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Articles 1 - 13 of 13
Full-Text Articles in Life Sciences
Change And Stasis Of Distinct Sediment Microbiomes Across Port Everglades Inlet (Pei) And The Adjacent Coral Reefs, Lauren E. Krausfeldt, Jose V. Lopez, Catherine Bilodeau, Hyo Won Lee, Shelby L. Casali
Change And Stasis Of Distinct Sediment Microbiomes Across Port Everglades Inlet (Pei) And The Adjacent Coral Reefs, Lauren E. Krausfeldt, Jose V. Lopez, Catherine Bilodeau, Hyo Won Lee, Shelby L. Casali
Biology Faculty Articles
Deep water ports are human built coastal structures that by definition welcome ship traffic and disturbance. Evidence is accumulating that enhanced port activities such as dredging or deepening have negatively affected nearby natural habitats. Port Everglades Inlet (PEI) is a large active South Florida cargo port for over two million people and lies adjacent to coral reefs, dwindling mangroves, and recreational beaches. In this study, the microbial communities of PEI and adjacent reef sediments were characterized to serve as indicators for change due to dredging and assess anthropogenic influence on these sensitive ecosystems by sequencing the V4 region of 16S …
Evaluation Of Nearshore Carbonate Chemistry Within Major Navigational Inlets Of The Kristin Jacobs Coral Reef Ecosystem Conservation Area, Harrison Davis
Evaluation Of Nearshore Carbonate Chemistry Within Major Navigational Inlets Of The Kristin Jacobs Coral Reef Ecosystem Conservation Area, Harrison Davis
All HCAS Student Capstones, Theses, and Dissertations
The absorption of atmospheric carbon dioxide (CO2) by ocean surface water is causing ocean acidification (OA), a process by which the reaction between water and CO2 changes ocean carbonate chemistry. Predictions of OA trajectories modeled by the Intergovernmental Panel on Climate Change (IPCC) are based on open ocean trends and may not accurately predict changes to variable nearshore ecosystems. The dynamic nature of nearshore ocean chemistry, and prevalence of OA vulnerable species within these ecosystems complicates the process of making accurate OA impact predictions within the coastal zone. Florida’s coral reef is a nearshore ecosystem vulnerable to …
Microbiome Diversity Of Coastal Tidal Floodwater In Southeastern Florida, Marissa Wickes
Microbiome Diversity Of Coastal Tidal Floodwater In Southeastern Florida, Marissa Wickes
HCNSO Student Theses and Dissertations
Over 3.7 million people are in high risk of coastal flooding and live within 1 mile of high tide in the US alone. The Atlantic coast is one of the most vulnerable areas due to its low elevation, large population, and economic importance (Bray, et. al, 2016). Coastal municipalities in the region of Southeast Florida, such as the cities of Miami, Miami Beach, Fort Lauderdale, etc., are at especial risk from coastal flooding related to sea level rise. The US National Climate Assessment has named Miami, Florida as the economically most vulnerable city impacted by this sea level rise …
Caecidae (Mollusca: Gastropoda) In Broward County, Florida, Andres S. Lester-Coll
Caecidae (Mollusca: Gastropoda) In Broward County, Florida, Andres S. Lester-Coll
HCNSO Student Theses and Dissertations
Caecidae is a widespread family of minute gastropod snails. Although a few species have previously been found in abundance in a few localized studies in Broward County waters, little is known about their richness, diversity, abundance and distribution in different habitats throughout local waters. This project examined species assemblages both qualitatively and quantitatively in a range of benthic habitats across Broward County. Samples were collected from five different habitat types from northern and southern Broward Country, and included two of each of the following five sites: mangrove, Intracoastal Waterway, creek, reef and rubble. Caecid specimens were removed from general samples, …
A Picture Is Worth A Thousand Words: Using Anecdotal Data And Photographic Evidence To Obtain Baseline Data For Southeast Florida Reefs, Catherine Brady
