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Articles 1 - 30 of 63
Full-Text Articles in Life Sciences
Shadowed Image Particle Profiling Evaluation Recorder (Sipper) Plankton And Marine Snow Abundance And Distribution Data Collected Aboard Multiple Research Cruises In The Northeastern Gulf Of Mexico From 2010-05-12 To 2010-09-16, Kendra L. Daly, Andrew W. Remsen, Kurt Kramer
Shadowed Image Particle Profiling Evaluation Recorder (Sipper) Plankton And Marine Snow Abundance And Distribution Data Collected Aboard Multiple Research Cruises In The Northeastern Gulf Of Mexico From 2010-05-12 To 2010-09-16, Kendra L. Daly, Andrew W. Remsen, Kurt Kramer
C-IMAGE data
This dataset contains the abundance and distribution of marine snow, phytoplankton, zooplankton, and larval fish, along with environmental parameters, collected aboard several research vessels (RV Weatherbird II, MV Specialty Diver, RV Gordon Gunter) in the northeastern Gulf of Mexico from 2010-05-12 to 2010-09-16. A high speed Dalsa Piranha-2 line-scan camera and a pseudo-collimated LED generated light sheet was used to image the shadows and outlines of resolvable particles that passed through a 100 cm2 field of view. The operational optical resolution of the system was ~65 um. The camera was towed at speeds between 2-3 knots in an oblique profile …
Regeneration Of Macronutrients And Trace Metals During Phytoplankton Decay: An Experimental Study, Adrienne P. Hollister, Makenzie Kerr, Kema Malki, Eric Muhlbach, Maya Robert, Charles L. Tilney, Mya Breitbart, Katherine A. Hubbard, Kristen N. Buck
Regeneration Of Macronutrients And Trace Metals During Phytoplankton Decay: An Experimental Study, Adrienne P. Hollister, Makenzie Kerr, Kema Malki, Eric Muhlbach, Maya Robert, Charles L. Tilney, Mya Breitbart, Katherine A. Hubbard, Kristen N. Buck
Marine Science Faculty Publications
Macronutrients and trace metals are incorporated into phytoplankton during growth and regenerated back into the water column when phytoplankton decay, a process that contributes to the distributions of dissolved trace metals and macronutrients in depth profiles. To study this, we incubated mixed Gulf of Mexico phytoplankton assemblages and monocultures of the diatom Pseudo-nitzschia dolorosa and the dinoflagellate Karenia brevis in the dark. Over 6 months, macronutrients (phosphate, silicic acid, nitrate + nitrite, nitrite, ammonium), chlorophyll-a, particulate organic carbon and nitrogen, and prokaryotes were monitored alongside dissolved manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd), …
Dna Barcoding Of Fish Eggs Collected Aboard R/V Weatherbird Ii Cruise Wb1731 Across The Florida Straits And Off Of Northwestern Cuba From 2017-05-13 To 2017-05-25, Makenzie Kerr, Mya Breitbart, Steven Murawski, Ernst B. Peebles, Maickel Armenteros, Jeremy Browning, Eva-Maria Bønnelycke, Chuanmin Hu, Yingjun Zhang
Dna Barcoding Of Fish Eggs Collected Aboard R/V Weatherbird Ii Cruise Wb1731 Across The Florida Straits And Off Of Northwestern Cuba From 2017-05-13 To 2017-05-25, Makenzie Kerr, Mya Breitbart, Steven Murawski, Ernst B. Peebles, Maickel Armenteros, Jeremy Browning, Eva-Maria Bønnelycke, Chuanmin Hu, Yingjun Zhang
C-IMAGE data
This dataset contains DNA barcoding results of fish eggs collected along the northwestern coast of Cuba and across the Florida Straits from 2017-05-13 to 2017-05-25 using bongo plankton nets. The dataset also includes cruise data from twenty-three different stations collected during R/V Weatherbird II cruise WB1731. Individual eggs were DNA barcoded to identify species of fish spawning in the area. This dataset supports the publication: Kerr, M., Browning, J., Bønnelycke, E.M., Zhang, Y., Hu, C., Armenteros, M., Murawski, S., Peebles, E. and Breitbart, M. (2020). DNA barcoding of fish eggs collected off northwestern Cuba and across the Florida Straits demonstrates …
Dna Barcoding Of Fish Eggs Collected Off Northwestern Cuba And Across The Florida Straits Demonstrates Egg Transport By Mesoscale Eddies, Makenzie Kerr, Jeremy Browning, Eva‐Maria Bønnelycke, Yingjun Zhang, Chuanmin Hu, Maickel Armenteros, Steven Murawski, Ernst B. Peebles, Mya Breitbart
