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Title: The influence of episodic weather events on tidal residual currents: A case study at Sebastian Inlet, Florida.
Creator: Liu, James T., Harbor Branch Oceanographic Institute
Date Issued: 1992
PURL: http://purl.flvc.org/FCLA/DT/3174862
Subject Headings: Tidal currents, Marine sediments
Format: Document (PDF)

Title: REDOX ENVIRONMENT CONTROLS ON THE DEGRADATION OF HARMFUL ORGANIC CONTAMINANTS IN MARINE SEDIMENT.
Creator: Quinan, Matthew P., Beckler, Jordon, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
Abstract/Description: Harmful organic contaminants, such as petroleum hydrocarbons, are ubiquitous in coastal marine ecosystems around the world, a problem that will only be exacerbated with rising sea level and increased inundation of coastal urban areas. Therefore, it is necessary to understand the fate of these contaminants following their deposition on marine sediment, where they can potentially persist for long periods of time. As organic carbon remineralization rates depend on the respiration process...
Show moreHarmful organic contaminants, such as petroleum hydrocarbons, are ubiquitous in coastal marine ecosystems around the world, a problem that will only be exacerbated with rising sea level and increased inundation of coastal urban areas. Therefore, it is necessary to understand the fate of these contaminants following their deposition on marine sediment, where they can potentially persist for long periods of time. As organic carbon remineralization rates depend on the respiration process employed by the bacteria in the sediment, it was the goal of this study to determine how the sediment redox environment, with an emphasis on Fe redox chemistry, affects the biodegradation of recalcitrant petroleum hydrocarbon compounds. While amendment of natural sediment with Fe minerals that are commonly transported to coastal areas following erosion from continental crust did successfully catalyze Fe reduction and inhibit sulfate reduction, the effect on the hydrocarbon biodegradation rate was negligible. However, inoculation of the sediment with Shewanella oneidensis, an exoelectrogenic, Fe reducing bacteria known to catalyze the degradation of hydrocarbon compounds found in crude oil, did significantly affect the redox environment and sediment microbial communities and alter the pattern of hydrocarbon loss in the sediment over time.
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Date Issued: 2021
PURL: http://purl.flvc.org/fau/fd/FA00013801
Subject Headings: Marine sediments, Coastal sediments, Organic compounds--Biodegradation, Oil spills
Format: Document (PDF)

Title: Sediment exchange in tidal inlets.
Creator: Merz, Clifford Ronald., Florida Atlantic University, Scarlatos, Panagiotis (Pete) D., College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description: Sediment exchange characteristics of tidal inlets subjected to tidal excitations are investigated and the results compared to field data measured at Jupiter Inlet, Florida. A specially written computer program combines inlet/nearshore hydrodynamic expressions with bed-load and suspended load sediment transport relationships to examine the building mechanisms of the near-shore tidal ebb shoal. The ebb tidal flow is modeled as a turbulent, plane jet which includes lateral mixing and entrainment...
Show moreSediment exchange characteristics of tidal inlets subjected to tidal excitations are investigated and the results compared to field data measured at Jupiter Inlet, Florida. A specially written computer program combines inlet/nearshore hydrodynamic expressions with bed-load and suspended load sediment transport relationships to examine the building mechanisms of the near-shore tidal ebb shoal. The ebb tidal flow is modeled as a turbulent, plane jet which includes lateral mixing and entrainment, bottom friction, and offshore bathymetric changes. Flood tidal flow is modeled as a potential flow sink with the water being drawn into the inlet from one or more dominant offshore areas depending on the offshore bottom slope. Sediment transport expressions are evaluated at various locations within the offshore flow field and the sediment deposition depth is calculated at that location over one tidal cycle. Model results are plotted and compared to field data for analysis.
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Date Issued: 1995
PURL: http://purl.flvc.org/fcla/dt/15206
Subject Headings: Tides, Marine sediments, Sediment transport--Florida--Jupiter Inlet, Inlets
Format: Document (PDF)

Title: Predator caging experiments in soft sediments: caution advised.
Creator: Virnstein, Robert W., Harbor Branch Oceanographic Institute
Date Issued: 1978
PURL: http://purl.flvc.org/FCLA/DT/3343789
Subject Headings: Experiments, Marine sediments, Predation, Caging experiments
Format: Document (PDF)

