|2010 - Present||Director - The Save Our Seas Shark Research Center, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography, Department of Biological Sciences|
|2006 - Present||Professor, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography, Department of Biological Sciences|
|2002 - Present||Director - The Guy Harvey Research Institute, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography, Department of Biological Sciences|
|1993 - 2006||Assistant / Associate Professor, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|2000 - 2002||Assistant Director - The Guy Harvey Research Institute, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
comparative genomics and transcriptomics of marine species, conservation genetics, conservation genomics, movement ecology of marine fishes, coral reef ecosystem molecular ecology, conservation biology, molecular ecology, molecular evolution, marine biodiversity, behavioral ecology, fisheries genetics, fisheries, genetic connectivity and diversity, coral reefs, sharks, rays, and billfishes
Honors and Awards
- Nova Southeastern University President's Distinguished Professor Award 2012-2013
- Nova Southeastern University Oceanographic Center Professor of the Year Award 2012-2013
- Florida Sea Grant "Research to Application" Award: October 17, 2012
- Selected by Nova Southesatern University’s Provost’s office to represent the University Core Value of Research and Scholarship at the 2012 University Team 2020 Assembly
- Student Choice Award (for best presentation by a professional scientist), Sharks International Conference, Cairns, Australia, 2010
- Broward Business Alliance World Class Faculty Award, 2007
- Nova Southeastern University Professor of the Year 2006
- Nova Southeastern University Oceanographic Center Professor of the Year 2005
- Best Student Paper Award, XIII International Seaweed Symposium, Vancouver, B.C. 1989
- Best Student Paper Prize (Harold C. Bold Award), Phycological Society of America, 1987
- Natural Sciences and Engineering Research Council (NSERC, Canada) Doctoral Fellowship , 1986 1988
- Fisheries Memorial Scholarship, School of Fisheries, University of Washington, 1988
- Cobb Memorial Scholarship, School of Fisheries, University of Washington, 1987
- Scholastic Achievement Award, Puget Sound Institute of Food Technologists, 1987
- Egtvedt Scholar, School of Fisheries, University of Washington, 198
- Faculty Merit Award, School of Fisheries, University of Washington, 1986
- Melvin G. Anderson Memorial Scholarship, School of Fisheries, University of Washington, 1985
- Simon Fraser University Open Scholarship, 1978, 1980
|1990||Ph.D. Molecular Marine Biology, University of Washington - Seattle Campus|
|1984||M.A. Marine Biology, University of California, Santa Barbara|
|1980||B.Sc. Biology, Simon Fraser University|
Restricted Connectivity and Population Genetic Fragility in a Globally Endangered Hammerhead Shark Reviews in Fish Biology and Fisheries (2020)
Vagile, large-bodied marine organisms frequently have wide range dispersion but also dependence on coastal habitats for part of their life history. These characteristics may induce complex population genetic structure patterns, with resulting implications for the ...
Spatio-Temporal Genetic Tagging of a Cosmopolitan Planktivorous Shark Provides Insight to Gene Flow, Temporal Variation and Site-Specific Re-Encounters Scientific Reports (2020)
Migratory movements in response to seasonal resources often influence population structure and dynamics. Yet in mobile marine predators, population genetic consequences of such repetitious behaviour remain inaccessible without comprehensive sampling strategies. Temporal genetic sampling of ...
Genetic and Biophysical Modelling Evidence of Generational Connectivity in the Intensively Exploited, Western North Atlantic Red Grouper (Epinephelus morio) ICES Journal of Marine Science (2019)
Understanding the connectivity of reef organisms is important to assist in the conservation of biological diversity and to facilitate sustainable fisheries in these ecosystems. Common methods to assess reef connectivity include both population genetics and ...
The Complete Mitochondrial Genome of an Atlantic Ocean Shortfin Mako Shark, Isurus oxyrinchus Mitochondrial DNA Part B: Resources (2019)
We report the first complete mitochondrial genome of a shortfin mako shark from the Atlantic Ocean. The genome had 16,700 base pairs and contained 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a ...
