|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|
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 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 ...
The Complete Mitochondrial Genome of the Basking Shark Cetorhinus maximus (Chondrichthyes, Cetorhinidae) Mitochondrial DNA (2013)
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 ...
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 ...
The Behavioural and Genetic Mating System of the Sand Tiger Shark, Carcharias taurus, an Intrauterine Cannibal Biology Letters (2013)
Sand tiger sharks (Carcharias taurus) have an unusual mode of reproduction, whereby the first embryos in each of the paired uteri to reach a certain size (‘hatchlings’) consume all of their smaller siblings during gestation ...
Supplemental Feeding for Ecotourism Reverses Diel Activity and Alters Movement Patterns and Spatial Distribution of the Southern Stingray, Dasyatis americana PLoS One (2013)
Southern stingrays, Dasyatis americana, have been provided supplemental food in ecotourism operations at Stingray City Sandbar (SCS), Grand Cayman since 1986, with this site becoming one of the world’s most famous and heavily visited marine ...
Broad Geographic Distribution of Roundscale Spearfish (Tetrapturus georgii) (Teleostei, Istiophoridae) in the Atlantic Revealed by DNA Analysis: Implications for White Marlin and Roundscale Spearfish Management Fisheries Research (2013)
The recent validation of the roundscale spearfish (Tetrapturus georgii) within the western North Atlantic has introduced new complexities in the management of the overfished white marlin (Kajikia albida) in this region due to historical and ...
Characterization of the Heart Transcriptome of the White Shark (Carcharodon carcharias) BMC Genomics (2013)
Background: The white shark (Carcharodon carcharias) is a globally distributed, apex predator possessing physical, physiological, and behavioral traits that have garnered it significant public attention. In addition to interest in the genetic basis of its ...
Development and Characterization of Fifteen Novel Microsatellite Loci for the Nassau Grouper (Epinephelus striatus) and Their Utility for Cross-Amplification on a Suite of Closely Related Species Conservation Genetics Resources (2012)
The Nassau grouper (Epinephelus striatus), a severely overexploited and endangered coral reef fish in the Western Atlantic, is in urgent need of conservation and management measures. We report the development and characterization of 15 polymorphic, ...
Development and Characterization of 11 Novel Microsatellite Loci for the Roundscale Spearfish Tetrapturus georgii and Their Cross-Species Amplification Among Other Istiophorid Species Journal of Fish Biology (2012)
Eleven novel polymorphic microsatellite loci were developed and characterized for the recently validated roundscale spearfish Tetrapturus georgii. Characterization of these markers, based on 35 roundscale spearfish from the western North Atlantic, revealed two to 21 ...
Circle Hooks in Commercial, Recreational, and Artisanal Fisheries: Research Status and Needs for Improved Conservation and Management Bulletin of Marine Science (2012)
The intent of convening the International Symposium on Circle Hooks in Research, Management, and Conservation was to yield a contemporary, science-based assessment of the management and conservation utility of circle hooks in commercial, recreational, and ...
A Streamlined DNA Tool for Global Identification of Heavily Exploited Coastal Shark Species (Genus Rhizoprionodon) PLoS One (2012)
Obtaining accurate species-specific landings data is an essential step toward achieving sustainable shark fisheries. Globally distributed sharpnose sharks (genus Rhizoprionodon) exhibit life-history characteristics (rapid growth, early maturity, annual reproduction) that suggests that they could be ...
Cryptic Hammerhead Shark Lineage Occurrence in the Western South Atlantic Revealed by DNA Analysis Marine Biology (2012)
A cryptic lineage of hammerhead shark closely related to but evolutionarily distinct from the scalloped hammerhead (Sphyrna lewini) was recently documented in the western North Atlantic Ocean. Here, we demonstrate using nuclear and mitochondrial DNA ...
Island Endemism, Morphological Stasis, and Possible Cryptic Speciation in Two Coral Reef, Commensal Leucothoid Amphipod Species Throughout Florida and the Caribbean Biodiversity & Conservation (2012)
Coral reefs are believed to be one of the most diverse ecosystems, but the true magnitude of their biodiversity and patterns of endemism is uncertain. This uncertainty stems partly from the relative paucity of investigations ...