Title: Effects of physical gradients on the production dynamics of sediment-associated algae.
Creator: Davis, M. W., McIntire, C. D., Harbor Branch Oceanographic Institute
Date Issued: 1983
PURL: http://purl.flvc.org/FCLA/DT/3350843
Subject Headings: Biomass, Seagrasses, Estuaries, Marine sediments, Algae, Diatoms
Format: Document (PDF)

Title: Model experiments for the acoustic field in a water column which includes the effects of shear in marine sediments.
Creator: Hundley, Allen John., Florida Atlantic University, Glegg, Stewart A. L.
Abstract/Description: A scaled, horizontally stratified shallow water marine acoustic model is constructed for the purpose of investigating the sound field resulting from long range propagation. The characteristics of this sound field in the water column are strongly dependent upon properties of the surficial sediment. One effect is the conversion from compressional waves in the water column to shear waves in the sediment at grazing angles less than the critical. To model a shallow marine environment, concrete is...
Show moreA scaled, horizontally stratified shallow water marine acoustic model is constructed for the purpose of investigating the sound field resulting from long range propagation. The characteristics of this sound field in the water column are strongly dependent upon properties of the surficial sediment. One effect is the conversion from compressional waves in the water column to shear waves in the sediment at grazing angles less than the critical. To model a shallow marine environment, concrete is used as a substrate rock and laminating epoxy is used to model a surficial sediment. Preliminary tests of the effects of the model's environment are performed, and the range dependent sound field as a function of depth is measured for several CW frequencies. These sound field profiles are compared with an approximate predictive theory, and with a numerical solution which treats the sediment properties exactly.
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Date Issued: 1990
PURL: http://purl.flvc.org/fcla/dt/14618
Subject Headings: Underwater acoustics, Marine sediments--Acoustic properties
Format: Document (PDF)

Title: Impact of noise on seafloor property estimation using Biot model parameters obtained through an inversion of chirp sonar data.
Creator: Munro, Lachlan I., Florida Atlantic University, Schock, Steven G., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: This thesis describes the development and testing of an inversion method, based on the Biot-Stoll acoustic wave propagation model, for estimating sediments properties from acoustic reflection measurements of the seabed. The Biot-Stoll model is a physics-based model which describes the propagation of compressional and shear waves through porous media. Given the physical sediment properties of the seabed, the pressure reflection coefficient of the seabed is calculated using the Biot-Stoll model...
Show moreThis thesis describes the development and testing of an inversion method, based on the Biot-Stoll acoustic wave propagation model, for estimating sediments properties from acoustic reflection measurements of the seabed. The Biot-Stoll model is a physics-based model which describes the propagation of compressional and shear waves through porous media. Given the physical sediment properties of the seabed, the pressure reflection coefficient of the seabed is calculated using the Biot-Stoll model. The proposed inversion procedure varies sediment properties until a least squares fit is obtained between the output of the model and the measured reflection coefficient. Random errors are introduced into the reflection coefficient measurement to determine the effect of measurement error in the estimation of seabed properties such as permeability, porosity, mean grain diameter, and sediment type.
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Date Issued: 2003
PURL: http://purl.flvc.org/fcla/dt/13084
Subject Headings: Underwater acoustics, Marine sediments--Acoustic properties
Format: Document (PDF)

Title: POLYCHAETE-SEDIMENT RELATIONSHIPS ALONG A SUBTIDAL TRANSECT OFF SOUTHEASTERN FLORIDA.
Creator: WAINRIGHT, SAM CHAPMAN, Florida Atlantic University
Abstract/Description: The benthic polychaete community and its associated sedimentary environment were examined in February and August, 1978, at five stations ranging in depth from 2.3 to 19.8 m off Highland Beach, Florida. A total of 176 species were collected; the numbers of species and individuals increased from the nearshore station to the station farthest from shore. These increases are thought to be a result of decreased wave-induced turbulence and increased food supply in deeper waters. Motile infaunal...
Show moreThe benthic polychaete community and its associated sedimentary environment were examined in February and August, 1978, at five stations ranging in depth from 2.3 to 19.8 m off Highland Beach, Florida. A total of 176 species were collected; the numbers of species and individuals increased from the nearshore station to the station farthest from shore. These increases are thought to be a result of decreased wave-induced turbulence and increased food supply in deeper waters. Motile infaunal feeders comprised the majority of the community at the shallower stations (especially in winter) while discretely motile and sessile surface feeders dominated in deeper water. Dominant species at each station showed little functional overlap, suggesting that resource partitioning was occurring. Sediment parameters, although not as important as depth and turbulence in regulating community structure, showed significant correlations with biological parameters.
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Date Issued: 1983
PURL: http://purl.flvc.org/fcla/dt/14144
Subject Headings: Polychaeta--Florida--Highland Beach, Marine sediments
Format: Document (PDF)