Dna Barcoding Of Fish Eggs Collected Off Northwestern Cuba And Across The Florida Straits Demonstrates Egg Transport By Mesoscale Eddies, Makenzie Kerr, Jeremy Browning, Eva‐Maria Bønnelycke, Yingjun Zhang, Chuanmin Hu, Maickel Armenteros, Steven Murawski, Ernst B. Peebles, Mya Breitbart
Marine Science Faculty Publications
Identifying spawning sites for broadcast spawning fish species is a key element of delineating critical habitat for managing and regulating marine fisheries. Genetic barcoding has enabled accurate taxonomic identification of individual fish eggs, overcoming limitations of morphological classification techniques. In this study, planktonic fish eggs were collected at 23 stations along the northwestern coast of Cuba and across the Florida Straits to United States waters. A total of 564 fish eggs were successfully identified to 89 taxa within 30 families, with the majority of taxa being resolved to species. We provide new spawning information for Luvarus imperialis (Louvar), Bothus lunatus …
The Expanded Footprint Of The Deepwater Horizon Oil Spill In The Gulf Of Mexico Deep-Sea Benthos, Michael G. Reuscher, Jeffrey G. Baguley, Paul A. Montagna
The Expanded Footprint Of The Deepwater Horizon Oil Spill In The Gulf Of Mexico Deep-Sea Benthos, Michael G. Reuscher, Jeffrey G. Baguley, Paul A. Montagna
C-IMAGE Publications
The 2010 Deepwater Horizon blowout off the coast of Louisiana caused the largest marine oil spill on record. Samples were collected 2–3 months after the Macondo well was capped to assess damage to macrofauna and meiofauna communities. An earlier analysis of 58 stations demonstrated severe and moderate damage to an area of 148 km2. An additional 58 archived stations have been analyzed to enhance the resolution of that assessment and determine if impacts occurred further afield. Impacts included high levels of total petroleum hydrocarbons (TPH) and polycyclic aromatic hydrocarbons (PAH) in the sediment, low diversity, low evenness, and …
Photic Stress On Coral Reefs In The Maldives: The Amphistegina Bleaching Index, Stephanie Stainbank, Silvia Spezzaferri, Valentina Beccari, Pamela Hallock, Arthur Adams, Auriele Angeloz, Daniela Basso, Annalisa Caragnano, Nicolo Del Piero, Patrick Dietsche
Photic Stress On Coral Reefs In The Maldives: The Amphistegina Bleaching Index, Stephanie Stainbank, Silvia Spezzaferri, Valentina Beccari, Pamela Hallock, Arthur Adams, Auriele Angeloz, Daniela Basso, Annalisa Caragnano, Nicolo Del Piero, Patrick Dietsche
Marine Science Faculty Publications
The Amphistegina Bleaching Index (ABI) was applied to three Maldivian reefs in the Rasdhoo and North Ari Atolls in 2018, during normal sea surface temperature conditions. This dataset was then compared with a 2015, pre-coral bleaching study. The results provide a context for the verification and application of the ABI in outlining the photo-inhibitory stress status of coral reefs outside of the Florida Reef Tract where it was originally developed. The sampling periods encompass different seasons and temperature regimes. The 2015 field sampling preceeded the El Niño induced, mass coral-bleaching events of 2015 and 2016. It was carried out in …
In Situ Measurements Of Circulation Features Influencing Cross-Shelf Transport Around Northwest Cuba, Matthieu Le Hénaff, Vassiliki H. Kourafalou, Yannis Androulidakis, Ryan H. Smith, Heesook Kang, Chuanmin Hu, John T. Lamkin
In Situ Measurements Of Circulation Features Influencing Cross-Shelf Transport Around Northwest Cuba, Matthieu Le Hénaff, Vassiliki H. Kourafalou, Yannis Androulidakis, Ryan H. Smith, Heesook Kang, Chuanmin Hu, John T. Lamkin
Marine Science Faculty Publications
We analyzed circulation processes sampled in the Gulf of Mexico in May 2016 by the National Oceanic and Atmospheric Administration (NOAA) Ship Nancy Foster. This data set is one of the first in situ surveys in Cuban waters available to the international community. Along northwest Cuba, these data suggested coastal upwelling and revealed, for the first time, a ~50 km diameter Cuban ANticyclonic (CubAN) eddy and a ~25 km diameter cyclonic eddy, which together advected upwelled waters offshore. The CubAN eddy was associated with downwelling, and the cyclonic eddy with upwelling. At the western tip of Cuba, local currents …
Multiple Hydrocarbon Data From Mangrove Forests Collected During A Coastal Survey Conducted In The Bay Of Campeche, Southern Gulf Of Mexico From 2016-08-09 To 2016-08-10, Isabel Romero, David Hollander