Global Spatial Risk Assessment of Sharks Under the Footprint of Fisheries Nature (2019)
Effective ocean management and conservation of highly migratory species depends on resolving overlap between animal movements and distributions and fishing effort. Yet, this information is lacking at a global scale. Here we show, using a ...
Behavioral Response of a Mobile Marine Predator to Environmental Variables Differs Across Ecoregions Ecography (2019)
Animal movement and habitat selection are in part a response to landscape heterogeneity. Many studies of movement and habitat selection necessarily use environmental covariates that are readily available over large‐scales, which are assumed representative of ...
Genetic Connectivity Dynamics of the Giant Barrel Sponge, Xestospongia muta, Across the Florida Reef Tract and Gulf of Mexico Bulletin of Marine Science (2019)
Resolving the genetic connectivity of coral reef taxa is necessary to understand the community dynamics of these increasingly threatened ecosystems. Herein, we assess the fine scale genetic connectivity of six populations of the Atlantic giant ...
Complex Transboundary Movements of Marine Megafauna in the Western Indian Ocean Animal Conservation (2019)
Transboundary marine species have an increased risk of overexploitation as management regimes and enforcement can vary among states. The complex geopolitical layout of exclusive economic zones (EEZs) in the Western Indian Ocean (WIO) introduces the ...
White Shark Genome Reveals Ancient Elasmobranch Adaptations Associated with Wound Healing and the Maintenance of Genome Stability Proceedings of the National Academy of Sciences of the United States of America (2019)
The white shark (Carcharodon carcharias; Chondrichthyes, Elasmobranchii) is one of the most publicly recognized marine animals. Here we report the genome sequence of the white shark and comparative evolutionary genomic analyses to the chondrichthyans, whale ...
Oceanic Nomad or Coastal Resident? Behavioural Switching in the Shortfin Mako Shark (Isurus oxyrinchus) Marine Biology (2019)
Pelagic sharks are vulnerable to overfishing because of their low reproductive rates, generally low growth rates, and high catch rates in tuna and billfish fisheries worldwide. Pelagic sharks often migrate long distances, but they may ...
Deep Mitochondrial Lineage Divergence Among Populations of the Southern Stingray (Hypanus americanus (Hildebrand & Schroeder, 1928)) Throughout the Southeastern United States and Caribbean Marine Biodiversity (2018)
Although over half of all known elasmobranchs are batoids, with many species exploited and several of conservation concern, little is known of their population genetic structure and micro-evolutionary history. Here, we used sequence variation in ...
Genetic Connectivity and Phylogeography of the Night Shark (Carcharhinus signatus) in the Western Atlantic Ocean: Implications for Conservation Management Aquatic Conservation: Marine and Freshwater Ecosystems (2018)
The night shark, Carcharhinus signatus, is a mesopelagic, semi‐oceanic shark species found only in the Atlantic Ocean. It is one of the most frequently caught sharks in pelagic longline fisheries and is classified as Vulnerable ...
Transcriptome Derived Microsatellites Demonstrate Strong Genetic Differentiation in Pacific White Sharks Journal of Heredity (2018)
Recent advances in genome-scale sequencing technology have allowed the development of high resolution genetic markers for the study of non-model taxa. In particular, transcriptome sequencing has proven to be highly useful in generating genomic markers ...
Comparing length-measurement methods and estimating growth parameters of free-swimming whale sharks (Rhincodon typus) near the South Ari Atoll, Maldives Marine & Freshwater Research (2018)
Whale sharks (Rhincodon typus) are an endangered species whose growth and reproductive biology are poorly understood. Given their conservation concern, estimating growth parameters, as traditionally derived from vertebral samples of dead animals, is challenging. We ...