Title: Validation of numerical modelling for long range acoustic propagation.
Creator: Riley, Joseph M., Florida Atlantic University, Glegg, Stewart A. L., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: Laboratory scale measurements were conducted to validate numerical prediction models used to predict the acoustic field in a shallow water ocean environment. Experimental measurements were conducted in a range independent environment which included the effects of shear in marine sediments and in a depth varying range dependent environment. Good agreement between the experimental measurements and the numerical prediction codes were obtained using optimized values for the input parameters of...
Show moreLaboratory scale measurements were conducted to validate numerical prediction models used to predict the acoustic field in a shallow water ocean environment. Experimental measurements were conducted in a range independent environment which included the effects of shear in marine sediments and in a depth varying range dependent environment. Good agreement between the experimental measurements and the numerical prediction codes were obtained using optimized values for the input parameters of the environmental model. In comparing experimental measurements to the numerical prediction codes it became apparent that the codes were very sensitive to the input parameters describing the bottom boundary of the ocean waveguide.
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Date Issued: 1992
PURL: http://purl.flvc.org/fcla/dt/14819
Subject Headings: Acoustical engineering, Underwater acoustics, Marine sediments
Format: Document (PDF)

Title: APPLICATION OF A MICROPROCESSOR TO ACOUSTIC DATA SAMPLING AND MANAGEMENT TASKS (AS APPLIED TO MANGANESE NODULE MINING).
Creator: MURPHY, DAVID PAUL, JR., Florida Atlantic University, Davidson, J. Blaine, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: Methods of collecting information about the deep ocean sediments are considered. A compact, flexible data collection and management system based on microprocessor technology is developed. The hardware of the system is detailed and a typical software operating system is presented which controls sensor operations, stores temporary data and communicates with a shipboard computer system.
Date Issued: 1979
PURL: http://purl.flvc.org/fcla/dt/13987
Subject Headings: Microprocessors, Marine sediments--Sampling, Manganese nodules
Format: Document (PDF)

Title: THE EFFECTS OF OVERHANGING LEDGES ON THE MACROINVERTEBRATE BENTHOS OF A SUBTIDAL SANDY BOTTOM.
Creator: STANALAND, BROCK EDWARD., Florida Atlantic University
Abstract/Description: The effects of overharging ledges on subtidal macroinvertebrate infauna was investigated in northern Broward County, Florida during August 1976 and February 1977. At each of six stations along a limestone outcropping, collections were made from open sand areas and adjacent underledge areas. Organisms retained on a 0.5mm screen were collected and identified. Although open sand and underledge areas yielded essentially the same species, faunal densities were consistently and conspicuously lower...
Show moreThe effects of overharging ledges on subtidal macroinvertebrate infauna was investigated in northern Broward County, Florida during August 1976 and February 1977. At each of six stations along a limestone outcropping, collections were made from open sand areas and adjacent underledge areas. Organisms retained on a 0.5mm screen were collected and identified. Although open sand and underledge areas yielded essentially the same species, faunal densities were consistently and conspicuously lower in the latter sites. Differences were probably a result of current activity as it affected detritovores and filter feeding organisms.
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Date Issued: 1977
PURL: http://purl.flvc.org/fcla/dt/13899
Subject Headings: Marine sediments--Atlantic Coast, Benthos, Marine invertebrates
Format: Document (PDF)

