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Marine Biology Commons

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Nova Southeastern University

2022

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Articles 61 - 72 of 72

Full-Text Articles in Marine Biology

A Biological Condition Gradient For Coral Reefs In The Us Caribbean Territories: Part I. Coral Narrative Rules, Deborah L. Santavy, Susan K. Jackson, Benjamin Jessup, Jeroen Gerritsen, Caroline Rogers, William S. Fisher, Ernesto Weil, Alina Szmant, David , Cuevas-Miranda, Brian K. Walker, Christopher Jeffrey, Patricia Bradley, David Ballantine, Loretta Roberson, Hector Ruiz-Torres, Brandi Todd, Tyler Smith, Randy Clark, Ernesto Diaz, Jorge Bauzá-Ortega, Christina Horstmann, Sandy Raimondo Mar 2022

A Biological Condition Gradient For Coral Reefs In The Us Caribbean Territories: Part I. Coral Narrative Rules, Deborah L. Santavy, Susan K. Jackson, Benjamin Jessup, Jeroen Gerritsen, Caroline Rogers, William S. Fisher, Ernesto Weil, Alina Szmant, David , Cuevas-Miranda, Brian K. Walker, Christopher Jeffrey, Patricia Bradley, David Ballantine, Loretta Roberson, Hector Ruiz-Torres, Brandi Todd, Tyler Smith, Randy Clark, Ernesto Diaz, Jorge Bauzá-Ortega, Christina Horstmann, Sandy Raimondo

Marine & Environmental Sciences Faculty Articles

As coral reef condition and sustainability continue to decline worldwide, losses of critical habitat and their ecosystem services have generated an urgency to understand and communicate reef response to management actions, environmental contamination, and natural disasters. Increasingly, coral reef protection and restoration programs emphasize the need for robust assessment tools for protecting high-quality waters and establishing conservation goals. Of equal importance is the need to communicate assessment results to stakeholders, beneficiaries, and the public so that environmental consequences of decisions are understood. The Biological Condition (BCG) model provides a structure to evaluate the condition of a coral reef in increments …


Comparative Toxicity Of Hydrocarbons For Evaluation Of Lysmata Boggessi As An Experimental Proxy For Deep-Water Column Micronekton, Dorothy-Ellen A. Renegar, Nicholas Turner, Gopal Bera, Eileen G. Whitemiller, Bernhard Riegl, Jose Sericano, Anthony H. Knap Mar 2022

Comparative Toxicity Of Hydrocarbons For Evaluation Of Lysmata Boggessi As An Experimental Proxy For Deep-Water Column Micronekton, Dorothy-Ellen A. Renegar, Nicholas Turner, Gopal Bera, Eileen G. Whitemiller, Bernhard Riegl, Jose Sericano, Anthony H. Knap

Marine & Environmental Sciences Faculty Articles

The potential impacts of sub-surface hydrocarbon plumes to deep-water column micronekton are an important consideration in a more complete understanding of ecosystem effects resulting from deep-sea oil spills. However, evaluating toxicity in these organisms presents multiple challenges, and the use of a shallow-water proxy species allows comparison and validation of experimental results. This study thus examined the suitability of the peppermint shrimp, Lysmata boggessi, as an experimental proxy for ecologically important deep-sea zooplankton/micronekton in hydrocarbon toxicity assays. This crustacean species occurs in shallow coastal marine environments throughout the western Atlantic, Caribbean and Gulf of Mexico, is similar in …


Comparison Of Recent Survey Techniques For Estimating Benthic Cover On Caribbean Mesophotic Reefs, Joseph R. Pawlik, Roy A. Armstrong, Stephanie Farrington, John Reed, Sara Rivero-Calle, Hanumant Singh, Brian K. Walker, Jason White Mar 2022

Comparison Of Recent Survey Techniques For Estimating Benthic Cover On Caribbean Mesophotic Reefs, Joseph R. Pawlik, Roy A. Armstrong, Stephanie Farrington, John Reed, Sara Rivero-Calle, Hanumant Singh, Brian K. Walker, Jason White

