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Title: Classification and evaluation of coastal water resources.
Creator: Naya, Albert, Florida Atlantic University, Finkl, Charles W.
Abstract/Description: Water Resources (WR) agencies have recently shifted to holistic management approaches that combine the use of watersheds and ecoregions as complimentary tools. However, the classification of data is based on land used and land cover detection. In contrast, this research is concerned with inferring WR quality from the landscape using satellite imagery and aerial photography combined with collateral data. To conduct the study, three major procedures were devised: (1) construction of a...
Show moreWater Resources (WR) agencies have recently shifted to holistic management approaches that combine the use of watersheds and ecoregions as complimentary tools. However, the classification of data is based on land used and land cover detection. In contrast, this research is concerned with inferring WR quality from the landscape using satellite imagery and aerial photography combined with collateral data. To conduct the study, three major procedures were devised: (1) construction of a classification system for regional coastal WR, (2) delineation of WR units based on the interpretation of water quality parameters (e.g. land use/cover, soil, vegetation, etc.), and (3) development and implementation of a water quality rating system. The results showed that this technique can be utilized effectively to monitor WR. The distribution of beneficial water quality was correlated with anthopogenic activities and modifications. Temporal events such as sea surface temperature had a short, but detrimental impact on water quality.
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Date Issued: 1999
PURL: http://purl.flvc.org/fcla/dt/15655
Subject Headings: Water resources development, Coastal zone management, Water quality
Format: Document (PDF)

Title: An evaluation of the certainty of system performance measures generated by the South Florida Water Management Model.
Creator: Trimble, Paul Joseph., Florida Atlantic University, Scarlatos, Panagiotis (Pete) D., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: The South Florida Water Management Model was developed to evaluate proposed alternatives for the south Florida regional hydrologic system. The degree of certainty of the computed system performance measures is required to correctly apply these measures for evaluation and selection of appropriate water resources policies and investments. Initially, a sensitivity matrix is defined which summarizes the model output sensitivity to incremental changes of key parameters. The method of singular...
Show moreThe South Florida Water Management Model was developed to evaluate proposed alternatives for the south Florida regional hydrologic system. The degree of certainty of the computed system performance measures is required to correctly apply these measures for evaluation and selection of appropriate water resources policies and investments. Initially, a sensitivity matrix is defined which summarizes the model output sensitivity to incremental changes of key parameters. The method of singular value decomposition is applied to the sensitivity matrix to better understand relations between parameters and output variables. Finally, parameter uncertainty is compared to that of total predictive uncertainty of the system performance measures.
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Date Issued: 1995
PURL: http://purl.flvc.org/fcla/dt/15200
Subject Headings: Hydrologic models, Water conservation--Florida, Water supply--Florida, Water quality management--Florida, South Florida Water Management District
Format: Document (PDF)

Title: A New Sterol Sulfate, Sch 572423, from a Marine Sponge, Topsentia sp.
Creator: Yang, Shu-Wei, Buevich, Alexei, Chan, Tze-Ming, Smith, Michelle, Lachowicz, Jean, Pomponi, Shirley A., Wright, Amy E., Mierzwa, Ronald, Patel, Mahesh, Gullo, Vincent, Chu, Min
Date Issued: 2003
PURL: http://purl.flvc.org/FCLA/DT/2827816
Subject Headings: Water quality bioassay, Water --Pollution --Toxicology, Sponges, Marine ecosystem management, Filters and filtration
Format: Document (PDF)

Title: Distribution and migration of pesticide residues in mosquito control impoundments St. Lucie County, Florida, USA.
Creator: Parkinson, R. W., Wang, Tsen C., White, J. R., David, J. R., Hoffman, M. E., Harbor Branch Oceanographic Institute
Date Issued: 1993
PURL: http://purl.flvc.org/FCLA/DT/3318877
Subject Headings: Mosquitoes --Control --Florida, Pesticides --Environmental aspects --Florida, Water quality --Florida --Saint Lucie County, Water quality management --Florida
Format: Document (PDF)