Title: Classification of marine sediments using a fuzzy logic impedance inversion model.
Creator: DeBruin, Darryl L., Florida Atlantic University, LeBlanc, Lester R., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: In this dissertation, a fuzzy logic impedance inversion model is developed to classify marine sediments. Expert knowledge and fuzzy decision making constrain the inversion procedures to the resolving ability of the transmitted. The model is validated by comparing the estimated impedance profile with the measured impedance profile. A coherent surface scattering and incoherent volume scattering model are incorporated into a single geoacoustic scattering model that is applied to acoustic...
Show moreIn this dissertation, a fuzzy logic impedance inversion model is developed to classify marine sediments. Expert knowledge and fuzzy decision making constrain the inversion procedures to the resolving ability of the transmitted. The model is validated by comparing the estimated impedance profile with the measured impedance profile. A coherent surface scattering and incoherent volume scattering model are incorporated into a single geoacoustic scattering model that is applied to acoustic subbottom measurements. The reflected signal is modeled as the convolution of the transmitted processed wavelet and the impulse response of the sea bottom. The impedance of the acoustic return is inverted at the layer interfaces and the volume scattering strength is measured between layer interfaces. The model is applied to acoustic subbottom measurements obtained by an X-STAR subbottom profiler sonar system. The inversion techniques are developed for a 2-10 kHz 20 msec swept FM pulse. A fuzzy logic layer tracking procedure identifies the coherent surface scattering layer interfaces in a subbottom profile image. The peak amplitudes and locations are used as fuzzy inputs in the layer tracking rule base. The rule base determines which peak is assigned to the layer when two peaks compete for assignment or which layer is assigned to the peak when two layers compete for assignment. The fuzzy event detection algorithm estimates the impulse response of the acoustic return by complex least squares fitting parts of the transmitted wavelet with sections of the acoustic return. Reflectors are iteratively identified and removed from the return and the residual return is reprocessed. The detection procedure is constrained by the resolving ability of the matching signals and the peak envelope shape of the acoustic return. A genetic algorithm allows up to five low error reflector estimates to be processed until converging on the correct estimated impulse response (the tree branch whose summed error is minimized). The impedance is correlated with sediment bulk density by empirical relation. Experimental results validate that the fuzzy logic impedance inversion model reliably estimates the impedance of the sea bottom. The estimated impedance profiles of fifty acoustic returns are averaged and compared with measured impedance values.
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Date Issued: 1995
PURL: http://purl.flvc.org/fcla/dt/12415
Subject Headings: Fuzzy logic, Marine sediments, Acoustic impedance, Marine sediments--Acoustic properties
Format: Document (PDF)

Title: Chlorophyll distribution in continental shelf sediments off West Palm Beach, Florida and west end, Bahamas.
Creator: Heffernan, John J., Gibson, R. A., Harbor Branch Oceanographic Institute
Date Issued: 1983
PURL: http://purl.flvc.org/FCLA/DT/3173005
Subject Headings: Marine sediments, Continental shelf, Chlorophyll, Pigments Analysis, Oceanographic submersibles
Format: Document (PDF)

Title: Temporal and spatial variation in habitat characteristics of tilefish (Lopholatilus chamaeleonticeps) off the east coast of Florida.
Creator: Able, Kenneth W., Grimes, Churchill B., Jones, Robert S., Twichell, David C., Harbor Branch Oceanographic Institute
Date Issued: 1993
PURL: http://purl.flvc.org/FCLA/DT/3172857
Subject Headings: Tilefish, Marine sediments --Florida, Carbonates, Sidescan sonar, Oceanographic submersibles
Format: Document (PDF)

Title: Observations and simulations of water-sediment heat exchange in a shallow coastal lagoon.
Creator: Smith, Ned P.
Date Issued: 2002
PURL: http://purl.flvc.org/FCLA/DT/3172997
Subject Headings: Indian River (Fla.: Lagoon), Temperature, Marine sediments, Estuaries, Heat --Transmission
Format: Document (PDF)

Title: Broadband measurements of compressional wave attenuation.
Creator: Reeder, Angela Christine., Florida Atlantic University, Schock, Steven G., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: An in situ acoustic measurement system was developed to estimate the compressional wave attenuation of marine sediments. The system uses acoustic probes to measure a wideband acoustic pulse traveling horizontally though various sediments. The system transmits a 20 millisecond frequency-modulated (FM) pulse swept from 3 to 50 kHz and match filters the received signals. A special ratio of data collected at two horizontal ranges from the source is used to estimate attenuation as a function of...
Show moreAn in situ acoustic measurement system was developed to estimate the compressional wave attenuation of marine sediments. The system uses acoustic probes to measure a wideband acoustic pulse traveling horizontally though various sediments. The system transmits a 20 millisecond frequency-modulated (FM) pulse swept from 3 to 50 kHz and match filters the received signals. A special ratio of data collected at two horizontal ranges from the source is used to estimate attenuation as a function of frequency. Data is collected with the in situ system and a chirp subbottom profiling sonar at two offshore sites to compare the attenuation of horizontally and vertically traveling waves in sediment. The collected data is also used to determine the feasibility of remotely estimating in situ attenuation using a chirp sonar. In situ and chirp sonar estimates agree and fall within the range of attenuation measurements made by other investigators in similar sediments.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15327
Subject Headings: Marine sediments--Acoustic properties--Measurement, Signal processing
Format: Document (PDF)