Multiple Hydrocarbon Data From Mangrove Forests Collected During A Coastal Survey Conducted In The Bay Of Campeche, Southern Gulf Of Mexico From 2016-08-09 To 2016-08-10, Isabel Romero, David Hollander
C-IMAGE data
This survey was conducted in mangrove forests from the Bay of Campeche (Mexico) in August 2016 to search for remnants of the Ixtoc-1 spill. This study focused on (1) the chemical composition and concentration of oil weathering products, (2) weathering processes, and (3) fate and potential toxicological impacts. This dataset contains hydrocarbon concentrations, date and location (longitude and latitude) of sample collection. The measurements of hydrocarbons were made using Agilent 7680B gas chromatograph coupled with an Agilent 7010 triple quadrupole mass spectrometer. This dataset supports the publication: Radović, J. R., Romero, I. C., Oldenburg, T. B. P., Larter, S. R., …
Responses Of Reef Bioindicators To Recent Temperature Anomalies In Distinct Areas Of The North Ari And Rasdhoo Atolls (Maldives), V. Beccari, S. Spezzaferri, S. Stainbank, Pamela Hallock, D. Basso, A. Caragnano, C. Pisapia, A. Adams, A. Angeloz, N. Del Piero
Responses Of Reef Bioindicators To Recent Temperature Anomalies In Distinct Areas Of The North Ari And Rasdhoo Atolls (Maldives), V. Beccari, S. Spezzaferri, S. Stainbank, Pamela Hallock, D. Basso, A. Caragnano, C. Pisapia, A. Adams, A. Angeloz, N. Del Piero
Marine Science Faculty Publications
Assessments of reef sediments in the North Ari Atoll (Maldives) were conducted in 2015 and 2018 on reefs of three islands with different management strategies: community, resort, and uninhabited. Indices applied were the Foraminifera in Reef Assessment and Monitoring Index (FI) and the Sediment Constituents Index (SI). Both indices are based on shells or fragments of functional groups, which for the FI are foraminiferal shells and for the SI are sediment components. The FI is considered to be an indicator of water quality and the SI an indicator of water quality, community structure, and processes such as grazing and bioerosion. …
Surface Runoff Alters Cave Microbial Community Structure And Function, Madison Davis, Maria A. Messina, Giuseppe Nicolosi, Salvatore Petralia, Melvin D. Baker, Christiana K. S. Mayne, Chelsea M. Dinon, Christina J. Moss, Bogdan P. Onac, James R. Garey
Surface Runoff Alters Cave Microbial Community Structure And Function, Madison Davis, Maria A. Messina, Giuseppe Nicolosi, Salvatore Petralia, Melvin D. Baker, Christiana K. S. Mayne, Chelsea M. Dinon, Christina J. Moss, Bogdan P. Onac, James R. Garey
Molecular Biosciences Faculty Publications
Caves formed by sulfuric acid dissolution have been identified worldwide. These caves can host diverse microbial communities that are responsible for speleogenesis and speleothem formation. It is not well understood how microbial communities change in response to surface water entering caves. Illumina 16S rRNA sequencing and bioinformatic tools were used to determine the impact of surface water on the microbial community diversity and function within a spring pool found deep in the Monte Conca Cave system in Sicily, Italy. Sulfur oxidizers comprised more than 90% of the microbial community during the dry season and were replaced by potential anthropogenic contaminants …
Influence Of Oil, Dispersant, And Pressure On Microbial Communities From The Gulf Of Mexico, Nuttapol Noirungsee, Steffen Hackbusch, Juan Viamonte, Paul Bubenheim, Andreas Liese, Rudolf Müller
Influence Of Oil, Dispersant, And Pressure On Microbial Communities From The Gulf Of Mexico, Nuttapol Noirungsee, Steffen Hackbusch, Juan Viamonte, Paul Bubenheim, Andreas Liese, Rudolf Müller
C-IMAGE Publications
The Deepwater Horizon incident in the Gulf of Mexico in 2010 released an unprecedented amount of petroleum hydrocarbons 1500 meters below the sea surface. Few studies have considered the influence of hydrostatic pressure on bacterial community development and activity during such spills. The goal of this study was to investigate the response of indigenous sediment microbial communities to the combination of increased pressure, hydrocarbons and dispersant. Deep-sea sediment samples collected from the northern Gulf of Mexico were incubated at atmospheric pressure (0.1 MPa) and at elevated pressure (10 MPa), with and without the addition of crude oil and dispersant. After …