Marine & Environmental Sciences Faculty Articles

Highly divergent estimates of benthic cover of sponges have been reported for Caribbean mesophotic reefs (90-100 m) based on quadrat point-intercept data collection using 2 methods: visual surveys conducted in situ by technical divers, and analyses of photographs taken by unmanned underwater vehicles (UUVs). The second method has been criticized for potential errors from image distortion caused by variable camera angle relative to the substratum, but without a broader comparison of both methods. We find that studies that have used the UUV-based method are advantageous for a number of reasons, most importantly: (1) access to the full mesophotic zone, (2) …


Analysis Of The Magnetic Signature Of Surface Waves Measured In A Laboratory Experiment, John Kluge, Alex Soloviev, Cayla W. Dean, Geoffrey K. Morrison, Brian K. Haus Mar 2022

Analysis Of The Magnetic Signature Of Surface Waves Measured In A Laboratory Experiment, John Kluge, Alex Soloviev, Cayla W. Dean, Geoffrey K. Morrison, Brian K. Haus

Marine & Environmental Sciences Faculty Articles

A magnetic signature is created by secondary magnetic field fluctuations caused by the phenomenon of seawater moving in Earth’s magnetic field. A laboratory experiment was conducted at the SUrge STructure Atmosphere INteraction (SUSTAIN) facility to measure the magnetic signature of surface waves using a differential method: a pair of magnetometers, separated horizontally by one-half wavelength, were placed at several locations on the outer tank walls. This technique significantly reduced the extraneous magnetic distortions that were detected simultaneously by both sensors and additionally doubled the magnetic signal of surface waves. Accelerometer measurements and local gradients were used to identify magnetic noise …


Spatial And Temporal Patterns Of Fire On Saipan, Cnmi, Ilan E. Bubb, Zachary B. Williams Mar 2022

Spatial And Temporal Patterns Of Fire On Saipan, Cnmi, Ilan E. Bubb, Zachary B. Williams

Marine & Environmental Sciences Faculty Articles

Sediment core studies from Saipan suggest that fires did not play a prominent role in the disturbance regime of the Mariana Islands and have increased in frequency since human settlement around 4,000 years ago. On Saipan fires are understood to interrupt the pattern of succession leading to the degradation of native limestone forests, the proliferation of grasslands and the eventual creation of badlands. Little baseline data regarding the spatial and temporal patterns of fire on Saipan exist to create effective Fire Management Plans. This project uses Landsat 8 images from April 2013 to July 2020 and the Normalized Burn Ratio …


Spatiotemporal Patterns In The Biomass Of Drift Macroalgae In The Indian River Lagoon, Florida, United States, Lauren M. Hall, Lori J. Morris, Robert H. Chamberlain, M. Dennis Hanisak, Robert W. Virnstein, Richard Paperno, Bernhard Riegl, L. Rex Ellis, Ali Simpson, Charles A. Jacoby Feb 2022

Spatiotemporal Patterns In The Biomass Of Drift Macroalgae In The Indian River Lagoon, Florida, United States, Lauren M. Hall, Lori J. Morris, Robert H. Chamberlain, M. Dennis Hanisak, Robert W. Virnstein, Richard Paperno, Bernhard Riegl, L. Rex Ellis, Ali Simpson, Charles A. Jacoby

Marine & Environmental Sciences Faculty Articles

Drift macroalgae plays key roles in the ecology of many coastal systems, including the Indian River Lagoon. In the lagoon, changes in the biomass of drift macroalgae may have interacted with an unprecedented bloom of phytoplankton in 2011. Patterns in the biomass of drift macroalgae were identified using new and original analyses of data from several sampling programs collected between 1997 and 2019. All available data show a relatively low biomass of drift macroalgae in 2010–2012, and surveys of fixed transects and seining as part of a fisheries independent monitoring program also recorded low biomass in 2016. Low light availability …


