Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Derivative reflectance spectroscopy (2)
- Fixed platform sensing (2)
- Hyperspectral remote sensing (2)
- Multispectral imagery (2)
- Remote sensing (2)
-
- Satellite imagery (2)
- Shallow subsurface sensing (2)
- Water quality (2)
- Amphibalanus amphitrite (1)
- Amphibalanus eburneus (1)
- Banana River (1)
- Barnacle (1)
- Bayesian-risk model; Caribbean; climate; coral diseases; disease model; hotspot; relative risk; spatial density; white-band disease; yellow-band disease. (1)
- Copper Tolerance (1)
- Georeferenced imagery (1)
- Geospatial mapping application (1)
- Image rectification (1)
- Indian River Lagoon (1)
- Mesocosm (1)
- Oblique imagery (1)
- Oblique imaging (1)
- Pumpjet propulsor; Numerical investigation; Tip clearance characteristic; Tip leakage vortex; Tip clearance size (1)
- Recruitment (1)
- Seagrasses (1)
- Submerged vegetation (1)
- Toxicity (1)
- Water (1)
- Publication
- Publication Type
Articles 1 - 11 of 11
Full-Text Articles in Entire DC Network
St. Lucie Shoal Complex: Regional Sediment Resource Or Submerged Storm Breakwater, Leaf Erickson
St. Lucie Shoal Complex: Regional Sediment Resource Or Submerged Storm Breakwater, Leaf Erickson
Theses and Dissertations
Nearshore sand shoals have become the predominant sediment resource for beach nourishment projects on the east coast of Florida. Along this coast, the St. Lucie Shoal Complex (SLSC) is comprised of several shoals designated as sediment resources for beach nourishment, many having depths less than 7 meters, at their crests. This group of shoals represents the largest high-quality beach nourishment sediment resource in southeast Florida. Among these shoals, the St. Lucie shoal is the largest and shallowest at the crest. This project explores the current best practice methodologies to explore impacts of excavating sand resources from shallow-crested shoal systems like …
Copper Tolerance Of Amphibalanus Amphitrite As Observed In Central Florida, Hannah Grace Brinson
Copper Tolerance Of Amphibalanus Amphitrite As Observed In Central Florida, Hannah Grace Brinson
Theses and Dissertations
Copper tolerance in the invasive barnacle Amphibalanus amphitrite has been observed in Florida by the Center for Corrosion and Biofouling Control since 2012 and by Weiss (1947). To test the theory that this barnacle preferentially settles on copper coated surfaces to avoid settlement competition by other sessile species, a series of two experiments and a literature review of historical copper toxicity tests on larval barnacles was conducted. The barnacle A amphitrite was preferentially used in many previous toxicity studies because it is readily available, has high fecundity, and is more sensitive to some toxicants than other species, including the native …
Distributions Of Polychaetes As A Function Of Sediment Composition In A Subtropical Lagoon, Anthony William Cox
Distributions Of Polychaetes As A Function Of Sediment Composition In A Subtropical Lagoon, Anthony William Cox
Theses and Dissertations
Fine-grained organic-rich sediments (FGORS) in the Indian River Lagoon (IRL), Florida, the human activities and nutrient inputs and have a varied composition, including water content, silt-clay content, and organic matter. When these constituents reach, by weight, 75%, 60% dry, and 10% dry, respectively, this is sometimes referred to as IRL “muck”. Many polychaetes inhabit the benthic sediments of estuaries and must tolerate various degrees of FGORS. The Cox IRL Muck Index (CMI) is proposed as a mechanism for determining the organic sediment tolerances of infaunal species in a simple and direct manner. IRL muck will have a minimum CMI of …
Redox-Mediated Quorum Sensing In Plants, Alexandra W. Fuller, Phoebe Young, B. Daniel Pierce, Jamie Kitson-Finuff, Purvi Jain, Karl Schneider, Stephen Lazar, Olga Teran, Andrew G. Palmer, David G. Lynn
Redox-Mediated Quorum Sensing In Plants, Alexandra W. Fuller, Phoebe Young, B. Daniel Pierce, Jamie Kitson-Finuff, Purvi Jain, Karl Schneider, Stephen Lazar, Olga Teran, Andrew G. Palmer, David G. Lynn
Ocean Engineering and Marine Sciences Faculty Publications
