salinities and conformed in concentrated salinities, achieving stable haemolymph osmotic concentration in less than 24 h. Water loss tolerance and the effect of desiccation on osmoregulatory abilities were also investigated. Eurypanopeus depressus, displayed average tolerance to water loss compared with other crustaceans and does not appear to be able to osmoregulate in air. Also, two distinct partial gene sequences from the peroxiredoxin antioxidant enzyme family were cloned from E. depressus. One of the cloned sequences is 465 bp in length and exhibits over 80% sequence homology with peroxiredoxins found in other arthropods and mammals. With further refinement of extraction techniques, peroxiredoxin gene expression in this intertidal crab could be used as a biomarker reflecting stress caused by environmental conditions.
Show less - Date Issued
- 2007
- Identifier
- fgcu_ETD_0417
- Format
- Document (PDF)
- Title
- American Green Caviar: Analysis of sea grape algae (Caulerpa racemosa var. peltata) for bio-filtration and valuable co-production.
- Creator
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Gamel, Matt, College of Arts & Sciences
- Abstract / Description
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Rising global demand for seafood and declining catches have resulted in the volume of mariculture doubling each decade. The FAO (Food and Agriculture Organization of the United Nations) expects such a growth to persist in the years to come. This exponential growth has created a subsequent need to find alternative solutions to wastewater generation. The use of marine algae as bio-filters for aquaculture wastewater treatment has been shown to be an efficient and cost effective strategy. For...
Show moreRising global demand for seafood and declining catches have resulted in the volume of mariculture doubling each decade. The FAO (Food and Agriculture Organization of the United Nations) expects such a growth to persist in the years to come. This exponential growth has created a subsequent need to find alternative solutions to wastewater generation. The use of marine algae as bio-filters for aquaculture wastewater treatment has been shown to be an efficient and cost effective strategy. For this study, I selected Caulerpa racemosa (commonly known as sea grape algae) as a potential bio-filtration candidate for the mitigation of aquaculture effluent. Sea grapes are highly valued in Asian and South-Pacific cuisine, where they are referred to as green caviar. They are also high in omega-3 fatty acids and antioxidants, representing a possible new marketing angle as a “super food.” This alga has been largely excluded from western markets, as the Pacific varieties are known invasives in the Atlantic basin. For this reason, I decided to utilize the native Floridian variety, which is poorly researched, despite being present throughout the Caribbean and parts of South America. For my study, I conducted laboratory growth trials to determine optimal conditions for both irradiance and nutrient concentrations. Floridian C. racemosa was found to be highly adaptable to a wide range of irradiance and nutrient regimes, with nutrient uptake efficiency greater than 90%. A clear set of optimal parameters could not be defined, however, as the treatment results were not significantly different. This finding demonstrates the high adaptability and resilience of this species. For the final trials, I constructed a 1500-L outdoor recirculating aquaculture system, raising juvenile pinfish (Lagodon rhomboides). The setup was designed to serve as a proof of concept, to test how good C. racemosa performed outside of the laboratory. The study produced mixed results, but found that a 4:1 fish to seaweed wet weight ratio was ideal in maintaining stable nutrient levels. Overall, the results designate C. racemosa as a strong candidate for commercial bio-filtration, and as a possible cash crop for the domestic sushi and algal supplement industries.
Show less - Date Issued
- 2017
- Identifier
- Gamel_fgcu_1743_10258
- Format
- Document (PDF)
- Title
- An Agent Based Model to Evaluate Spatio-Temporal Variability in Oyster Reef Connectivity in the Charlotte Harbor Estuarine System, Florida.
- Creator
-
Bass, Dye
- Abstract / Description
-
Various physical and biological factors influence the larval dispersal and connectivity of benthic species. Physical processes are the primary driver of larval transport, however biological processes have been found to play an important role as well. In this study, we developed and coupled a 2-D hydrodynamic model with an agent-based model to study Crassostrea virginica, oyster larval transport within the Charlotte Harbor estuarine system in southwest Florida. Freshwater flow entering into...