A Picture Is Worth A Thousand Words: Using Anecdotal Data And Photographic Evidence To Obtain Baseline Data For Southeast Florida Reefs, Catherine Brady
HCNSO Student Capstones
By using first-hand accounts, interviews, and photographs from fishermen throughout the region (Martin, Palm Beach and Broward counties), this paper will provide evidence of changes in recreational fish catches. It will also identify a shift in commonly caught fish species, factors that affect the head boat business, environmental changes and suggestions for management. Head boat fishing is a favorable activity for tourists and regular anglers in the state as well as the region. Upon returning from their day trip, companies often provide photo opportunities to display the day’s catch, as part of the fishing experience. Companies that have been around …
Dynamics Of Marine Bacterial Community Diversity Of The Coastal Waters Of The Reefs, Inlets, And Wastewater Outfalls Of Southeast Florida, Alexandra Mandina Campbell, Jay Fleisher, Christopher D. Sinigalliano, James R. White, Jose V. Lopez
Dynamics Of Marine Bacterial Community Diversity Of The Coastal Waters Of The Reefs, Inlets, And Wastewater Outfalls Of Southeast Florida, Alexandra Mandina Campbell, Jay Fleisher, Christopher D. Sinigalliano, James R. White, Jose V. Lopez
Marine & Environmental Sciences Faculty Articles
Coastal waters adjacent to populated southeast Florida possess different habitats (reefs, oceanic inlets, sewage outfalls) that may affect the composition of their inherent microbiomes. To determine variation according to site, season, and depth, over the course of 1 year, we characterized the bacterioplankton communities within 38 nearshore seawater samples derived from the Florida Area Coastal Environment (FACE) water quality survey. Six distinct coastal locales were profiled – the Port Everglades and Hillsboro Inlets, Hollywood and Broward wastewater outfalls, and associated reef sites using culture-independent, high-throughput pyrosequencing of the 16S rRNA V4 region. More than 227,000 sequences helped describe longitudinal taxonomic …
Computer Modeling The Incursion Patterns Of Marine Invasive Species, Matthew W. Johnston
Computer Modeling The Incursion Patterns Of Marine Invasive Species, Matthew W. Johnston
HCNSO Student Theses and Dissertations
Abstract Not Available.
Predicting Carbon Isotope Discrimination In Eelgrass (Zostera Marina L.) From The Environmental Parameters- Light, Flow, And [Dic], Meredith L. Mcpherson, Richard C. Zimmerman, Victoria J. Hill
Predicting Carbon Isotope Discrimination In Eelgrass (Zostera Marina L.) From The Environmental Parameters- Light, Flow, And [Dic], Meredith L. Mcpherson, Richard C. Zimmerman, Victoria J. Hill
OES Faculty Publications
Isotopic discrimination against 13C during photosynthesis is determined by a combination of environmental conditions and physiological mechanisms that control delivery of CO2 to RUBISCO. This study investigated the effects of light, flow, dissolved inorganic carbon (DIC) concentration, and its speciation, on photosynthetic carbon assimilation of Zostera marinaL. (eelgrass) using a combination of laboratory experiments and theoretical calculations leading to a mechanistic understanding of environmental conditions that influence leaf carbon uptake and determine leaf stable carbon isotope signatures δ13C. Photosynthesis was saturated with respect to flow at low velocity ~ 3 cm s-1, but …
Assessment Of Macroinvertebrate Communities And Heavy Metal Contamination Along The Intracoastal Waterway In Fort Lauderdale, Florida, Robert Bernhard
Assessment Of Macroinvertebrate Communities And Heavy Metal Contamination Along The Intracoastal Waterway In Fort Lauderdale, Florida, Robert Bernhard
HCNSO Student Theses and Dissertations
Sediments from four areas adjacent to marinas and a background site in the Intracoastal Waterway were assessed for macroinvertebrate composition and heavy metal contamination. Sediment core samples were collected in 2004 and 2005 for analyses of macroinvertebrate composition and sediment grain size. Additional sediment samples were collected in 2005 for chemical analyses of metals (Al, As, Cd, Cr, Cu, Fe, Pb, Hg, Ni and Zn). MANOVA and dendograms using Bray-Curtis similarity matrices grouped the sites into two clusters: the 3 sites closest to the New River formed one group, and the two end sites formed the other. The sites nearest …