A First Comprehensive Baseline Of Hydrocarbon Pollution In Gulf Of Mexico Fishes, Erin Pulster, Adolfo Gracia, Maickel Armenteros, Gerardo Toro-Farmer, Susan M. Snyder, Brigid Carr, Madison Schwaab, Tiffany Nicholson, Justin Mrowicki, Steven Murawski
A First Comprehensive Baseline Of Hydrocarbon Pollution In Gulf Of Mexico Fishes, Erin Pulster, Adolfo Gracia, Maickel Armenteros, Gerardo Toro-Farmer, Susan M. Snyder, Brigid Carr, Madison Schwaab, Tiffany Nicholson, Justin Mrowicki, Steven Murawski
C-IMAGE Publications
Despite over seven decades of production and hundreds of oil spills per year, there were no comprehensive baselines for petroleum contamination in the Gulf of Mexico (GoM) prior to this study. Subsequent to the 2010 Deepwater Horizon (DWH) spill, we implemented Gulf-wide fish surveys extending over seven years (2011–2018). A total of 2,503 fishes, comprised of 91 species, were sampled from 359 locations and evaluated for biliary polycyclic aromatic hydrocarbon (PAH) concentrations. The northern GoM had significantly higher total biliary PAH concentrations than the West Florida Shelf, and coastal regions off Mexico and Cuba. The highest concentrations of biliary PAH …
The Southern Gulf Of Mexico: A Baseline Radiocarbon Isoscape Of Surface Sediments And Isotopic Excursions At Depth, Samantha H Bosman, Patrick Schwing, Rebekka A. Larson, Natalie E. Wildermann, Gregg R. Brooks, Isabel Romero, Joan-Albert Sanchez-Cabeza, Ana Carolina Ruiz-Fernández, Maria Luisa Machain-Castillo, Adolfo Gracia, Elva Escobar-Briones, Steven Murawski, David Hollander, Jeffrey P. Chanton
The Southern Gulf Of Mexico: A Baseline Radiocarbon Isoscape Of Surface Sediments And Isotopic Excursions At Depth, Samantha H Bosman, Patrick Schwing, Rebekka A. Larson, Natalie E. Wildermann, Gregg R. Brooks, Isabel Romero, Joan-Albert Sanchez-Cabeza, Ana Carolina Ruiz-Fernández, Maria Luisa Machain-Castillo, Adolfo Gracia, Elva Escobar-Briones, Steven Murawski, David Hollander, Jeffrey P. Chanton
C-IMAGE Publications
The southern Gulf of Mexico (sGoM) is home to an extensive oil recovery and development infrastructure. In addition, the basin harbors sites of submarine hydrocarbon seepage and receives terrestrial inputs from bordering rivers. We used stable carbon, nitrogen, and radiocarbon analyses of bulk sediment organic matter to define the current baseline isoscapes of surface sediments in the sGoM and determined which factors might influence them. These baseline surface isoscapes will be useful for accessing future environmental impacts. We also examined the region for influence of hydrocarbon deposition in the sedimentary record that might be associated with hydrocarbon recovery, spillage and …
Changes In Reef Fish Community Structure Following The Deepwater Horizon Oil Spill, Justin P. Lewis, Joseph H. Tarnecki, Steven B. Garner, David D. Chagaris, William F. Patterson Iii
Changes In Reef Fish Community Structure Following The Deepwater Horizon Oil Spill, Justin P. Lewis, Joseph H. Tarnecki, Steven B. Garner, David D. Chagaris, William F. Patterson Iii
C-IMAGE Publications
Large-scale anthropogenic disturbances can have direct and indirect effects on marine communities, with direct effects often taking the form of widespread injury or mortality and indirect effects manifesting as changes in food web structure. Here, we report a time series that captures both direct and indirect effects of the Deepwater Horizon Oil Spill (DWH) on northern Gulf of Mexico (nGoM) reef fish communities. We observed significant changes in community structure immediately following the DWH, with a 38% decline in species richness and 26% decline in Shannon-Weiner diversity. Initial shifts were driven by widespread declines across a range of trophic guilds, …
Deepwater Horizon And The Rise Of The Omics, Joel E. Kostka, Samantha Joye, Rita Collwell
Deepwater Horizon And The Rise Of The Omics, Joel E. Kostka, Samantha Joye, Rita Collwell
C-IMAGE Publications
Microbial genomics techniques came of age following the Deepwater Horizon spill, offering researchers unparalleled insights into how ecosystems respond to such environmental disasters.
Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin Pulster, Steven Murawski
Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin Pulster, Steven Murawski
C-IMAGE Publications
A multinational demersal longline survey was conducted on the Gulf of Mexico continental shelf over the years 2015 and 2016 to generate a Gulf-wide baseline of polycyclic aromatic hydrocarbon (PAH) concentrations in demersal fishes. Tilefish (Lopholatilus chamaeleonticeps) were sampled in all regions of the Gulf of Mexico for biometrics, bile, and liver. Tilefish liver was also obtained from surveys in the northwest Atlantic Ocean for comparison. Liver tissues (n = 305) were analyzed for PAHs and select alkylated homologs using QuEChERS extractions and gas chromatography tandem mass spectrometry. Bile samples (n = 225) were analyzed for …
Chronic Pah Exposures And Associated Declines In Fish Health Indices Observed For Ten Grouper Species In The Gulf Of Mexico, Erin Pulster, Adolfo Gracia, Maickel Armenteros, Brigid Carr, Justin Mrowicki, Steven Murawski
Chronic Pah Exposures And Associated Declines In Fish Health Indices Observed For Ten Grouper Species In The Gulf Of Mexico, Erin Pulster, Adolfo Gracia, Maickel Armenteros, Brigid Carr, Justin Mrowicki, Steven Murawski
C-IMAGE Publications
Ten grouper species grouper (n = 584) were collected throughout the Gulf of Mexico (GoM) from 2011 through 2017 to provide information on hepatobiliary polycyclic aromatic hydrocarbon (PAH) concentrations in the aftermath of the Deepwater Horizon (DWH) oil spill. Liver and bile samples were analyzed for PAHs and their metabolites using triple quadrupole mass spectrometry (GC/MS/MS) and high-performance liquid chromatography with fluorescence detection (HPLC-F), respectively. Data were compared among species and sub-regions of the GoM to understand spatiotemporal exposure dynamics in these economically and ecologically important species. Significant differences in the composition and concentrations of PAHs were detected spatially, …
Multi-Sensor Observations Of Submesoscale Eddies In Coastal Regions, Gang Li, Yijun He, Guoqiang Liu, Yingjun Zhang, Chuanmin Hu, William Perrie
Multi-Sensor Observations Of Submesoscale Eddies In Coastal Regions, Gang Li, Yijun He, Guoqiang Liu, Yingjun Zhang, Chuanmin Hu, William Perrie
Marine Science Faculty Publications
The temporal and spatial variation in submesoscale eddies in the coastal region of Lianyungang (China) is studied over a period of nearly two years with high-resolution (0.03◦ , about 3 km) observations of surface currents derived from high-frequency coastal radars (HFRs). The centers and boundaries of submesoscale eddies are identified based on a vector geometry (VG) method. A color index (CI) representing MODIS ocean color patterns with a resolution of 500 m is used to compute CI gradient parameters, from which submesoscale features are extracted using a modified eddy-extraction approach. The results show that surface currents derived from HFRs and …
Future Vision For Autonomous Ocean Observations, Christopher Whitt, Jay Pearlman, Brian Polagye, Frank Caimi, Frank Muller-Karger, Andrea Copping, Heather Spence, Shyam Madhusudhana, William Kirkwood, Ludovic Grosjean, Bilal Muhammad Fiaz, Satinder Singh, Sikandra Singh, Dana Manalang, Ananya Sen Gupta, Alain Maguer, Justin J. H. Buck, Andreas Marouchos, Malayath Aravindakshan Atmanand, Ramasamy Venkatesan, Vedachalam Narayanaswamy, Pierre Testor, Elizabeth Douglas, Sebastien De Halleux, Siri Jodha Khalsa
Future Vision For Autonomous Ocean Observations, Christopher Whitt, Jay Pearlman, Brian Polagye, Frank Caimi, Frank Muller-Karger, Andrea Copping, Heather Spence, Shyam Madhusudhana, William Kirkwood, Ludovic Grosjean, Bilal Muhammad Fiaz, Satinder Singh, Sikandra Singh, Dana Manalang, Ananya Sen Gupta, Alain Maguer, Justin J. H. Buck, Andreas Marouchos, Malayath Aravindakshan Atmanand, Ramasamy Venkatesan, Vedachalam Narayanaswamy, Pierre Testor, Elizabeth Douglas, Sebastien De Halleux, Siri Jodha Khalsa
Marine Science Faculty Publications
Autonomous platforms already make observations over a wide range of temporal and spatial scales, measuring salinity, temperature, nitrate, pressure, oxygen, biomass, and many other parameters. However, the observations are not comprehensive. Future autonomous systems need to be more affordable, more modular, more capable and easier to operate. Creative new types of platforms and new compact, low power, calibrated and stable sensors are under development to expand autonomous observations. Communications and recharging need bandwidth and power which can be supplied by standardized docking stations. In situ power generation will also extend endurance for many types of autonomous platforms, particularly autonomous surface …
