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Biomonitors: practice and concepts
Title
Biomonitors: practice and concepts.
Creator
Laughlin, R. B., Jr., Guard, H. E., Harbor Branch Oceanographic Institute
Date Issued
1986
PURL
http://purl.flvc.org/FCLA/DT/3351932
Subject Headings
Environmental monitoring, Biological monitoring, Organisms, Xenobiotics
Format
Document (PDF)
Environmental monitoring of volatile organics by purge-closed loop gas chromatograph
Title
Environmental monitoring of volatile organics by purge-closed loop gas chromatograph.
Creator
Wang, Tsen C., Lenahan, Robert A., Kadlac, Todd E., Harbor Branch Oceanographic Institute
Date Issued
1987
PURL
http://purl.flvc.org/fau/fd/FA00007436
Subject Headings
Volatile organic compounds, Environmental monitoring, Gas chromatography
Format
Document (PDF)
Degradation of composite materials in a marine environment
Title
Degradation of composite materials in a marine environment.
Creator
Pomies, Frederic., Florida Atlantic University, Carlsson, Leif A., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
Degradation of composite materials in marine environments has been investigated experimentally and with analytical and numerical methods. Basic mechanical properties, fiber volume fraction, moisture absorption curves and transverse tensile properties after water absorption were determined. Transverse fracture surfaces of dry and wet composites were inspected in a scanning electron microscope (SEM). In addition, the edge replication technique was applied. Micromechanical stress analysis of a...
Show moreDegradation of composite materials in marine environments has been investigated experimentally and with analytical and numerical methods. Basic mechanical properties, fiber volume fraction, moisture absorption curves and transverse tensile properties after water absorption were determined. Transverse fracture surfaces of dry and wet composites were inspected in a scanning electron microscope (SEM). In addition, the edge replication technique was applied. Micromechanical stress analysis of a composite subjected to mechanical, thermal and moisture loading were performed using analytical methods and finite elements. Transverse stiffness and stress levels for interfacial debonding and matrix failure were calculated and correlated with transverse stiffness and strength obtained experimentally.
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Date Issued
1992
PURL
http://purl.flvc.org/fcla/dt/14818
Subject Headings
Composite materials, Environmental monitoring, Stress corrosion
Format
Document (PDF)
Development of a remote sensing technique for woody vegetation in Rotenberger Wildlife Management Area
Title
Development of a remote sensing technique for woody vegetation in Rotenberger Wildlife Management Area.
Creator
Franklin, Sarah., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
The Florida Fish and Wildlife Conservation Commission lacks a viable method for monitoring woody vegetation in expansive wetland communities, such as the Florida Everglades. This study used aerial photographs of Rotenberger Wildlife Management Area in southeastern Palm Beach County, Florida to develop techniques for remotely monitoring changes in woody vegetation. Imagery from 2006, 2008, and 2010 were classified into woody and non-woody categories using Adobe Photoshop's Magic Wand Tool....
Show moreThe Florida Fish and Wildlife Conservation Commission lacks a viable method for monitoring woody vegetation in expansive wetland communities, such as the Florida Everglades. This study used aerial photographs of Rotenberger Wildlife Management Area in southeastern Palm Beach County, Florida to develop techniques for remotely monitoring changes in woody vegetation. Imagery from 2006, 2008, and 2010 were classified into woody and non-woody categories using Adobe Photoshop's Magic Wand Tool. Selection was performed with a bias toward over classification, as project objectives required identifying as many trees as possible. Classified pixels in Time 1 within 4 feet (2 pixels) of classified pixels from Time 2 were considered the same canopy. Overall accuracy for the study was 98%.
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Date Issued
2011
PURL
http://purl.flvc.org/FAU/3175018
Subject Headings
Environmental monitoring, Remote sensing, Vegetation dynamics, Ecosystem management
Format
Document (PDF)
Productivity and Nutrition of Sargassum: A Comparative Ecophysiological Study of Benthic and Pelagic Species in Florida
Title
Productivity and Nutrition of Sargassum: A Comparative Ecophysiological Study of Benthic and Pelagic Species in Florida.
Creator
Feibel, Alison, Lapointe, Brian E., Florida Atlantic University, Charles E. Schmidt College of Science, Center for Environmental Studies
Abstract/Description
Benthic algal species receive elevated nitrogen (N) and phosphorus (P) availability as anthropogenic activities increase the loading of nutrients into coastal waters. Pelagic species could also be responding to this nutrient enrichment. This study compared the tissue nutrient content and productivity of three benthic and two pelagic species of Sargassum. We hypothesized that the benthic species would have a higher tissue nutrient content and productivity than the pelagic species and the...