Title: Real time method for remote measurement of compressional wave attenuation.
Creator: DeBruin, Darryl L., Florida Atlantic University, Schock, Steven G.
Abstract/Description: An acoustic measurement system is developed to estimate the compressional wave attenuation of marine sediments in real time. A chirp sonar transmits filtered digital reflection data to a signal processing computer that processes the data on an AT&T DSP32C chip. The signal processing computer estimates and displays the center frequency of the processed pulse as it is attenuated by the ocean sediments. Wavelet modelling establishes the relationship between the center frequency shift and...
Show moreAn acoustic measurement system is developed to estimate the compressional wave attenuation of marine sediments in real time. A chirp sonar transmits filtered digital reflection data to a signal processing computer that processes the data on an AT&T DSP32C chip. The signal processing computer estimates and displays the center frequency of the processed pulse as it is attenuated by the ocean sediments. Wavelet modelling establishes the relationship between the center frequency shift and relaxation time, from which the sediment type and compressional wave attenuation are determined. Frequency contours from two different data sites demonstrate that the system is able to reliably estimate sediment type and compressional wave attenuation. Error introduced by noise is below 1% for noise levels less than 0.1 of the normalized processed signal. Random error in the estimates is minimized by determining reliable frequency values and by ensemble averaging the values.
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Date Issued: 1992
PURL: http://purl.flvc.org/fcla/dt/14824
Subject Headings: Marine sediments--Acoustic properties, Signal processing--Computer simulation
Format: Document (PDF)

Title: Sediment layer tracking using neural networks.
Creator: Freyermuth, Vincent Nicolas., Florida Atlantic University, Schock, Steven G.
Abstract/Description: The detection of sediment layer interfaces in normal incidence acoustic reflection data is a requirement for automatic classification and geologic mapping of subsurface layers. The detection is difficult because of the constructive and destructive interference caused by the impedance changes in the sediment column and high scattering noise levels. The purpose of this work is to implement a procedure using neural networks that automatically detects the sediment layers from the envelope of...
Show moreThe detection of sediment layer interfaces in normal incidence acoustic reflection data is a requirement for automatic classification and geologic mapping of subsurface layers. The detection is difficult because of the constructive and destructive interference caused by the impedance changes in the sediment column and high scattering noise levels. The purpose of this work is to implement a procedure using neural networks that automatically detects the sediment layers from the envelope of acoustic reflections. The data was collected using a sub-bottom profiler that transmits a 2 to 10 kHz FM pulse. The detection procedure is a three step method: a first neural network removes most of the reflections due to random scatterers, a second neural network tracks the layers and a third algorithm recognizes the segments of detected layers corresponding to the same sediment interface Applied on different sub-bottom images, the procedure detects more than 80% of the layers correctly.
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Date Issued: 1998
PURL: http://purl.flvc.org/fcla/dt/15561
Subject Headings: Neural networks (Computer science), Marine sediments--Acoustic properties
Format: Document (PDF)