Title: The ascidian Styela plicata as a potential bioremediator of bacterial and algal contamination of marine estuarine waters.
Creator: Draughon, Lisa D., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: The tunicate Styela plicata (Ascidiacea) was investigated for its potential use in bioremediation of bacteria and microalgae blooms from estuarine waters. Salinity tolerances, filtration rate, substrate selection, and effects on digested bacteria and ichthyofaunal communities were examined. If acclimated slowly, Styela can be placed in salinities as low as 24 parts per thousand (ppt) before increased fatalities result. An immediate decrease in salinity from 32 ppt to 20 ppt was not...
Show moreThe tunicate Styela plicata (Ascidiacea) was investigated for its potential use in bioremediation of bacteria and microalgae blooms from estuarine waters. Salinity tolerances, filtration rate, substrate selection, and effects on digested bacteria and ichthyofaunal communities were examined. If acclimated slowly, Styela can be placed in salinities as low as 24 parts per thousand (ppt) before increased fatalities result. An immediate decrease in salinity from 32 ppt to 20 ppt was not detrimental at short term exposure (four days). One average-sized (~40g) Styela, exposed to 105 and 106 bacteria or microalgae mL-1, can filter as much as 4.7 L hr-1 and 3.3 L hr-1, respectively. Individual tunicate filtration rates varied from hour to hour, independent of organism size, indicating that filtration rates for this species would be better reported on a population basis rather than on an individual weight or size basis. Bacterial viability in tunicate feces was assessed by ATP analysis. Bacteria were found to be non-viable after passage through the tunicate digestive tract. Filtration of eggs or larvae of recreationally or commercially important fish is of concern. The smallest eggs (~0.6mm) reported in the Indian River Lagoon belong to Cynoscion nebulosus (spotted seatrout) and Bairdiella chrysoura (silver perch). Over the course of two hours, 72.5% of 0.5 mm glass beads (simulated fish eggs) were initially retained, but many were later expelled by the tunicates. For 1.0 mm beads, 49.4% were initially retained and for 2.0 mm beads, 43.5% were initially retained. Neither the size of the oral siphon nor the size of the overall animal was correlated to bead retention. Substrate selection was investigated using the tunicate Phallusia nigra., Newly hatched larvae preferred settling on wood (53.7%), as compared to polyethylene (30.9%), high-density polyethylene (13.0%), and polyvinyl chloride (2.4%). Overall, results of this study indicate S. plicata is very effective at removing bacteria and microalgae from estuarine waters. However, further testing is warranted regarding the unwanted removal of fish eggs and larvae before utilization of S. plicata for bioremedial purposes.
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Date Issued: 2010
PURL: http://purl.flvc.org/FAU/1927312
Subject Headings: Marine bioremediation, Estuarine ecology, Water quality management, Water quality biological assessment
Format: Document (PDF)

Title: The Use of Multiple Tracers to Determine the Impact of Septic Tanks on the Water Quality of Urban and Rural Coastal Environments.
Creator: Bocca, Thais Sepulveda, Meeroff, Daniel E., Florida Atlantic University
Abstract/Description: Multiple tracers, such as DO, ammonia, TN, TOC, E. coli, TC, and Enterococcus were analyzed in order to identify and characterize trends in coastal water quality. This study focused on three factors; wastewater disposal and treatment alternative; season; and human population density. Samples were collected in representative sites of urban Broward County and of rural Taylor County, FL, for pair-wise comparison. Sites included areas connected to the public sewer network and served by on-site...
Show moreMultiple tracers, such as DO, ammonia, TN, TOC, E. coli, TC, and Enterococcus were analyzed in order to identify and characterize trends in coastal water quality. This study focused on three factors; wastewater disposal and treatment alternative; season; and human population density. Samples were collected in representative sites of urban Broward County and of rural Taylor County, FL, for pair-wise comparison. Sites included areas connected to the public sewer network and served by on-site treatment and disposal system (OSTDS). Sampling activities were conducted through seasonal low and seasonal high water table elevation (SLWT and SHWT), and always on slack to outgoing tide. Different statistical tests were performed, including: t-Tests, correlation analysis, principal component analysis (PCA), and analysis of variance (ANOVA). Results suggested that water quality is lower: in urban sites compared to rural sites; in OSTDS sites compared to sewered areas; and SHWT compared to SLWT.
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Date Issued: 2007
PURL: http://purl.flvc.org/fau/fd/FA00012505
Subject Headings: Water quality management--Florida, Coastal zone management--Florida, Environmental monitoring--Florida
Format: Document (PDF)