Show moreBenthic algal species receive elevated nitrogen (N) and phosphorus (P) availability as anthropogenic activities increase the loading of nutrients into coastal waters. Pelagic species could also be responding to this nutrient enrichment. This study compared the tissue nutrient content and productivity of three benthic and two pelagic species of Sargassum. We hypothesized that the benthic species would have a higher tissue nutrient content and productivity than the pelagic species and the pelagic species would have a higher tissue nutrient content and productivity than historic data. The tissue nutrient content and net productivity of the benthic and pelagic species were not significantly different indicating that the pelagic species are receiving high levels of nutrient availability comparable to that of the benthic species. Pelagic species in the current study exhibited significantly higher N:P ratios and net productivity than the historic data, suggesting a shift from N to P limitation and increased productivity.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004695, http://purl.flvc.org/fau/fd/FA00004695
Subject Headings
Biotic communities, Environmental monitoring, Indicators (Biology), Marine algae -- Florida, Marine biology -- Florida, Sargassum
Format
Document (PDF)
Interpretation of beach and nearshore morphodynamics, based on detailed geomorphological mapping
Title
Interpretation of beach and nearshore morphodynamics, based on detailed geomorphological mapping.
Creator
Benedet, Lindino, Florida Atlantic University, Finkl, Charles W.
Abstract/Description
Shorelines are prefigured by inherited geologic features and spatially-defined process-form relationships that require in depth study. This thesis is based on the interpretation, delineation, and analysis of coastal geomorphological features, as mapped from large-scale (e.g. 1:3600), digital, georeferenced, stereo-paired, color, aerial photography. The morphologic features identified include coral-algae reef tracts, rock reefs, sedimentary features such as bars, troughs, and sandflats, and...
Show moreShorelines are prefigured by inherited geologic features and spatially-defined process-form relationships that require in depth study. This thesis is based on the interpretation, delineation, and analysis of coastal geomorphological features, as mapped from large-scale (e.g. 1:3600), digital, georeferenced, stereo-paired, color, aerial photography. The morphologic features identified include coral-algae reef tracts, rock reefs, sedimentary features such as bars, troughs, and sandflats, and different types of engineering works. Interrelationships between these morphologic features are analyzed using a remote sensing-GIS/MIS (Geographic and Marine Information Systems) framework, and applying interpretive approaches in the analysis of beach and nearshore morphodynamics. Sediment and wave data is used to calculate the dimensionless fall velocity (O), which combined with local geomorphology, defines beach types. Special purpose geomorphological and morphodynamic maps generated here, together with assessment of beach types and analysis of downdrift erosion provides new insights and deep understanding of large scale coastal behavior, which is of great use to management planning strategies.
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Date Issued
2002
PURL
http://purl.flvc.org/fcla/dt/12969
Subject Headings
Geomorphological mapping, Environmental monitoring, Aerial photography in geomorphology, Coastal zone management
Format
Document (PDF)
Stress protein expression and green turtle fibropapillomatosis
Title
Stress protein expression and green turtle fibropapillomatosis.
Creator
McGarrity, Monica E., Florida Atlantic University, Milton, Sarah L.
Abstract/Description
Green turtle fibropapillomatosis (GTFP) is a highly debilitating disease that affects several species of marine turtles worldwide. This study evaluated stress protein expression in red blood cells (RBCs), skin and tumors of green turtles (Chelonia mydas) from a GTFP-prevalent site and a more pristine, GTFP-free site. Levels of expression of HSP72 were significantly higher in healthy turtles from the GTFP-prevalent site compared to healthy turtles from the GTFP-free site, suggesting that these...
Show moreGreen turtle fibropapillomatosis (GTFP) is a highly debilitating disease that affects several species of marine turtles worldwide. This study evaluated stress protein expression in red blood cells (RBCs), skin and tumors of green turtles (Chelonia mydas) from a GTFP-prevalent site and a more pristine, GTFP-free site. Levels of expression of HSP72 were significantly higher in healthy turtles from the GTFP-prevalent site compared to healthy turtles from the GTFP-free site, suggesting that these turtles are, indeed stressed. Levels of HSP72 expression were also significantly higher in the nucleated RBCs than in skin tissues of turtles from both sites. These results demonstrate the utility of RBC stress protein evaluation as a new, minimally invasive method of evaluating stress loads in marine turtles as a factor in the potentially multifactorial etiology of GTFP. In addition, HSP72 and GP96 were present and detectable in tumors of diseased turtles, and thus show potential for use in treatment of GTFP.
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Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/13269
Subject Headings
Green turtle--Diseases, Green turtle--Immunology, Stress (Physiology), Environmental monitoring
Format
Document (PDF)
Stress Protein and Anti-Apoptotic Protein Expression in Green Turtle (Chelonia mydas) Fibropapillomatosis
Title
Stress Protein and Anti-Apoptotic Protein Expression in Green Turtle (Chelonia mydas) Fibropapillomatosis.
Creator
Deming, Alissa C., Milton, Sarah L., Florida Atlantic University
Abstract/Description
Fibropapillomatosis (FP) is a devastating pandemic characterized by benign cutaneous neoplasias that is afflicting marine turtles worldwide. This study evaluated the expression of HSP72, GRP96, and Bcl-2 in tumor and healthy biopsies. These proteins are found in high levels in some tumors and prevent apoptosis, allowing tumor cells to survive. HSP72 and GRP96 are also known to initiate an immune response and may contribute to the regression often observed in FP tumors. Results were found that...