Show moreVarious physical and biological factors influence the larval dispersal and connectivity of benthic species. Physical processes are the primary driver of larval transport, however biological processes have been found to play an important role as well. In this study, we developed and coupled a 2-D hydrodynamic model with an agent-based model to study Crassostrea virginica, oyster larval transport within the Charlotte Harbor estuarine system in southwest Florida. Freshwater flow entering into the southern region of the system, the Caloosahatchee River Estuary, is highly controlled by a series of lock and dams. As a result, considerable interannual variability exists in the amount of freshwater entering the Caloosahatchee River Estuary and this has been identified as a key stressor to the estuary’s oyster population. Oyster spawning in the estuary occurs throughout the wet season months (June-Oct.). Therefore, model simulations were performed during wet season periods of low, moderate, and high freshwater flow into the estuary to determine the impacts varying flows impose on larval transport and settlement in terms of success and connectivity between oyster reefs. The agent-based model was validated using oyster larval settlement data collected throughout a long-term, 2000-2016 study. The model was able to simulate settlement patterns during periods of low freshwater release which ultimately provided insight into the importance of the furthest upstream oyster reef as a larval source to the downstream reefs.
Show less - Date Issued
- 2018-08-23
- Identifier
- fgcu_ETD_0254
- Format
- Document (PDF)
- Title
- An analysis of the predictive validity of the FCAT success probability of the Florida assessments of instruction in reading.
- Creator
-
Clark, Mason M.
- Abstract / Description
-
In this paper, the researcher explored published evidence of predictive validity for the Florida Assessments of Instruction in Reading (FAlR) as it pertains to subsequent proficiency on the Florida Comprehensive Assessment Test (FCAT) in reading for middle school students within the pm1icipating school district. The Florida Center for Reading Research (FCRR) (2009) has published moderate correlations between the risk status designation of the FAIR and subsequent FCAT reading proficiency. This...
Show moreIn this paper, the researcher explored published evidence of predictive validity for the Florida Assessments of Instruction in Reading (FAlR) as it pertains to subsequent proficiency on the Florida Comprehensive Assessment Test (FCAT) in reading for middle school students within the pm1icipating school district. The Florida Center for Reading Research (FCRR) (2009) has published moderate correlations between the risk status designation of the FAIR and subsequent FCAT reading proficiency. This study examined that relationship with a large (n=8477) sample of middle school students within one school district. Analysis with logistic regression identified a significant. predictive relationship for students within the sample. Additionally. the researcher performed linear regression analyses on the FCAT Success Probability (FSP) metric of the FAIR and subsequent FCAT reading scale scores and identified a significant predictive relationship between FSP and FCAT reading scale scores. Combining a student's risk status and raw FSP may hold promise in increasing the predictive power of the FAIR. The researcher also recommends additional research into the change in risk status across assessment periods in order to quantify the effectiveness of classroom interventions and thereby better evaluate the predictive power of the FAIR.
Show less - Date Issued
- 2011
- Identifier
- fgcu_ETD_0457
- Format
- Document (PDF)
- Title
- An assessment of the potential for sustainable seafood practices in Southwest Florida.
- Creator
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Porter, Emily Susan
- Abstract / Description
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The environmental costs associated with seafood production are at an all-time high. Eighty percent of the world marine fish stocks, for which assessment information is available, are fully exploited, overexploited, or have already suffered a collapse (United Nations, 2010). Despite the issues associated with overfishing, seafood consumption continues to increase, and supply of certain species can no longer meet demand. According to SeafoodSource, a seafood market and research firm, two-thirds...