Title: A lime softening system for individual-household use powered by solar energy.
Creator: Slater-Williams, Alexandria, Abtahi, Homayoon, Florida Atlantic University, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: A study conducted by the World Health Organization and United Nations Children's Fund, concluded that approximately 768 million people worldwide are not receiving sanitary drinking water suitable for consumption. While there are many water treatment methods, lime softening proves to be one of the more effective approaches as it removes a wide variety of harmful compounds including arsenic, lead, mercury, and cadmium under the correct conditions. The greatest issues with lime softening on a...
Show moreA study conducted by the World Health Organization and United Nations Children's Fund, concluded that approximately 768 million people worldwide are not receiving sanitary drinking water suitable for consumption. While there are many water treatment methods, lime softening proves to be one of the more effective approaches as it removes a wide variety of harmful compounds including arsenic, lead, mercury, and cadmium under the correct conditions. The greatest issues with lime softening on a smaller scale include the complexity of the chemistry and need for monitoring. By designing the system for groundwater sources and with a smaller capacity, this thesis hoped to reduce the level of monitoring, chemical expertise, and cost needed for operation. While promising results occurred in the removal of arsenic and total hardness, this project was unable to obtain consistent results and final water samples with pH values between the recommended standard of 6.5 to 8.
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Date Issued: 2015
PURL: http://purl.flvc.org/fau/fd/FA00004412, http://purl.flvc.org/fau/fd/FA00004412
Subject Headings: Solar energy -- Economic aspects, Water -- Purification, Water -- Purification Water -- Softening, Water quality management, Water supply -- Design and construction, Water supply engineering
Format: Document (PDF)

Title: The correlations between OSTDS sites and the pollution of the surface water bodies in Broward County.
Creator: Rocher, Yvel, Bloetscher, Frederick, Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description: Sampling data of many surface water bodies in Broward County tend to reveal abnormal levels of bacterial concentrations for total coliform, Escherichia coli and Enterococcus. Given the presence of septic systems in geohydrologically sensitive areas throughout the County, several studies (Morin 2005 and Bocca 2007) suggested a correlation in the high bacterial densities and the septic sites.
Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004324, http://purl.flvc.org/fau/fd/FA00004324
Subject Headings: Bacterial pollution of water, Groundwater -- Pollution, Pathogenic microorganisms -- Detection, Sewage disposal, Sewerage, Water -- Pollution -- Point source identification, Water quality -- Management
Format: Document (PDF)