The rhizosphere, the narrow zone of soil around plant roots, is a complex network of interactions between plants, bacteria, and a variety of other organisms. The absolute dependence on host-derived signals, or xenognosins, to regulate critical developmental checkpoints for host commitment in the obligate parasitic plants provides a window into the rhizosphere's chemical dynamics. These sessile intruders use H2O2 in a process known as semagenesis to chemically modify the mature root surfaces of proximal host plants and generate p-benzoquinones (BQs). The resulting redox-active signaling network regulates the spatial and temporal commitments necessary for host attachment. Recent evidence from non-parasites, including …
Novel Hyperspectral Imagery And Platforms For Shallow Water Environments, Taylor Scott Oney
Novel Hyperspectral Imagery And Platforms For Shallow Water Environments, Taylor Scott Oney
Theses and Dissertations
Hyperspectral measurements of the water surface in urban coastal waters are presented. Oblique bidirectional reflectance factor (BRF) imagery was acquired of coastal shallow waters within the watershed of the Indian River Lagoon, Florida and along littoral zone waters of the nearby Atlantic Ocean. Oblique imagery of the shoreline and subsurface features clearly shows subsurface bottom features and rip current features within the surf zone water column. The imagery was collected using a pushbroom hyperspectral imager mounted on a fixed platform with a calibrated circular mechatronic rotation stage. Hyperspectral imaging using the fixed platform techniques were used to calculate hyperspectral bidirectional …
Timing And Locations Of Reef Fish Spawning Off The Southeastern United States, Nicholas A. Farmer, William D. Heyman, Mandy Kamauskas, Shinichi Kobara, Tracey I. Smart, Joseph C. Ballenger, Marcel J. M. Reichert, David M. Wyanski, Michelle S. Tishler, Kenyon C. Lindeman, Susan K. Lowerre-Barbieri, Theodore S. Switzer, Justin J. Solomon, Kyle Mccain, Mark Marhefka, George R. Sedberry
Timing And Locations Of Reef Fish Spawning Off The Southeastern United States, Nicholas A. Farmer, William D. Heyman, Mandy Kamauskas, Shinichi Kobara, Tracey I. Smart, Joseph C. Ballenger, Marcel J. M. Reichert, David M. Wyanski, Michelle S. Tishler, Kenyon C. Lindeman, Susan K. Lowerre-Barbieri, Theodore S. Switzer, Justin J. Solomon, Kyle Mccain, Mark Marhefka, George R. Sedberry
Ocean Engineering and Marine Sciences Faculty Publications
Managed reef fish in the Atlantic Ocean of the southeastern United States (SEUS) support a multi-billion dollar industry. There is a broad interest in locating and protecting spawning fish from harvest, to enhance productivity and reduce the potential for overfishing. We assessed spatiotemporal cues for spawning for six species from four reef fish families, using data on individual spawning condition collected by over three decades of regional fishery-independent reef fish surveys, combined with a series of predictors derived from bathymetric features. We quantified the size of spawning areas used by reef fish across many years and identified several multispecies spawning …
Coral Disease Hotspots In The Caribbean, Robert Van Woesik, Carly J. Randall
Coral Disease Hotspots In The Caribbean, Robert Van Woesik, Carly J. Randall
Ocean Engineering and Marine Sciences Faculty Publications
Recent outbreaks of coral diseases in the Caribbean have been linked to increasingly stressful sea-surface temperatures (SSTs). Yet, ocean warming is spatially heterogeneous and therefore has the potential to lead to hotspots of disease activity. Here, we take an epidemiological approach to examine spatial differences in the risk of white-band disease on Acropora spp. and yellow-band disease on Orbicella spp. in the Caribbean. Our analysis involved examining the spatial patterns of disease prevalence, and creating a Bayesian-risk model that tested for regional differences in disease risk. The spatial examination of disease prevalence showed several clusters of white-band disease, including high …
Bumper V1.0: A Bayesian User-Friendly Model For Palaeo-Environmental Reconstruction, Philip B. Holden, H. John B. Birks, Stephen J. Brooks, Mark B. Bush, Grace M. Hwang, Frazer Matthews-Bird, Bryan G. Valencia, Robert Van Woeslk