Show moreThe environmental costs associated with seafood production are at an all-time high. Eighty percent of the world marine fish stocks, for which assessment information is available, are fully exploited, overexploited, or have already suffered a collapse (United Nations, 2010). Despite the issues associated with overfishing, seafood consumption continues to increase, and supply of certain species can no longer meet demand. According to SeafoodSource, a seafood market and research firm, two-thirds of seafood are consumed in restaurants. Restaurant decision-makers (owners, chefs and managers) who are responsible for purchasing seafood, can therefore play an important role in mitigating the environmental impacts surrounding seafood production. The purpose of this exploratory study was to evaluate if southwest Florida restaurant decision-makers are making responsible, sustainable, seafood purchasing decisions. Forty-two decision-makers agreed to participate in the study. A combination of surveys and interviews were used to gather information. The goals of this research were to 1) determine if sustainable seafood practices are currently being used in southwest Florida restaurants; 2) identify decision-maker knowledge and attitudes toward sustainable seafood; 3) evaluate if educating decision-makers about sustainable seafood would change their purchasing habits; 4) determine motivating factors driving seafood selection and purchasing; 5) characterize the attitudes and awareness of decisionmakers about marine conservation; 6) evaluate decision-maker knowledge and sentiment related to seafood certifications, advisory lists and online purchasing options; and 7) determine decision-maker willingness to use sustainable seafood products. This study produced several major outcomes. Unsustainable fish species like Chilean sea bass, bluefin tuna and red snapper are being served in over 50% of the participating restaurants. Overall, decision-maker knowledge on sustainable seafood was limited. The majority of decision-makers did not make major changes in their purchasing habits even after being "educated" on the subject of sustainable seafood. Decisionmakers showed a disconnect between their own actions (serving unsustainable fish) and environmental consequences. Their knowledge of sustainable seafood certifications and advisory organizations was limited. The majority of decision-makers equate farm-raised fish as being sustainable. Restaurant owners know the least about sustainable seafood while chefs are the most knowledgeable. Chefs in fine dining and upscale restaurants know more about sustainable seafood than those in casual dining establishments. More education and awareness is needed throughout the restaurant industry in southwest Florida to effect any substantial change toward sustainable seafood practices.
Show less - Date Issued
- 2013
- Identifier
- fgcu_ETD_0520
- Format
- Document (PDF)
- Title
- An Examination of Grazing Preferences Exhibited by Herbivorous Invertebrates on the Common Macroalgal Hosts of Gambierdiscus.
- Creator
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James, Andrea Lynn
- Abstract / Description
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Understanding the basis of the marine food web is essential in determining the uptake and possible control of the toxins that cause ciguatera fish poisoning (CFP), predominantly ciguatoxins. Ciguatoxins are produced by the marine, epiphytic dinoflagellate Gambierdiscus, and when transferred through the food web via herbivory, have serious environmental and health implications. Ciguatera outbreaks are common in coral reef environments where macroalgae are present. As ocean conditions change...
Show moreUnderstanding the basis of the marine food web is essential in determining the uptake and possible control of the toxins that cause ciguatera fish poisoning (CFP), predominantly ciguatoxins. Ciguatoxins are produced by the marine, epiphytic dinoflagellate Gambierdiscus, and when transferred through the food web via herbivory, have serious environmental and health implications. Ciguatera outbreaks are common in coral reef environments where macroalgae are present. As ocean conditions change and more coral reef ecosystems shift to macroalgal domination, the risk of ciguatera outbreaks may increase. Since the first discovery of causal agents for CFP, the general consensus has been that the ciguatoxin pathway goes through herbivorous fish; however, some previous studies have suggested that herbivorous invertebrates may be another vector. Because hogfish have been found to be one of the high-risk fish species for CFP, and they are also known to consume invertebrates, more studies are necessary in order to accurately evaluate the invertebrate role as a vector. Therefore, the purpose of this study was to determine the grazing preferences of various herbivorous invertebrates on the common macroalgal hosts of Gambierdiscus, in order to examine the uptake of ciguatoxin into the food web. Four marine macroalgae were tested (Laurencia gemmifera, Halimeda incrassata, Dictyota menstrualis, and turf algae) against three different taxa ((Cerithium (Thericium) eburneum algicola (var.) (middle-spined cerith gastropods), Clibanarius tricolor (three-colored hermit crabs), and Lytechinus variegatus (variegated sea urchins)) of herbivorous invertebrates. Consumption rates were determined from changes in algal biomass. Direct G. silvae consumption rates were also determined for one species of invertebrate in a supplemental study. The experimental results indicated that there was a significant food preference for turf algae among all three species tested. There was also a significant food preference for Dictyota menstrualis for two of the species tested and Laurencia gemmifera for the other species tested (sea urchin). These results of this study have expanded our knowledge on herbivore feeding preferences and toxin uptake, which may lead to a better understanding of this crucial step in the introduction of ciguatoxin into the reef food web.