Title: Effect of Electronic Water Treatment System on Calcium Carbonate Scaling.
Creator: Shaha, Bishow Nath, Meeroff, Daniel E., Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description: Calcium carbonate precipitation and formation of clog particles inside the leachate collection pipe can cause catastrophic failures in landfill operation. This study focuses on quantifying the effectiveness of electronic scale control to reduce the clog formation within the pipe network. A field scale model (40ft × 20ft) was constructed, featuring side-by-side flow of electronically treated and untreated composite leachate. Data obtained in the first phase of this study indicate that...
Show moreCalcium carbonate precipitation and formation of clog particles inside the leachate collection pipe can cause catastrophic failures in landfill operation. This study focuses on quantifying the effectiveness of electronic scale control to reduce the clog formation within the pipe network. A field scale model (40ft × 20ft) was constructed, featuring side-by-side flow of electronically treated and untreated composite leachate. Data obtained in the first phase of this study indicate that electronic scale control system does not have any statistically significant effect on water quality parameters. The second phase of this study identified calcite (CaCO3) to be the predominant phase present in the precipitates using XRD/XRF diffraction pattern analyzed through a search match calculation program (MATCH! Version 3.2.0) which concur with the previous studies. Furthermore, Rietveld refinement using FullProf Suite confirms that there were no differences between the treated and untreated precipitate based on the phases identified in the respective samples.
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Date Issued: 2016
PURL: http://purl.flvc.org/fau/fd/FA00004706, http://purl.flvc.org/fau/fd/FA00004706
Subject Headings: Calcium carbonate, Engineered barrier systems (Waste disposal), Environmental engineering, Green technology, Incrustations, Materials science, Water -- Hardness, Water quality management
Format: Document (PDF)

Title: The combined effects of low salinity and Dermo on oysters from the St. Lucie Estuary.
Creator: Baird, Krystal D., Florida Atlantic University, Roesijadi, Guritno
Abstract/Description: The viability of the eastern oyster, Crassostrea virginica, is designated as an ecological performance measure for the management of freshwater inflows to the St. Lucie Estuary, Florida. Thus, oysters derived from the St. Lucie Estuary were tested for their physiological response to stress, measured as altered condition index and RNA/DNA ratios, resulting from changes in salinity and infection by the protozoan parasite Perkinsus marinus, the agent of Dermo, a common oyster disease. Pilot...
Show moreThe viability of the eastern oyster, Crassostrea virginica, is designated as an ecological performance measure for the management of freshwater inflows to the St. Lucie Estuary, Florida. Thus, oysters derived from the St. Lucie Estuary were tested for their physiological response to stress, measured as altered condition index and RNA/DNA ratios, resulting from changes in salinity and infection by the protozoan parasite Perkinsus marinus, the agent of Dermo, a common oyster disease. Pilot studies consisted of the development of a real-time PCR-based assay for P. marinus infection, procedures to infect oysters with the pathogen by injection method and procedures for the measurement of RNA/DNA ratios. The general experimental design was to assess the response of non-injected and injected C. virginica to low salinity challenges. Two scenarios for salinity stress were tested: one in which oysters were subjected to a single reduction in salinity and one in which an initial reduction in salinity was followed by a recovery phase and then subjected to a second challenge of reduced salinity. Condition index was more responsive to changes in salinity regimes than to P. marinus infection. Changes in the RNA/DNA ratio were responsive to the infection status, but not changes in salinity; the pattern of change in the RNA/DNA ratio generally followed changes in the measured levels of infection. The lack of mortalities showed that these oysters were able to tolerate short periods of reduced salinity.
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Date Issued: 2006
PURL: http://purl.flvc.org/fcla/dt/13335
Subject Headings: Freshwater ecology, Ecosystem management, Water quality management, American oyster--Florida, Saint Lucie River Estuary (Fla ), Salinity--Physiological effect
Format: Document (PDF)