A Biological Condition Gradient For Caribbean Coral Reefs: Part Ii. Numeric Rules Using Sessile Benthic Organisms, Deborah L. Santavy, Susan K. Jackson, Benjamin Jessup, Christina Horstmann, Caroline Rogers, Ernesto Weil, Alina Szmant, David Cuevas Miranda, Brian K. Walker, Christopher Jeffrey, David Ballantine, William S. Fisher, Randy Clark, Hector Ruiz Torres, Brandi Todd, Sandy Raimondo Jan 2022

A Biological Condition Gradient For Caribbean Coral Reefs: Part Ii. Numeric Rules Using Sessile Benthic Organisms, Deborah L. Santavy, Susan K. Jackson, Benjamin Jessup, Christina Horstmann, Caroline Rogers, Ernesto Weil, Alina Szmant, David Cuevas Miranda, Brian K. Walker, Christopher Jeffrey, David Ballantine, William S. Fisher, Randy Clark, Hector Ruiz Torres, Brandi Todd, Sandy Raimondo

Marine & Environmental Sciences Faculty Articles

The Biological Condition Gradient (BCG) is a conceptual model used to describe incremental changes in bio- logical condition along a gradient of increasing anthropogenic stress. As coral reefs collapse globally, scientists and managers are focused on how to sustain the crucial structure and functions, and the benefits that healthy coral reef ecosystems provide for many economies and societies. We developed a numeric (quantitative) BGC model for the coral reefs of Puerto Rico and the US Virgin Islands to transparently facilitate ecologically meaningful management decisions regarding these fragile resources. Here, reef conditions range from natural, undisturbed conditions to severely altered or …


Diversity And Time-Series Analyses Of Caribbean Deep-Sea Coral And Sponge Assemblages On The Tropical Island Slope Of Isla De Roatán, Honduras, Peter J. Etnoyer, Charles G. Messing, Karl A. Stanley, Tomasz K. Baumiller, Kate Lavelle, Thomas C. Shirley Jan 2022

Diversity And Time-Series Analyses Of Caribbean Deep-Sea Coral And Sponge Assemblages On The Tropical Island Slope Of Isla De Roatán, Honduras, Peter J. Etnoyer, Charles G. Messing, Karl A. Stanley, Tomasz K. Baumiller, Kate Lavelle, Thomas C. Shirley

Marine & Environmental Sciences Faculty Articles

Shore-based submersible operations, from 2006 to 2020, have allowed us to examine megabenthic assemblages along the island margin of Isla de Roatán from depths of about 150 to 750 m, including repeated observations of the same organisms. These dives were used to photo-document a diverse benthic assemblage and observe the health and condition of the sessile fauna in a well-explored but relatively undocumented area of the Mesoamerican Reef. Samples were collected by dip net, and some dives profiled the water column chemistry in the year 2011. The deep-sea coral assemblage observed off Roatan exhibits high abundance and diversity. The sessile …


Light-Driven Dynamics Between Calcification And Production In Functionally Diverse Coral Reef Calcifiers, Jennifer Mallon, Tyler Cyronak, Emily R. Hall, Anastazia T. Banaszak, Dan A. Exton, Adrian M. Bass Jan 2022

Light-Driven Dynamics Between Calcification And Production In Functionally Diverse Coral Reef Calcifiers, Jennifer Mallon, Tyler Cyronak, Emily R. Hall, Anastazia T. Banaszak, Dan A. Exton, Adrian M. Bass

Marine & Environmental Sciences Faculty Articles

Coral reef metabolism underpins ecosystem function and is defined by the processes of photosynthesis, respiration, calcification, and calcium carbonate dissolution. However, the relationships between these physiological processes at the organismal level and their interactions with light remain unclear. We examined metabolic rates across a range of photosynthesising calcifiers in the Caribbean: the scleractinian corals Acropora cervicornis, Orbicella faveolata, Porites astreoides, and Siderastrea siderea, and crustose coralline algae (CCA) under varying natural light conditions. Net photosynthesis and calcification showed a parabolic response to light across all species, with differences among massive corals, branching corals, and CCA that …


Sheepshead (Archosargus Probatocephalus) Neurocranium, Andrew J. Hartmann, Steven Peterson, David W. Kerstetter Jan 2022