Detedit: A Graphical User Interface For Annotating And Editing Events Detected In Long-Term Acoustic Monitoring Data, Alba Solsona-Berga, Kaitlin E. Frasier, Simone Baumann-Pickering, Sean M. Wiggins, John A. Hildebrand
Detedit: A Graphical User Interface For Annotating And Editing Events Detected In Long-Term Acoustic Monitoring Data, Alba Solsona-Berga, Kaitlin E. Frasier, Simone Baumann-Pickering, Sean M. Wiggins, John A. Hildebrand
C-IMAGE Publications
Passive acoustic monitoring has become an important data collection method, yielding massive datasets replete with biological, environmental and anthropogenic information. Automated signal detectors and classifiers are needed to identify events within these datasets, such as the presence of species-specific sounds or anthropogenic noise. These automated methods, however, are rarely a complete substitute for expert analyst review. The ability to visualize and annotate acoustic events efficiently can enhance scientific insights from large, previously intractable datasets. A MATLAB-based graphical user interface, called DetEdit, was developed to accelerate the editing and annotating of automated detections from extensive acoustic datasets. This tool is highly-configurable …
Ocean Deoxygenation And Copepods: Coping With Oxygen Minimum Zone Variability, Karen F. Wishner, Brad Seibel, Dawn Outram
Ocean Deoxygenation And Copepods: Coping With Oxygen Minimum Zone Variability, Karen F. Wishner, Brad Seibel, Dawn Outram
Marine Science Faculty Publications
Increasing deoxygenation (loss of oxygen) of the ocean, including expansion of oxygen minimum zones (OMZs), is a potentially important consequence of global warming. We examined present-day variability of vertical distributions of 23 calanoid copepod species in the Eastern Tropical North Pacific (ETNP) living in locations with different water column oxygen profiles and OMZ intensity (lowest oxygen concentration and its vertical extent in a profile). Copepods and hydrographic data were collected in vertically stratified day and night MOCNESS (Multiple Opening/Closing Net and Environmental Sensing System) tows (0–1000 m) during four cruises over a decade (2007–2017) that sampled four ETNP locations: Costa …
Bioaccumulation And Biomagnification Of Potential Toxic Elements (Ptes): An Avicennia Germinans–Uca Rapax Trophic Transfer Story From Jobos Bay, Puerto Rico, Michael Martinez-Colon, Henry Alegria, Hatice Kubra-Gul, Ashley Huber, Perihan Kurt-Karakus
Bioaccumulation And Biomagnification Of Potential Toxic Elements (Ptes): An Avicennia Germinans–Uca Rapax Trophic Transfer Story From Jobos Bay, Puerto Rico, Michael Martinez-Colon, Henry Alegria, Hatice Kubra-Gul, Ashley Huber, Perihan Kurt-Karakus
USF St. Petersburg campus Faculty Publications
In southern Puerto Rico along the coastline bordering the Jobos Bay National Estuarine Research Reserve, environmental encroachment has exposed mangrove forest to different sources of pollution. Potentially toxic element concentrations from the F1Tess (exchangeable), F4Tess (oxidizable), mangrove leaf litter (MLL), and fiddler crab whole body soft tissue were analyzed to assess the fate and transport of pollutants from the environment and its transition into flora-fauna via trophic transfer. Geo-accumulation factor values suggest the bay has experienced limited to no pollution when combining the concentrations of potentially toxic elements extracted from the F1Tess and F4Tess sediment fractions. These geochemical sedimentary compartments …
Revealing The Former Bed Of Thwaites Glacier Using Sea-Floor Bathymetry: Implications For Warm-Water Routing And Bed Controls On Ice Flow And Buttressing, Kelly A. Hogan, Robert D. Larter, Alastair G. Graham, Robert Arthern, James D. Kirkham, Minzoni, Rebecca Totten Minzoni, Tom A. Jordan, Rachel Clark, Victoria Fitzgerald, Anna K. Wåhlin, John B. Anderson, Claus-Dieter Hillenbrand, Frank O. Nitsche, Lauren Simkins, James A. Smith, Karsten Gohl, Jan Erik Arndt, Jongkuk Hong, Julia Wellner
Revealing The Former Bed Of Thwaites Glacier Using Sea-Floor Bathymetry: Implications For Warm-Water Routing And Bed Controls On Ice Flow And Buttressing, Kelly A. Hogan, Robert D. Larter, Alastair G. Graham, Robert Arthern, James D. Kirkham, Minzoni, Rebecca Totten Minzoni, Tom A. Jordan, Rachel Clark, Victoria Fitzgerald, Anna K. Wåhlin, John B. Anderson, Claus-Dieter Hillenbrand, Frank O. Nitsche, Lauren Simkins, James A. Smith, Karsten Gohl, Jan Erik Arndt, Jongkuk Hong, Julia Wellner