Refuges and Risks: Evaluating the Benefits of an Expanded MPA Network for Mobile Apex Predators Diversity and Distributions (2018)
Aim: Concurrently, assessing the effectiveness of marine protected areas and evaluating the degree of risk from humans to key species provide valuable information that can be integrated into conservation management planning. Tiger sharks (Galeocerdo cuvier) ...
Deep-Sea Hydrothermal Vents as Natural Egg-Case Incubators at the Galapagos Rift Scientific Reports (2018)
The discovery of deep-sea hydrothermal vents in 1977 challenged our views of ecosystem functioning and yet, the research conducted at these extreme and logistically challenging environments still continues to reveal unique biological processes. Here, we ...
Relative Abundance of Bacillus spp., Surfactant-Associated Bacterium Present in a Natural Sea Slick Observed by Satellite SAR Imagery over the Gulf of Mexico Elementa: Science of the Anthropocene (2018)
The damping of short gravity-capillary waves (Bragg waves) due to surfactant accumulation under low wind speed conditions results in the formation of natural sea slicks. These slicks are detectable visually and in synthetic aperture radar ...
Ontogenetic Partial Migration Is Associated with Environmental Drivers and Influences Fisheries Interactions in a Marine Predator ICES Journal of Marine Science (2018)
The ability to predict animal movement based on environmental change is essential for understanding the dynamic nature of their spatial ecology, and in turn the effectiveness of conservation strategies. We used a large marine predator ...
The Application of Novel Research Technologies by the Deep Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND) Consortium Marine Technology Society Journal (2018)
The deep waters of the open ocean represent a major frontier in exploration and scientific understanding. However, modern technological and computational tools are making the deep ocean more accessible than ever before by facilitating increasingly ...
Long-Term Satellite Tracking Reveals Region-Specific Movements of a Large Pelagic Predator, the Shortfin Mako Shark, in the Western North Atlantic Ocean Journal of Applied Ecology (2017)
As upper level predators, sharks serve an important role in marine ecosystems, but are often at risk from fisheries. Successful management of these species will require detailed information about their movements and distributions. Using satellite ...
Effects of the Pleistocene on the Mitochondrial Population Genetic Structure and Demographic History of the Silky Shark (Carcharhinus falciformis) in the Western Atlantic Ocean Reviews in Fish Biology and Fisheries (2017)
The silky shark, Carcharhinus falciformis, is a large-bodied, oceanic-coastal, epipelagic species found worldwide in tropical and subtropical waters. Despite its commercial importance, concerns about overexploitation, and likely ecological significance of this shark as an upper ...
Satellite Telemetry Reveals Higher Fishing Mortality Rates Than Previously Estimated, Suggesting Overfishing of an Apex Marine Predator Proceedings of the Royal Society B: Biological Sciences (2017)
Overfishing is a primary cause of population declines for many shark species of conservation concern. However, means of obtaining information on fishery interactions and mortality, necessary for the development of successful conservation strategies, are often ...
DNA Analysis of Traded Shark Fins and Mobulid Gill Plates Reveals a High Proportion of Species of Conservation Concern Scientific Reports (2017)
Continuously increasing demand for plant and animal products causes unsustainable depletion of biological resources. It is estimated that one-quarter of sharks and rays are threatened worldwide and although the global fin trade is widely recognized ...
Genetic Connectivity of a Coral Reef Ecosystem Predator: The Population Genetic Structure and Evolutionary History of the Caribbean Reef Shark (Carcharhinus perezi) Journal of Biogeography (2017)
Aim The Caribbean reef shark (Carcharhinus perezi) is one of few extant reef sharks inhabiting the Atlantic Ocean. Its variability in movements across habitat types suggests the possibility of a complex genetic population structure. Here, ...
Biogeophysical and Physiological Processes Drive Movement Patterns in a Marine Predator Movement Ecology (2017)
Background Blue sharks (Prionace glauca) are among the most abundant and widely distributed of oceanic elasmobranchs. Millions are taken annually in pelagic longline fisheries and comprise the highest component of auctioned fin weight in the ...