Sheepshead (Archosargus Probatocephalus) Neurocranium, Andrew J. Hartmann, Steven Peterson, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Neurocranium from Sheepshead (Archosargus probatocephalus)


Predicting Responses Of Geo-Ecological Carbonate Reef Systems To Climate Change: A Conceptual Model And Review, Nicola K. Browne, Michael Cuttler, Katie Moon, Kyle Morgan, Claire L. Ross, Carolina Castro-Sanguino, Emma Kennedy, Dan Harris, Peter Barnes, Andrew G. Bauman, Eddie Beetham, Joshua Bonesso, Yves-Marie Bozec, Christopher E. Cornwall, Shannon Dee, Thomas M. Decarlo, Juan P. D'Olivo, Christopher Doropoulos, Richard D. Evans, Bradley Eyre, Peter Gatenby, Manuel Gonzalez, Sarah Hamylton, Jeff Hansen, Ryan Lowe, Jennie Mallela, Michael O'Leary, George Roff, Benjamin J. Saunders, Adi Zweilfer Jan 2022

Predicting Responses Of Geo-Ecological Carbonate Reef Systems To Climate Change: A Conceptual Model And Review, Nicola K. Browne, Michael Cuttler, Katie Moon, Kyle Morgan, Claire L. Ross, Carolina Castro-Sanguino, Emma Kennedy, Dan Harris, Peter Barnes, Andrew G. Bauman, Eddie Beetham, Joshua Bonesso, Yves-Marie Bozec, Christopher E. Cornwall, Shannon Dee, Thomas M. Decarlo, Juan P. D'Olivo, Christopher Doropoulos, Richard D. Evans, Bradley Eyre, Peter Gatenby, Manuel Gonzalez, Sarah Hamylton, Jeff Hansen, Ryan Lowe, Jennie Mallela, Michael O'Leary, George Roff, Benjamin J. Saunders, Adi Zweilfer

Marine & Environmental Sciences Faculty Books and Book Chapters

[Chapter Abstract] 230Coral reefs provide critical ecological and geomorphic (e.g. sediment production for reef-fronted shoreline maintenance) services, which interact in complex and dynamic ways. These services are under threat from climate change, requiring dynamic modelling approaches that predict how reef systems will respond to different future climate scenarios. Carbonate budgets, which estimate net reef calcium carbonate production, provide a comprehensive ‘snap-shot’ assessment of reef accretionary potential and reef stability. These budgets, however, were not intended to account for the full suite of processes that maintain coral reef services or to provide predictive capacity on longer timescales (decadal to centennial). To …


Ubiquitous Microplastics In The Upper Gastrointestinal Tracts Of Florida Coastal Seabirds, Jonathan J. Clark, Dorothy-Ellen A. Renegar, Dave Kerstetter Jan 2022

Ubiquitous Microplastics In The Upper Gastrointestinal Tracts Of Florida Coastal Seabirds, Jonathan J. Clark, Dorothy-Ellen A. Renegar, Dave Kerstetter

Marine & Environmental Sciences Faculty Articles

Plastic pollution is increasingly recognized as a global problem. In particular, plastic pieces <5 mm in size (‘microplastics’) are of interest due to their prevalence and association with harmful, persistent organic pollutants (POPs). Very little is known about the prevalence of microplastics in coastal birds. Yet, these water-associated birds are at a high risk of ingesting microplastics that accumulate near the water’s surface. This study describes the microplastics found in the proventriculus and ventriculus of four species of coastal birds regarding quantity, size, type (fiber or fragment), and color (light, mid, or dark). A total of 643 microplastic particles were identified, with 43 of the 44 study specimens containing microplastics (97.7% frequency). The ‘fiber’ type and the ‘mid’ color were the most common microplastics. There were no significant differences between species for particle sizes, but Brown Pelicans contained significantly more particles than the other three species. These results highlight the prevalence of plastic pollution in medium-sized seabirds, but more work is needed to determine microplastic patterns between taxa and foraging environments.