|2010 ‐ Present||Director - The Save Our Seas Shark Research Center, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|2006 ‐ Present||Professor, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|2002 ‐ Present||Director - The Guy Harvey Research Institute, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|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
- Finalist (top five) for Nova Southeastern University Provost’s Research Award 2011
- 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|
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 ...
The Complete Mitochondrial Genome of the Endangered Great Hammerhead Shark, Sphyrna mokarran Mitochondrial DNA Part B (2017)
We present the first mitochondrial genome sequence of the great hammerhead shark, Sphyrna mokarran. This species is of considerable conservation concern throughout its global distribution, and currently listed as Endangered on the IUCN Red List. ...
The Complete Mitochondrial Genome of the Critically Endangered Angelshark, Squatina squatina Mitochondrial DNA Part B (2017)
Here, we describe the first mitochondrial genome of the angelshark, Squatina squatina. The genome is 16,689 bp in length with 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a non-coding control region. Base ...
Forecasting Lionfish Sources and Sinks in the Atlantic: Are Gulf of Mexico Reef Fisheries at Risk? Coral Reefs (2017)
Invasive lionfish (Pterois volitans/miles complex) now permeate the entire tropical western Atlantic, Caribbean Sea, and Gulf of Mexico, but lionfish abundance has been measured only in select locations in the field. Despite its rapid range ...
Comparative Transcriptomics of Elasmobranchs and Teleosts Highlight Important Processes in Adaptive Immunity and Regional Endothermy BMC Genomics (2017)
Background: Comparative genomic and/or transcriptomic analyses involving elasmobranchs remain limited, with genome level comparisons of the elasmobranch immune system to that of higher vertebrates, non-existent. This paper reports a comparative RNA-seq analysis of heart tissue ...
DNA Analysis of Surfactant-Associated Bacteria in a Natural Sea Slick Observed by TerraSAR-X and RADARSAT-2 Over the Gulf of Mexico International Journal of Remote Sensing (2017)
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 ...
Shared Phylogeographical Breaks in a Caribbean Coral Reef Sponge and Its Invertebrate Commensals Journal of Biogeography (2016)
Aim To test whether phylogeographical barriers in the brooding sponge Callyspongia vaginalis match breaks previously identified in the Caribbean. We also compared patterns of subdivision in the sponge to those of three of its commensals, ...
Patterns of Population Structure and Dispersal in the Long-Lived "Redwood" of the Coral Reef, the Giant Barrel Sponge (Xestospongia muta) Coral Reefs (2016)
Sponges are one of the dominant fauna on Florida and Caribbean coral reefs, with species diversity often exceeding that of scleractinian corals. Despite the key role of sponges as structural components, habitat providers, and nutrient ...
Surfactant-Associated Bacteria in the Near-Surface Layer of the Ocean Scientific Reports (2016)
Certain marine bacteria found in the near-surface layer of the ocean are expected to play important roles in the production and decay of surface active materials; however, the details of these processes are still unclear. ...
Shark Diversity in the Arabian/Persian Gulf Higher Than Previously Thought: Insights Based on Species Composition of Shark Landings in the United Arab Emirates Marine Biodiversity (2015)
Although fish fauna in the Arabian/Persian Gulf have been studied for decades, shark diversity has only been recently investigated in the region. Here, we present a first comprehensive account of shark diversity from the United ...
Repeated, Long-Distance Migrations by a Philopatric Predator Targeting Highly Contrasting Ecosystems Scientific Reports (2015)
Long-distance movements of animals are an important driver of population spatial dynamics and determine the extent of overlap with area-focused human activities, such as fishing. Despite global concerns of declining shark populations, a major limitation ...
Surfactant Associated Bacteria in the Sea Surface Microlayer: Case Studies in the Straits of Florida and the Gulf of Mexico Canadian Journal of Remote Sensing (2015)
Certain genera of bacteria found in the near-surface layer of the ocean can be involved in the production and decay of surface active materials (surfactants), resulting in slicks on the sea surface. Slicks can be ...
Genetic Diversity of White Sharks, Carcharodon carcharias, in the Northwest Atlantic and Southern Africa Journal of Heredity (2015)
The white shark, Carcharodon carcharias, is both one of the largest apex predators in the world and among the most heavily protected marine fish. Population genetic diversity is in part shaped by recent demographic history ...
Global Mitochondrial DNA Phylogeography and Population Structure of the Silky Shark, Carcharhinus falciformis Marine Biology (2015)
Globally, sharks are under enormous pressure from fishing efforts. One such species is the silky shark, Carcharhinus falciformis, which occurs in all the Earth’s tropical oceans and is captured in large numbers in pelagic fisheries. ...
Genetic Evidence Supports Larval Retention in the Western Caribbean for an Invertebrate With High Dispersal Capability (Ophiothrix suensonii: Echinodermata, Ophiuroidea) Coral Reefs (2015)
The brittle star Ophiothrix suensonii is a common coral reef sponge commensal with high dispersal potential. Here, we utilize COI sequence data from 264 O. suensonii individuals collected from 10 locations throughout Florida and the ...
The Complete Mitochondrial Genome of the Basking Shark Cetorhinus maximus (Chondrichthyes, Cetorhinidae) Mitochondrial DNA (2015)
The basking shark (Cetorhinus maximus) is the world’s second largest fish and the subject of strong conservation concern. Minimal genetic assessment exists for this globally distributed but regionally endangered species. We describe the complete mitochondrial ...
The Trade in Sharks and Their Products in the United Arab Emirates Biological Conservation (2015)
The rapid growth in the demand for shark products, particularly fins, has led to the worldwide overexploitation of many elasmobranch species. Although there are growing concerns about this largely unregulated and unmonitored trade, little information ...
Comparative Population Genetics and Evolutionary History of Two Commonly Misidentified Billfishes of Management and Conservation Concern BMC Genetics (2014)
Background: Misidentifications between exploited species may lead to inaccuracies in population assessments, with potentially irreversible conservation ramifications if overexploitation of either species is occurring. A notable showcase is provided by the realization that the roundscale ...
Migratory Patterns and Habitat Use of the Sand Tiger Shark (Carcharias taurus) in the Western North Atlantic Marine and Freshwater Research (2014)
Globally, population declines for the sand tiger shark (Carcharias taurus) have resulted in calls for informed management of populations, including in the western North Atlantic, where they have been listed as a Species of Concern ...
Intraspecific Variation in Vertical Habitat Use by Tiger Sharks (Galeocerdo cuvier) in the Western North Atlantic Ecology and Evolution (2014)
Tiger sharks (Galeocerdo cuvier) are a wide ranging, potentially keystone predator species that display a variety of horizontal movement patterns, making use of coastal and pelagic waters. Far less, however, is known about their vertical ...
Development and Characterization of Thirteen Microsatellite Markers for the Longbill Spearfish (Tetrapturus pfluegeri) Conservation Genetics Resources (2013)
The longbill spearfish (Tetrapturus pfluegeri; Istiophoridae) is an epipelagic billfish species broadly distributed in the Atlantic Ocean and exploited by multinational fisheries. No data exist on the population structure or genetic diversity of this apex ...