Marine Science Faculty Publications
The geometry of the sea floor immediately beyond Antarctica’s marine-terminating glaciers is a fundamental control on warm-water routing, but it also describes former topographic pinning points that have been important for ice-shelf buttressing. Unfortunately, this information is often lacking due to the inaccessibility of these areas for survey, leading to modelled or interpolated bathymetries being used as boundary conditions in numerical modelling simulations. At Thwaites Glacier (TG) this critical data gap was addressed in 2019 during the first cruise of the International Thwaites Glacier Collaboration (ITGC) project. We present more than 2000 km2 of new multibeam echo-sounder (MBES) data acquired …
A Synthesis Of Deep Benthic Faunal Impacts And Resilience Following The Deepwater Horizon Oil Spill, Patrick T. Schwing, Paul A. Montagna, Samantha B. Joye, Claire B. Paris, Erik E. Cordes, Craig R. Mcclain, Joshua P. Kilborn, Steven A. Murawski
A Synthesis Of Deep Benthic Faunal Impacts And Resilience Following The Deepwater Horizon Oil Spill, Patrick T. Schwing, Paul A. Montagna, Samantha B. Joye, Claire B. Paris, Erik E. Cordes, Craig R. Mcclain, Joshua P. Kilborn, Steven A. Murawski
Marine Science Faculty Publications
The Deepwater Horizon (DWH) oil spill significantly impacted the northern Gulf of Mexico (nGoM) deep benthos (>125 m water depth) at different spatial scales and across all community size and taxa groups including microbes, foraminifera, meiofauna, macrofauna, megafauna, corals, and demersal fishes. The resilience across these communities was heterogeneous, with some requiring years if not decades to fully recover. To synthesize ecosystem impacts and recovery following DWH, the Gulf of Mexico Research Initiative (GOMRI) Core 3 synthesis group subdivided the nGoM into four ecotypes: coastal, continental shelf, open-ocean, and deep benthic. Here we present a synopsis of the deep …
Mg/Ca-Temperature Calibration Of Polar Benthic Foraminifera Species For Reconstruction Of Bottom Water Temperatures On The Antarctic Shelf, Elaine M. Mawbey, Katharine R. Hendry, Mervyn J. Greaves, Claus-Dieter Hillenbrand, Gerhard Kuhn, Charlotte L. Spencer-Jones, Erin L. Mcclymont, Kara J. Vadman, Amelia E. Shevenell, Patrycja E. Jernas, James A. Smith
Mg/Ca-Temperature Calibration Of Polar Benthic Foraminifera Species For Reconstruction Of Bottom Water Temperatures On The Antarctic Shelf, Elaine M. Mawbey, Katharine R. Hendry, Mervyn J. Greaves, Claus-Dieter Hillenbrand, Gerhard Kuhn, Charlotte L. Spencer-Jones, Erin L. Mcclymont, Kara J. Vadman, Amelia E. Shevenell, Patrycja E. Jernas, James A. Smith
Marine Science Faculty Publications
Benthic foraminifera Mg/Ca is a well-established bottom water temperature (BWT) proxy used in paleoclimate studies. The relationship between Mg/Ca and BWT for numerous species has been determined using core-top and culturing studies. However, the scarcity of calcareous microfossils in Antarctic shelf sediments and poorly defined calibrations at low temperatures has limited the use of the foraminiferal Mg/Ca paleothermometer in ice proximal Antarctic sediments. Here we present paired ocean temperature and modern benthic foraminifera Mg/Ca data for three species, Trifarina angulosa, Bulimina aculeata, and Globocassidulina subglobosa, but with a particular focus on Trifarina angulosa. The core-top data from several …
Eddy–Wave Duality In A Rotating Flow, Stefania Espa, Simon Cabanes, Gregory P. King, Gabriella Nitto, Boris Galperin
Eddy–Wave Duality In A Rotating Flow, Stefania Espa, Simon Cabanes, Gregory P. King, Gabriella Nitto, Boris Galperin
Marine Science Faculty Publications
A series of experiments with rotating, electromagnetically forced, turbulent flows were carried out at the Sapienza University of Rome to investigate the eddy–wave duality in flows with a β-effect and the electromagnetic force acting in the westward direction. When the β-effect is significant, i.e., as in planetary atmospheric and oceanic circulations, nonlinear eddy/wave interactions facilitate flow self-organization into zonal patterns in which Rossby waves and westward propagating cyclonic and anticyclonic eddies coexist. Upon time averaging, eddies disappear and the flow pattern transforms into a system of alternating zonal jets. What is the relationship between eddies, jets, and Rossby …
Observations Of Water Transparency In China’S Lakes From Space, Dong Liu, Hongtao Duan, Steven Loiselle, Chuanmin Hu, Guoqing Zhang, Junli Li, Hong Yang, Julian R. Thompson, Zhigang Cao, Ming Shen, Ronghua Ma, Min Zhang, Weixiao Han
