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Full-Text Articles in Marine Biology

A Forensic Assessment Of Current Water Quality Using Idexx Techniques In The Himmarshee Canal And New River In Fort Lauderdale, Florida, Catherine Margaret Bilodeau Apr 2023

A Forensic Assessment Of Current Water Quality Using Idexx Techniques In The Himmarshee Canal And New River In Fort Lauderdale, Florida, Catherine Margaret Bilodeau

All HCAS Student Capstones, Theses, and Dissertations

Fecal contamination has continued to plague local communities around the United States and the world, especially in highly populated areas like Southern Florida. Newer techniques are beginning to be used to track microbes properly as they are found in waterways. Some more recent techniques in Microbial Source Tracking (MST) use IDEXX kits to detect fecal indicator bacteria (FIB). Two IDEXX kits Colilert-18® which detects total coliforms and Escherichia coli in water or fecal coliforms in wastewater, and Enterolert®, which targets enterococci, were used in the waterways of the Himmarshee Canal and South Fork of the New River …


Investigation Of Sulfur Cycling In Marine Sponge Cinachyrella Spp. From A South Florida Reef, Shelby K. Cain Dec 2020

Investigation Of Sulfur Cycling In Marine Sponge Cinachyrella Spp. From A South Florida Reef, Shelby K. Cain

All HCAS Student Capstones, Theses, and Dissertations

Symbionts within marine sponges are actively participating in the biogeochemical cycles. Among them, the role of symbiont microbes in the sulfur cycle remains a mystery. This study measured the abundance of microbes within the genus Cinachyrella before and after exposure to hydrogen sulfide. A four-part study was conducted: a) five-hour drop experiments, b) vertical distribution experiments, c) five-hour uptake experiments, and d) long-term exposure experiments. The five-hour drop experiment utilized a microsensor to measure sulfide levels, which was lowered 1.0 mm every thirty minutes for a total of 5 hours. Three trials were performed, each with one sponge and a …