Title: Conceptual design of a best management practice retrofit project in a small urban watershed.
Creator: Chilson, Michael., Florida Atlantic University, Nix, Stephan
Abstract/Description: Across the state of Florida, stormwater retrofit projects have been gaining increasingly more attention in recent years, mainly due to the effects stormwater and non-point source pollution have shown to have on the environment. Many retrofit projects focus mainly on "end-of-pipe" solutions with little regard for watershed behavior and the nature of the drainage system's deficiencies. This report focuses on an intimate understanding of watershed behavior and how the knowledge gained by such an...
Show moreAcross the state of Florida, stormwater retrofit projects have been gaining increasingly more attention in recent years, mainly due to the effects stormwater and non-point source pollution have shown to have on the environment. Many retrofit projects focus mainly on "end-of-pipe" solutions with little regard for watershed behavior and the nature of the drainage system's deficiencies. This report focuses on an intimate understanding of watershed behavior and how the knowledge gained by such an understanding can be a valuable tool in designing an effective stormwater management system. A case study is presented involving a small urban watershed in the Town of Davie, Florida. An intense site investigation was performed followed by a modeling procedure using the Environmental Protection Agency's Stormwater Management Model. The knowledge gained was applied to building an understanding of the drainage system and its deficiencies, and developing a tailored set of solutions for both quality and quantity.
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Date Issued: 2004
PURL: http://purl.flvc.org/fcla/dt/13142
Subject Headings: Runnoff--Florida--Davie--Management, Water quality management--Florida, Urban runoff--Florida--Management, Urban hydrology--Florida--Management, Urban runoff--Mathematicsl models
Format: Document (PDF)

Title: Investigation of flow patterns using geochemical tracers in the Floridan aquifer system, Naples, Florida.
Creator: Rectenwald, E. Edward., Florida Atlantic University, Warburton, David L.
Abstract/Description: This study investigated flow patterns in the FAS and tested Kohout's theory of "cyclic flow" in the vicinity of Naples, Florida. Temperature logs were analyzed to identify a reverse geothermal gradient in the Floridan aquifer system. The geochemical analysis consisted of inorganics (major cations and anions), stable isotopes (2H, 18O), radiocarbon (14C), and noble gas (He, Ne, Ar, Kr, Xe) data. The temperature logs were inconclusive in identifying a reverse geothermal gradient in the study...
Show moreThis study investigated flow patterns in the FAS and tested Kohout's theory of "cyclic flow" in the vicinity of Naples, Florida. Temperature logs were analyzed to identify a reverse geothermal gradient in the Floridan aquifer system. The geochemical analysis consisted of inorganics (major cations and anions), stable isotopes (2H, 18O), radiocarbon (14C), and noble gas (He, Ne, Ar, Kr, Xe) data. The temperature logs were inconclusive in identifying a reverse geothermal gradient in the study area. The geochemical analysis suggests that within the FAS relatively old meteoric freshwater circulates in the UFA over relatively young seawater of the MCU and LFA. The analysis also supports the possibility of vertical flow from the LFA to the UFA in the study area along with ancient meteoric recharge into the UFA during the last glacial period. The study was inconclusive in identifying "cyclic flow" in the study area.
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Date Issued: 2006
PURL: http://purl.flvc.org/fcla/dt/13356
Subject Headings: South Florida Water Management District (Fla ), Water quality--Florida--Naples--Measurement, Hydrogeology--Florida--Naples, Geomorphological tracers--Utilization, Groundwater flow--Florida--Naples
Format: Document (PDF)

Title: The effects of on-site sewage treatment and disposal systems on the relief canals of Indian River County, the St. Sebastian River, and the central Indian River lagoon.
Creator: Tarnowski, Marie E., Lapointe, Brian E., Florida Atlantic University, Charles E. Schmidt College of Science, Center for Environmental Studies
Abstract/Description: Effluent from on-site sewage treatment and disposal systems (OSTDS) is generally known to impact groundwaters and surface waters with nitrogen (N) and phosphorus (P) and other contaminants. Little research has quantified this problem along the Indian River Lagoon (IRL), especially in Indian River County (IRC) where there are 26,660 active systems. This study assessed the effects of OSTDS on contamination of surface and groundwaters along three urbanized canals and the St. Sebastian River in...
Show moreEffluent from on-site sewage treatment and disposal systems (OSTDS) is generally known to impact groundwaters and surface waters with nitrogen (N) and phosphorus (P) and other contaminants. Little research has quantified this problem along the Indian River Lagoon (IRL), especially in Indian River County (IRC) where there are 26,660 active systems. This study assessed the effects of OSTDS on contamination of surface and groundwaters along three urbanized canals and the St. Sebastian River in IRC, all of which flow into the Central IRL. Multiple lines of evidence were used to define the source of the nutrient loadings including the novel approach of using the artificial sweetener, sucralose, as an indicator of human sewage impact. Results indicate that areas with high densities of OSTDS are contributing N to surface waters and elevating N:P ratios through submarine groundwater discharge and promoting eutrophication in the Central IRL.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004335, http://purl.flvc.org/fau/fd/FA00004335
Subject Headings: Groundwater -- Pollution, Indian River (Lagoon) -- Environmental aspects, Indian River County (Fla.) -- Environmental aspects, Nutrient pollution of water, Saint Sebastian River (Fla.) -- Environmental aspects, Sewage disposal, Sewerage, Water -- Pollution -- Point source identification, Water quality -- Management
Format: Document (PDF)