Title: The development and application of a numerical model for predicting the frequency response of the seabed from vertical profiles of sediment impedance.
Creator: Zhang, Jian Long., Florida Atlantic University, Schock, Steven G., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: Interaction of normal incidence, wideband acoustic pulses with seabed is investigated to determine the acoustic frequency ranges that provide the most information about the sediment structure. An exact numerical model is developed for calculating the frequency response and impulse response of the seabed from an impedance profile of a sediment core. A database of impedance profiles from several ocean environments were studied to describe the shapes of commonly found impedance changes. The...
Show moreInteraction of normal incidence, wideband acoustic pulses with seabed is investigated to determine the acoustic frequency ranges that provide the most information about the sediment structure. An exact numerical model is developed for calculating the frequency response and impulse response of the seabed from an impedance profile of a sediment core. A database of impedance profiles from several ocean environments were studied to describe the shapes of commonly found impedance changes. The impulse response of the seabed is convolved with acoustic pulses to generate synthetic acoustic returns. The synthetic profiles are studied to determine the effect of operating frequency and bandwidth on resolution and on the accuracy of measuring impedance changes. This thesis explains why inversion procedures have failed to generate vertical impedance profiles of the seabed from normal incidence reflection data. The results of this work provide guidelines for selecting subbottom profiler array sizes and operating frequencies for quantitative sediment studies, and for subsampling cores.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15293
Subject Headings: Marine sediments--Acoustic properties, Seismic reflection method
Format: Document (PDF)

Title: THE BIOGEOCHEMICAL IMPORTANCE OF REACTIVE IRON IN FLORIDA BAY SEDIMENTS: BENTHIC-PELAGIC COUPLING AND SEASONAL SULFIDE DYNAMICS.
Creator: Thackston, Mason A., Beckler, Jordon, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
Abstract/Description: Iron and manganese redox chemistry are important drivers of sulfur cycling in marine sediments. Florida Bay sediments are extremely sulfidic, having been attributed to mass mortality of seagrass and oxygen depletion in the water column. This research used conventional sediment analyses and a diagenetic model to infer the overall capacity for Florida Bay sediments to eliminate hydrogen sulfide and prevent high rates of sediment dissolved oxygen consumption via hydrogen sulfide reoxidation....
Show moreIron and manganese redox chemistry are important drivers of sulfur cycling in marine sediments. Florida Bay sediments are extremely sulfidic, having been attributed to mass mortality of seagrass and oxygen depletion in the water column. This research used conventional sediment analyses and a diagenetic model to infer the overall capacity for Florida Bay sediments to eliminate hydrogen sulfide and prevent high rates of sediment dissolved oxygen consumption via hydrogen sulfide reoxidation. Previous studies have suggested that iron is important for buffering hydrogen sulfide in Florida Bay sediments, while the results of this project show for the first time that this phenomenon is relevant only in specific locations and times of the year. However, my research indicates that Fe has the potential to sequester sulfides and minimize hypoxia in the Everglades system. Thus, under a scenario that greater amounts of Fe are delivered to Florida Bay sediments from freshwater flows under Everglades restoration, Fe could be a component of ecosystem management.
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Date Issued: 2024
PURL: http://purl.flvc.org/fau/fd/FA00014421
Subject Headings: Marine sediments, Florida Bay (Fla.), Sulfur cycle, Biogeochemical cycles
Format: Document (PDF)

FAU Theses and Dissertations (25)	+ -
HBOI Faculty Contributions (11)	+ -

Marine sediments (17)	+ -
Marine sediments--Acoustic properties (10)	+ -
Underwater acoustics--Measurement (4)	+ -
Underwater acoustics (3)	+ -
Estuaries (2)	+ -

Marine sediments--Florida--Florida Bay (2)	+ -
Marine sediments--Sampling (2)	+ -
Ocean bottom (2)	+ -
Oceanographic submersibles (2)	+ -
Acoustic impedance (1)	+ -
Acoustical engineering (1)	+ -
Algae (1)	+ -
Algae culture (1)	+ -
Benthic animals (1)	+ -
Benthos (1)	+ -
Biogeochemical cycles (1)	+ -
Biomass (1)	+ -
Biotic communities (1)	+ -
Caging experiments (1)	+ -
Calcium carbonate (1)	+ -
Carbonates (1)	+ -
Carotenoids--Analysis (1)	+ -
Chlorophyll (1)	+ -
Chlorophyll--Analysis (1)	+ -
Coastal sediments (1)	+ -
Coastal zone management--Florida--Broward County (1)	+ -
Continental shelf (1)	+ -
Coral reef ecology (1)	+ -
Deep-sea ecology. (1)	+ -
Diatoms (1)	+ -

Florida (1)	+ -
Florida Bay (1)	+ -
Florida Reef Tract (1)	+ -
Lake Worth Lagoon (Fla.) (1)	+ -

Electronic Thesis or Dissertation (25)	+ -
article (11)	+ -

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