Show moreFibropapillomatosis (FP) is a devastating pandemic characterized by benign cutaneous neoplasias that is afflicting marine turtles worldwide. This study evaluated the expression of HSP72, GRP96, and Bcl-2 in tumor and healthy biopsies. These proteins are found in high levels in some tumors and prevent apoptosis, allowing tumor cells to survive. HSP72 and GRP96 are also known to initiate an immune response and may contribute to the regression often observed in FP tumors. Results were found that showed all three protective proteins had significantly higher levels in actively growing tumor tissue compared to healthy tissue. Specifically, cauliflower-like tumors, thought to be actively growing, were found to have higher levels of HSP72 and GRP96 compared to healthy skin, whereas smooth tumors, thought to be regressing, did not. These results offer insight into the molecular mechanisms behind the development of FP tumors and open a number of avenues for future research.
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Date Issued
2008
PURL
http://purl.flvc.org/fau/fd/FA00000740
Subject Headings
Stress (Physiology), Green turtle--Diseases, Environmental monitoring, Green turtle--Immunology
Format
Document (PDF)
The Use of Multiple Tracers to Determine the Impact of Septic Tanks on the Water Quality of Urban and Rural Coastal Environments
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)
Water and Soil Salinity Mapping for Southern Everglades using Remote Sensing Techniques and In Situ Observations
Title
Water and Soil Salinity Mapping for Southern Everglades using Remote Sensing Techniques and In Situ Observations.
Creator
Khadim, Fahad Khan, Su, Hongbo, Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description
Everglades National Park is a hydro-ecologically significant wetland experiencing salinity ingress over the years. This motivated our study to map water salinity using a spatially weighted optimization model (SWOM); and soil salinity using land cover classes and EC thresholds. SWOM was calibrated and validated at 3-km grids with actual salinity for 1998–2001, and yielded acceptable R2 (0.89-0.92) and RMSE (1.73-1.92 ppt). Afterwards, seasonal water salinity mapping for 1996–97, 2004–05, and...
Show moreEverglades National Park is a hydro-ecologically significant wetland experiencing salinity ingress over the years. This motivated our study to map water salinity using a spatially weighted optimization model (SWOM); and soil salinity using land cover classes and EC thresholds. SWOM was calibrated and validated at 3-km grids with actual salinity for 1998–2001, and yielded acceptable R2 (0.89-0.92) and RMSE (1.73-1.92 ppt). Afterwards, seasonal water salinity mapping for 1996–97, 2004–05, and 2016 was carried out. For soil salinity mapping, supervised land cover classification was firstly carried out for 1996, 2000, 2006, 2010 and 2015; with the first four providing average accuracies of 82%-94% against existing NLCD classifications. The land cover classes and EC thresholds helped mapping four soil salinity classes namely, the non saline (EC = 0~2 dS/m), low saline (EC = 2~4 dS/m), moderate saline (EC = 4~8 dS/m) and high saline (EC >8 dS/m) areas.
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Date Issued
2017
PURL
http://purl.flvc.org/fau/fd/FA00004860, http://purl.flvc.org/fau/fd/FA00004860
Subject Headings
Everglades National Park (Fla.)--Environmental conditions., Florida Bay (Fla.)--Environmental conditions., Remote sensing., Multispectral imaging., Environmental monitoring--Remote sensing., Geographic information systems., Soils--Remote sensing., Soil moisture--Measurement., Soil mapping.
Format
Document (PDF)
Mapping wetland vegetation with LIDAR in Everglades National Park, Florida, USA
Title
Mapping wetland vegetation with LIDAR in Everglades National Park, Florida, USA.
Creator
De Stoppelaire, Georgia H., Xie, Zhixiao, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
Knowledge of the geospatial distribution of vegetation is fundamental for resource management. The objective of this study is to investigate the possible use of airborne LIDAR (light detection and ranging) data to improve classification accuracy of high spatial resolution optical imagery and compare the ability of two classification algorithms to accurately identify and map wetland vegetation communities. In this study, high resolution imagery integrated with LIDAR data was compared jointly...
Show moreKnowledge of the geospatial distribution of vegetation is fundamental for resource management. The objective of this study is to investigate the possible use of airborne LIDAR (light detection and ranging) data to improve classification accuracy of high spatial resolution optical imagery and compare the ability of two classification algorithms to accurately identify and map wetland vegetation communities. In this study, high resolution imagery integrated with LIDAR data was compared jointly and alone; and the nearest neighbor (NN) and machine learning random forest (RF) classifiers were assessed in semi-automated geographic object-based image analysis (GEOBIA) approaches for classification accuracy of heterogeneous vegetation assemblages at Everglades National Park, FL, USA.
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Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00004276
Subject Headings
Everglades National Park (Fla.)--Environmental conditions., Geographic information systems--Florida--Everglades Region., Ecosystem management--Florida--Everglades Region., Vegetation monitoring--Florida--Everglades National Park., Wetland management--Florida--Everglades National Park., Coastal zone management--Remote sensing--Florida--Everglades National Park., Environmental mapping--Florida--Everglades National Park., Environmental monitoring--Remote sensing--Florida--Everglades National Park.
Format
Document (PDF)