Title: Domestic Water in Northern Trinidad: Access, Collection and Quality.
Creator: Lakhan, Siana, Fadiman, Maria, Root, Tara L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Trinidad is highly dependent on surface water as a source for domestic water supply. Due to lack of infrastructure some areas have limited access to potable/reliable source of water. Increases in industrialization and population are putting more pressure on water resources, exacerbating the problem. Part of this study looks at how, and from where people in different geographic regions in northern Trinidad collect and store water. Results indicate that urban areas rely on public water as a...
Show moreTrinidad is highly dependent on surface water as a source for domestic water supply. Due to lack of infrastructure some areas have limited access to potable/reliable source of water. Increases in industrialization and population are putting more pressure on water resources, exacerbating the problem. Part of this study looks at how, and from where people in different geographic regions in northern Trinidad collect and store water. Results indicate that urban areas rely on public water as a water source. The urban fringe relies on a public water supply as well as self-supplied sources. Rural regions depend solely on a selfsupply source. Also, I look at how nitrate and nitrite concentrations in drinking water vary with geographic location. Results indicate water quality varies with source and collection method. Further research is needed to confirm this.
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Date Issued: 2007
PURL: http://purl.flvc.org/fau/fd/FA00000785
Format: Document (PDF)

FAU Theses and Dissertations (12)	+ -
HBOI Faculty Contributions (2)	+ -

Water quality management (4)	+ -
Water quality management--Florida (3)	+ -
Groundwater -- Pollution (2)	+ -
Sewage disposal (2)	+ -
Sewerage (2)	+ -

Water -- Pollution -- Point source identification (2)	+ -
Water quality -- Management (2)	+ -
American oyster--Florida (1)	+ -
Bacterial pollution of water (1)	+ -
Calcium carbonate (1)	+ -
Coastal zone management (1)	+ -
Coastal zone management--Florida (1)	+ -
Ecosystem management (1)	+ -
Engineered barrier systems (Waste disposal) (1)	+ -
Environmental engineering (1)	+ -
Environmental monitoring--Florida (1)	+ -
Estuarine ecology (1)	+ -
Filters and filtration (1)	+ -
Freshwater ecology (1)	+ -
Geomorphological tracers--Utilization (1)	+ -
Green technology (1)	+ -
Groundwater flow--Florida--Naples (1)	+ -
Hydrogeology--Florida--Naples (1)	+ -
Hydrologic models (1)	+ -
Incrustations (1)	+ -
Indian River (Lagoon) -- Environmental aspects (1)	+ -
Indian River County (Fla.) -- Environmental aspects (1)	+ -
Marine bioremediation (1)	+ -
Marine ecosystem management (1)	+ -
Materials science (1)	+ -

Hydrology--Trinidad and Tobago--Trinidad (1)	+ -
United States (1)	+ -
Water quality--Trinidad and Tobago--Trinidad--Measurement (1)	+ -
Water resources development--Trinidad and Tobago--Trinidad (1)	+ -
Water-supply--Trinidad and Tobago--Trinidad--Management (1)	+ -

Electronic Thesis or Dissertation (12)	+ -
article (2)	+ -

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