Show less - Date Issued
- 2020-06-04
- Identifier
- fgcu_ETD_0341
- Format
- Document (PDF)
- Title
- Analysis of the university colloquium : developing students' ecological perspectives.
- Creator
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Phillips, Jessica D.
- Abstract / Description
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This study focuses on Florida Gulf Coast University's required undergraduate interdisciplinary course on sustainability, IDS 3920 University Colloquium, and how this program impacts the development of students' ecological perspectives. To measure the change in students' ecological perspectives the New Ecological Paradigm Scale (NEP) was given in a pre- and post-course survey format. Students' NEP scores or ecological perspectives were then compared to the results from a professor post-course...
Show moreThis study focuses on Florida Gulf Coast University's required undergraduate interdisciplinary course on sustainability, IDS 3920 University Colloquium, and how this program impacts the development of students' ecological perspectives. To measure the change in students' ecological perspectives the New Ecological Paradigm Scale (NEP) was given in a pre- and post-course survey format. Students' NEP scores or ecological perspectives were then compared to the results from a professor post-course survey that assessed professors ' backgrounds and the pedagogical strategies they applied in teaching of the University Colloquium course. While the University Colloquium was found to be effective for a majority of students, a sizable minority of student outcomes on the NEP survey indicated a decrease in their ecological perspectives. Although statistical significance was not determined for the remainder of the results due to small san1ple sizes, there were indications of some trends. For instance, students in science fields had overall higher pre- and post-course survey scores while students from non-science fields had overall higher gains. Trends also implied that students whose professors had more experience teaching the course, were from a field other than science, were considered a part-time professor, and spent less class time outdoors had higher gains. Two different teaching pedagogies were also indicated among participating professors and trends implied that students whose professors valued group projects, among other course components, had higher gains. The results from this study, along with continued research, may help influence the University Colloquium curriculum design to enhance achievement of the course objectives of developing student's ecological perspectives and awareness of the natural world.
Show less - Date Issued
- 2010
- Identifier
- fgcu_ETD_0453
- Format
- Document (PDF)
- Title
- Annual soil respiration and net ecosystem productivity of three mangrove forests on Sanibel Island, Florida.
- Creator
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Cartwright, Falon B.
- Abstract / Description
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The goal of this research was to address this need within and between different mangrove forest ecosystems. This study was conducted on Sanibel Island, Florida in three distinct mangrove habitat types characterized by dominant species composition and hydrology. Within each habitat type, annual soil respiration, and aboveground and belowground productivity were estimated from field-based measurements. Chapter 2 presents the results of the yearlong soil respiration research. In chapter 3,...
Show moreThe goal of this research was to address this need within and between different mangrove forest ecosystems. This study was conducted on Sanibel Island, Florida in three distinct mangrove habitat types characterized by dominant species composition and hydrology. Within each habitat type, annual soil respiration, and aboveground and belowground productivity were estimated from field-based measurements. Chapter 2 presents the results of the yearlong soil respiration research. In chapter 3, annual estimates of soil respiration, from Chapter 2 are combined with aboveground and belowground productivity from the same locations to compute annual ecosystem carbon budgets and net ecosystem productivity for each habitat. Chapter four is a synthesis and summary of the findings from both Chapter 2 and 3.
Show less - Date Issued
- 2012
- Identifier
- fgcu_ETD_0474
- Format
- Document (PDF)
- Title
- Anuran use of natural wetlands, created pools, and existing canals within the Picayune Strand Restoration Project.
- Creator
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Dixon, Alicia D.
- Abstract / Description
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The Picayune Strand Restoration Project (Picayune) is a major hydrologic/habitat restoration project that is being conducted as part of the Comprehensive Everglades Restoration Plan. This study was designed to evaluate the success of the restoration activities within the Picayune by obtaining and analyzing anuran species richness and relative abundance in relation to various restoration phases. The restoration phases included two "treatments" (i.e., restored canal and un-restored canal) and a...