Observations Of Water Transparency In China’S Lakes From Space, Dong Liu, Hongtao Duan, Steven Loiselle, Chuanmin Hu, Guoqing Zhang, Junli Li, Hong Yang, Julian R. Thompson, Zhigang Cao, Ming Shen, Ronghua Ma, Min Zhang, Weixiao Han
Marine Science Faculty Publications
Water transparency, usually denoted by Secchi disk depth (SSD), represents the first-order description of water quality and has important implications for the diversity and productivity of aquatic life. In China, lakes supply freshwater and ecosystem services to nearly a billion people. Therefore, real time monitoring of lake transparency is of great significance. Moreover, understanding how and why transparency varies in space and time in response to different driving forces is needed to understand, manage, and predict lake water quality. Based on the time-saving and low-cost Google Earth Engine cloud platform, this study developed a new algorithm for quickly mapping SDDs …
Prokaryotic And Viral Community Composition Of Freshwater Springs In Florida, Usa, Kema Malki, Natalie A. Sawaya, Anna J. Székely, Michael J. Tisza, Mya Breitbart
Prokaryotic And Viral Community Composition Of Freshwater Springs In Florida, Usa, Kema Malki, Natalie A. Sawaya, Anna J. Székely, Michael J. Tisza, Mya Breitbart
Marine Science Faculty Publications
Aquifers, which are essential underground freshwater reservoirs worldwide, are understudied ecosystems that harbor diverse forms of microbial life. This study investigated the abundance and composition of prokaryotic and viral communities in the outflow of five springs across northern Florida, USA, as a proxy of microbial communities found in one of the most productive aquifers in the world, the Floridan aquifer. The average abundances of virus-like particles and prokaryotic cells were slightly lower than those reported from other groundwater systems, ranging from 9.6 × 103 ml−1 to 1.1 × 105 ml−1 and 2.2 × 103 ml …
Environmental Dna Reveals Seasonal Shifts And Potential Interactions In A Marine Community, Anni Djurhuus, Collin J. Closek, Ryan P. Kelly, Kathleen J. Pitz, Reiko P. Michisaki, Hilary A. Starks, Kristine R. Walz, Elizabeth A. Andruszkiewicz, Emily Olesin, Katherine Hubbard, Enrique Montes, Daniel Otis, Frank E. Muller-Karger, Francisco P. Chavez, Alexandria B. Boehm, Mya Breitbart
Environmental Dna Reveals Seasonal Shifts And Potential Interactions In A Marine Community, Anni Djurhuus, Collin J. Closek, Ryan P. Kelly, Kathleen J. Pitz, Reiko P. Michisaki, Hilary A. Starks, Kristine R. Walz, Elizabeth A. Andruszkiewicz, Emily Olesin, Katherine Hubbard, Enrique Montes, Daniel Otis, Frank E. Muller-Karger, Francisco P. Chavez, Alexandria B. Boehm, Mya Breitbart
Marine Science Faculty Publications
Environmental DNA (eDNA) analysis allows the simultaneous examination of organisms across multiple trophic levels and domains of life, providing critical information about the complex biotic interactions related to ecosystem change. Here we used multilocus amplicon sequencing of eDNA to survey biodiversity from an eighteen-month (2015–2016) time-series of seawater samples from Monterey Bay, California. The resulting dataset encompasses 663 taxonomic groups (at Family or higher taxonomic rank) ranging from microorganisms to mammals. We inferred changes in the composition of communities, revealing putative interactions among taxa and identifying correlations between these communities and environmental properties over time. Community network analysis provided evidence …
Insights Into The Bioavailability Of Oceanic Dissolved Fe From Phytoplankton Uptake Kinetics, Yeala Shaked, Kristen N. Buck, Travis Mellett, Maria. T. Maldonado
Insights Into The Bioavailability Of Oceanic Dissolved Fe From Phytoplankton Uptake Kinetics, Yeala Shaked, Kristen N. Buck, Travis Mellett, Maria. T. Maldonado
Marine Science Faculty Publications
Phytoplankton growth in large parts of the world ocean is limited by low availability of dissolved iron (dFe), restricting oceanic uptake of atmospheric CO2. The bioavailability of dFe in seawater is however difficult to appraise since it is bound by a variety of poorly characterized organic ligands. Here, we propose a new approach for evaluating seawater dFe bioavailability based on its uptake rate constant by Fe-limited cultured phytoplankton. We utilized seven phytoplankton species of diverse classes, sizes, and provenances to probe for dFe bioavailability in 12 seawater samples from several ocean basins and depths. All tested phytoplankton acquired …