Current Search: Biofilms (x)
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Title
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Mechanisms oftriorganotin toxicity to macroinvertebrates and the role of the biofilm as a controlled release medium.
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Creator
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Laughlin, R. B., Jr., Cobet, A. B., Guard, H. E., Harbor Branch Oceanographic Institute
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Date Issued
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1988
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PURL
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http://purl.flvc.org/fau/fd/FA00007330
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Subject Headings
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Organotin compounds, Tributyltin, Paint, Antifouling, Biofilms
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Format
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Document (PDF)
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Title
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Plastic Debris in the Marine Environment: Fate, Fragmentation, and Niche Opportunities of the Plastisphere.
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Creator
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Bos, Ryan P., Mincer, Tracy J., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
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Abstract/Description
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The goal of this dissertation was to examine the fate and fragmentation of plastic debris in the marine environment and characterize the microbial communities colonizing naturally occurring substrates and geologically recent plastic inputs in the ocean using analytical chemistry and genomic techniques. Altogether, the data presented herein reveal the presence of heretofore undescribed plastic accumulation zones in the ocean and depict a stark contrast in microbial traits between early and...
Show moreThe goal of this dissertation was to examine the fate and fragmentation of plastic debris in the marine environment and characterize the microbial communities colonizing naturally occurring substrates and geologically recent plastic inputs in the ocean using analytical chemistry and genomic techniques. Altogether, the data presented herein reveal the presence of heretofore undescribed plastic accumulation zones in the ocean and depict a stark contrast in microbial traits between early and mature plastic biofilm stages. These data further suggest that emergent plastic biofilm properties can be forecasted across environmental gradients, with the largescale genomic characteristics of early colonizers varying little across conditions. Chapter I of this thesis is an introduction to the current body of work regarding the plastisphere. Chapter II explores the ‘cradle to grave’ fragmentation, transformation, and transport of model microplastic particles and single-use plastic items in an artificial beach setting. Chapter III presents the first metagenomic insights into early biofilm formation on virgin microplastic surfaces in the marine environment and how early colonizers self-assemble, compared to mature, taxonomically, and metabolically diverse biofilms residing on free-drifting plastic pollution. Chapter IV further investigates microbial adaptations for initial colonization of virgin control and plastic surfaces and examines biofilm assemblage dynamics by employing metagenomics on a 16-day time series in a wastewater treatment facility. Chapter V synthesizes observations from the previous core chapters and discusses what these findings mean in a broader ecological and evolutionary perspective. Appendix 1 is a reprint of the manuscript describing the distribution of microplastics beneath the inner and outer plastic accumulation zones of the South Atlantic Subtropical Gyre. Appendix 2 is a submitted manuscript detailing the isolation, characterization, and selective adaptations of Vibrio bacteria colonizing eel leptocephali, free-drifting plastic pollution, Sargassum, and seawater in the North Atlantic Ocean.
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Date Issued
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2023
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PURL
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http://purl.flvc.org/fau/fd/FA00014127
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Subject Headings
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Plastic scrap, Plastic scrap--Environmental aspects, Biofilms, Fragmentation (Chemistry)
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Format
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Document (PDF)
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Title
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Biofilm Detection through the use of Factor Analysis and Principal Component Analysis.
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Creator
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Gallant, Richard, Bloetscher, Frederick, Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
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Abstract/Description
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Safe drinking water is paramount to a healthy society. Close to a hundred contaminants are regulated by the government. Utilities are using chloramines to disinfect water to reduce harmful byproducts that may present themselves with the use of chlorine alone. Using chlorine and ammonia to disinfect, ammonia oxidizing bacteria can present themselves in an unsuspecting utilities distribution network.
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Date Issued
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2019
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PURL
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http://purl.flvc.org/fau/fd/FA00013309
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Subject Headings
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Biofilms, Factor analysis, Principal components analysis, Drinking water--Analysis, Nitrification
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Format
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Document (PDF)