Bumper V1.0: A Bayesian User-Friendly Model For Palaeo-Environmental Reconstruction, Philip B. Holden, H. John B. Birks, Stephen J. Brooks, Mark B. Bush, Grace M. Hwang, Frazer Matthews-Bird, Bryan G. Valencia, Robert Van Woeslk
Ocean Engineering and Marine Sciences Faculty Publications
We describe the Bayesian user-friendly model for palaeo-environmental reconstruction (BUMPER), a Bayesian transfer function for inferring past climate and other environmental variables from microfossil assemblages. BUMPER is fully self-calibrating, straightforward to apply, and computationally fast, requiring ~2 s to build a 100- taxon model from a 100-site training set on a standard personal computer. We apply the model’s probabilistic framework to generate thousands of artificial training sets under ideal assumptions. We then use these to demonstrate the sensitivity of reconstructions to the characteristics of the training set, considering assemblage richness, taxon tolerances, and the number of training sites. We find …
Numerical Investigations Of Tip Clearance Flow Characteristics Of A Pumpjet Propulsor, Lin Lu, Yuefei Gao, Qiang Li, Lin Du
Numerical Investigations Of Tip Clearance Flow Characteristics Of A Pumpjet Propulsor, Lin Lu, Yuefei Gao, Qiang Li, Lin Du
Ocean Engineering and Marine Sciences Faculty Publications
In this study, numerical investigations of the tip clearance flow characteristics of a pumpjet propulsor based on Computational Fluid Dynamics (CFD) method have been presented. The Zwart-Gerber-Belamri (Z-G-B) cavitation model based on Reynolds Averaged NaviereStokes (RANS) method is employed. The structured gird is applied. The formation and development of the tip clearance flows has been investigated and presented. The structure of the tip leakage vortex has been shown. The radial distributions of different velocity components with different Span along the axial direction have been carried out to present the influence of the tip clearance flow on the main flow. In …
Hyperspectral Signatures And Worldview-3 Imagery Of Indian River Lagoon And Banana River Estuarine Water And Bottom Types, Charles R. Bostater Jr., Taylor S. Oney, Tyler Rotkiske, Samin Aziz, Charles Morrisette, Kelby Callahan, Devin Mcallister
Hyperspectral Signatures And Worldview-3 Imagery Of Indian River Lagoon And Banana River Estuarine Water And Bottom Types, Charles R. Bostater Jr., Taylor S. Oney, Tyler Rotkiske, Samin Aziz, Charles Morrisette, Kelby Callahan, Devin Mcallister
Ocean Engineering and Marine Sciences Faculty Publications
Hyperspectral signatures and imagery collected during the spring and summer of 2017 and 2016 are presented. Ground sampling distances (GSD) and pixel sizes were sampled from just over a meter to less than 4.0 mm. A pushbroom hyperspectral imager was used to calculate bidirectional reflectance factor (BRF) signatures. Hyperspectral signatures of different water types and bottom habitats such as submerged seagrasses, drift algae and algal bloom waters were scanned using a high spectral and digital resolution solid state spectrograph. WorldView-3 satellite imagery with minimal water wave sun glint effects was used to demonstrate the ability to detect bottom features using …
Collection And Corrections Of Oblique Multiangle Hyperspectral Bidirectional Reflectance Imagery Of The Water Surface, Charles R. Bostater Jr., Taylor S. Oney
Collection And Corrections Of Oblique Multiangle Hyperspectral Bidirectional Reflectance Imagery Of The Water Surface, Charles R. Bostater Jr., Taylor S. Oney
Ocean Engineering and Marine Sciences Faculty Publications
Hyperspectral images of coastal waters in urbanized regions were collected from fixed platform locations. Surf zone imagery, images of shallow bays, lagoons and coastal waters are processed to produce bidirectional reflectance factor (BRF) signatures corrected for changing viewing angles. Angular changes as a function of pixel location within a scene are used to estimate changes in pixel size and ground sampling areas. Diffuse calibration targets collected simultaneously from within the image scene provides the necessary information for calculating BRF signatures of the water surface and shorelines. Automated scanning using a pushbroom hyperspectral sensor allows imagery to be collected on the …