Distribution Of Parasitic Isopods On Caridean Shrimp In South Florida Seagrass Beds, Sarah A. Briggs
Distribution Of Parasitic Isopods On Caridean Shrimp In South Florida Seagrass Beds, Sarah A. Briggs
HCNSO Student Theses and Dissertations
Caridean shrimp are a prominent element of seagrass faunal communities and play an important role in the energy transfer between trophic levels. They are a food source for other organisms and play an integral role in the ecosystem by feeding on algae and assisting with the breakdown of organic matter. Carideans are also fundamental to the marine fishery industry in that they are a food source for potentially valuable juvenile commercial fish. Ectoparasitic isopods (Cymothoida: Bopyridae) that infest caridean shrimps decrease the energy level of the shrimp, resulting in slower reaction time, greater predation rate, slower growth rate, and/or reduced …
Δ13c Is A Signature Of Light Availability And Photosynthesis In Seagrass, Xingping Hu, David J. Burdige, Richard C. Zimmerman
Δ13c Is A Signature Of Light Availability And Photosynthesis In Seagrass, Xingping Hu, David J. Burdige, Richard C. Zimmerman
OES Faculty Publications
We explored the role of light-saturated (carbon-limited) photosynthesis on δ¹³C of turtlegrass (Thalassia testudinum Banks ex Konig) populations from the clear, blue waters of the Great Bahama Bank and the turbid, green waters of Florida Bay using field observations and radiative transfer models. Consistent with numerous previous observations, leaf δ¹³C decreased significantly with water depth in both regions. However the δ¹³C for Bahamas turtlegrass was 3 parts per thousand heavier than that for Florida Bay turtlegrass at equivalent depths, and broadband irradiance explained even less of the δ¹³C variations than depth. Instead, leaf δ¹³C showed a stronger relationship to …
Interpretation Of Single-Beam Acoustic Backscatter Using Lidar-Derived Topographic Complexity And Benthic Habitat Classifications In A Coral Reef Environment, Greg Foster, Brian K. Walker, Bernhard Riegl
Interpretation Of Single-Beam Acoustic Backscatter Using Lidar-Derived Topographic Complexity And Benthic Habitat Classifications In A Coral Reef Environment, Greg Foster, Brian K. Walker, Bernhard Riegl
Marine & Environmental Sciences Faculty Articles
Producing thematic coral reef benthic habitat maps from single-beam acoustic backscatter has been hindered by uncertainties in interpreting the acoustic energy parameters E1 (tail of 1st echo) and E2 (complete 2nd echo), typically limiting such maps to sediment classification schemes. In this study, acoustic interpretation was guided by high-resolution lidar (LIght Detection And Ranging) bathymetry. Each acoustic record, acquired from a BioSonics DT-X echosounder and multiplexed 38 and 418 kHz transducers, was paired with a spatially-coincident value of a lidar-derived proxy for topographic complexity, reef-volume (RV), and its membership to one of eight benthic habitat classes, delineated from lidar imagery, …
A New Species Of Protanaissus Sieg, 1982 (Crustacea: Tanaidacea: Peracarida), From South Florida, Kim Larsen, Richard W. Heard
A New Species Of Protanaissus Sieg, 1982 (Crustacea: Tanaidacea: Peracarida), From South Florida, Kim Larsen, Richard W. Heard
Gulf and Caribbean Research
A new nototanaid species, Protanaissus floridensis, is described from Biscayne Bay in southeastern Florida. Specimens were collected at a depth of 7 m in muddy sand substrata with associated aquatic vegetation (Thalassia testudinum). Protanaissus floridensis, which represents only the 4th species referable to the genus, is the first species of Protanaissus Sieg, 1982, known from the northern hemisphere. The new species is distinguished from the other 3 species of Protanaissus by 1) the dactylus of pereopod 1 shorter than combined length of propodus and carpus, 2) the dactylus of the cheliped with proximal spine on inner …