Show moreThe Picayune Strand Restoration Project (Picayune) is a major hydrologic/habitat restoration project that is being conducted as part of the Comprehensive Everglades Restoration Plan. This study was designed to evaluate the success of the restoration activities within the Picayune by obtaining and analyzing anuran species richness and relative abundance in relation to various restoration phases. The restoration phases included two "treatments" (i.e., restored canal and un-restored canal) and a "reference" (i.e., natural wetland depression). Anuran observations were conducted using nocturnal audible call surveys, polyvinyl chloride pipe refugia sampling, and dip netting. Based upon the audible call sampling and dip netting, the results indicated that the lowest species richness and relative abundance values occurred within the un-restored canal, then there was an increase in the restored canal, and highest values were in the natural wetlands. Also, the audible call sampling showed distinct groupings and similarities of anurans within each restoration phases and also identified significant differences in the distribution of anuran species relative to the different restoration phases. Specifically, Gastrophryne carolinensis, Hyla femora/is, and Rana sphenocephala were only documented in the natural and restored areas and Hyla cinerea and Hyla squirella preferred the natural areas the most followed by the restored areas; therefore, they appear to be "indicator species" of restoration success. These findings serve as an implication that the restoration activities within the Picayune are effective and that anurans are biological indicators of restoration success.
Show less - Date Issued
- 2009-10
- Identifier
- fgcu_ETD_0427
- Format
- Document (PDF)
- Title
- Assessing the benefits of environmental education and its impact on environmental literacy among exiting fifth graders across economic and participation spectrum of lee couny public schools.
- Creator
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Davis, Sarah West
- Abstract / Description
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For over forty years, Lee County Environmental Education (EE) program has been teaching children and teachers-sharing nature with students of all ages through classroom programs, field trips, teacher trainings and special programs. At the same time in our culture we are seeing increases in childhood obesity, attention deficit disorders and depression. Children spend less time outside, watch more television, play digital games and are developing a great fear of nature and the outdoor world,...
Show moreFor over forty years, Lee County Environmental Education (EE) program has been teaching children and teachers-sharing nature with students of all ages through classroom programs, field trips, teacher trainings and special programs. At the same time in our culture we are seeing increases in childhood obesity, attention deficit disorders and depression. Children spend less time outside, watch more television, play digital games and are developing a great fear of nature and the outdoor world, what Richard Louv (2005) refers to as "Nature-Deficit Disorder". Lee County was one of the first school districts in the nation to develop an integrated environmental education framed K-12 curriculum continuum and instructional program for illustrating the main concepts, ideas and values that children should have a grasp on for each grade level and subject area. This study examines the degree of participation in the Lee County Environmental Education Program and its impact on developing environmental literacy of exiting fifth-grade students from six different schools; the study was only able to assess knowledge and field trip experiences. The schools represented high and low participation in the EE program and were from different socio-economic levels. Students took home a survey asking them questions about their environmental knowledge and their experiences on field trips. Out of the 744 surveys distributed, 305 were returned (41% return rate). The knowledge portion of the survey was adapted from the Children's Environmental and Knowledge Scale (CHEAKS) developed by Leeming Dwyer and Bracken (1995). Contrary to what was expected, there was no significant difference among high and low EE participation groups. Lower participation groups scored higher on the knowledge, but had reported attending additional environmental trips outside of the EE program. While children may develop some basic understanding of nature through schooling, experiences in nature assist them in developing their attitudes and personality in relation to nature and this has a much greater influence on them than just basic knowledge. Consistent with current research, significant differences were found among socioeconomic levels (p=0.022), higher socio-economic schools scored higher on the environmental knowledge instrument. Overwhelmingly positive attitudes and behaviors were reflected in the responses to field trip experience questions. Adding to the body of environmental education research, this study reveals evidence of the benefits of environmental education and demonstrates that environmental education is a vital core of K-12 education.
Show less - Date Issued
- 2007
- Identifier
- fgcu_ETD_0452
- Format
- Document (PDF)
