SelectedWorks - Andrea Bernard

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Selected Works of Andrea Bernard

Research Scientist

My areas of research include the conservation and population genetics of marine teleosts and elasmobranchs. The bulk of my research involves the assessment of both the historical and contemporary genetic connectivity of populations of marine species across their distribution. I am also particularly interested in evaluating the impacts of overfishing on the genetic diversity of heavily exploited species.

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About Andrea Bernard

My areas of research include the conservation and population genetics of marine teleosts and elasmobranchs. The bulk of my research involves the assessment of both the historical and contemporary genetic connectivity of populations of marine species across their distribution. I am also particularly interested in evaluating the impacts of overfishing on the genetic diversity of heavily exploited species.

Articles (31)

Population genomic dynamics of mesopelagic lanternfishes Diaphus dumerilii, Lepidophanes guentheri, and Ceratoscopelus warmingii (Family: Myctophidae) in the Gulf of Mexico (Andrea Bernard, Kimberly A Finnegan, Tracey Sutton, et al.) Deep Sea Research Part I: Oceanographic Research Papers (2022)

Assessing the impacts of the Deepwater Horizon oil spill (DWHOS) on deep-sea fish assemblages of the Gulf of Mexico (GOM) has been hindered by an absence of baseline (pre-spill) data concerning the population genetic dynamics ...

Three complete mitochondrial genomes of shortfin mako sharks, Isurus oxyrinchus, from the Atlantic and Pacific Oceans (Marissa Mehlrose, Andrea Bernard, Kimberly A Finnegan, et al.) Mitochondrial DNA Part B (2022)

We present complete mitogenome sequences of three shortfin mako sharks (Isurus oxyrinchus) sampled from the western Pacific, and eastern and western Atlantic oceans. Mitogenome sequence lengths ranged between 16,699 bp and 16,702 bp, and all ...

Genomic assessment of global population structure in a highly migratory and habitat versatile apex predator, the tiger shark (Galeocerdo cuvier). (Andrea Bernard, Kimberly A Finnegan, Paulina Pavinski Bitar, et al.) The Journal of Heredity (2021)

Understanding the population dynamics of highly mobile, widely distributed, oceanic sharks, many of which are overexploited, is necessary to aid their conservation management. We investigated the global population genomics of tiger sharks (Galeocerdo cuvier), a ...

Come together: calibration of tiger shark (Galeocerdo cuvier) microsatellite databases for investigating global population structure and assignment of historical specimens (Matilde Sort, Alice Manuzzi, Belén Jiménez-Mena, et al.) Conservation Genetics Resources (2021)

This study provides the first standardized global microsatellite database for a shark species, the tiger shark (Galeocerdo cuvier). Genotyping of reference individuals was used to develop and apply a calibration key for data from eight ...

A Multidisciplinary Approach to Investigate Deep-Pelagic Ecosystem Dynamics in the Gulf of Mexico Following Deepwater Horizon (April Cook, Andrea Bernard, Kevin M. Boswell, et al.) Frontiers in Marine Science (2020)

The pelagic Gulf of Mexico (GoM) is a complex system of dynamic physical oceanography (western boundary current, mesoscale eddies), high biological diversity, and community integration via diel vertical migration and lateral advection. Humans also heavily ...

The complete mitochondrial genome of a gray reef shark, Carcharhinus amblyrhynchos (Carcharhiniformes: Carcharhinidae), from the Western Indian Ocean (Ela Patel, Andrea Bernard, Marissa Mehlrose, et al.) Mitochondrial DNA Part B (2020)

We present the mitochondrial genome sequence of a gray reef shark, Carcharhinus amblyrhynchos (Bleeker 1856), a coral reef associated species. This is the first mitogenome for this species from the western Indian Ocean. The mitogenome ...

Genetic and Biophysical Modelling Evidence of Generational Connectivity in the Intensively Exploited, Western North Atlantic Red Grouper (Epinephelus morio) (Andrea Bernard, Matthew Johnston, Rocio Perez-Portela, et al.) 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 ...

Genetic Connectivity Dynamics of the Giant Barrel Sponge, Xestospongia muta, Across the Florida Reef Tract and Gulf of Mexico (Andrea M Bernard, Kimberly A Finnegan and Mahmood S Shivji) 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 ...

Transcriptome Derived Microsatellites Demonstrate Strong Genetic Differentiation in Pacific White Sharks (Andrea Bernard, Vincent P. Richards, Michael J Stanhope, et al.) 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 ...

The Application of Novel Research Technologies by the Deep Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND) Consortium (Rosanna Milligan, Andrea Bernard, Kevin M. Boswell, et al.) 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 ...

DNA Analysis of Traded Shark Fins and Mobulid Gill Plates Reveals a High Proportion of Species of Conservation Concern (Dirk Steinke, Andrea Bernard, Rebekah L. Horn, et al.) 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) (Andrea Bernard, Rebekah L. Horn, Demian D. Chapman, et al.) 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, ...

Forecasting Lionfish Sources and Sinks in the Atlantic: Are Gulf of Mexico Reef Fisheries at Risk? (Matthew Johnston, Andrea Bernard and Mahmood S. Shivji) 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 ...

A Bank Divided: Quantifying a Spatial and Temporal Connectivity Break Between the Campeche Bank and the Northeastern Gulf of Mexico (Matthew W. Johnston and Andrea Bernard) Marine Biology (2017)

Marine connectivity over seascapes enables the persistence of metapopulations and is often regulated in part by an organism’s pelagic larval duration (PLD), fecundity, mortality, and ocean conditions. The Campeche Bank (CB) in the southern Gulf ...

Global Population Genetic Dynamics of a Highly Migratory, Apex Predator Shark (Andrea Bernard, Kevin A. Feldheim, Michael Heithaus, et al.) Molecular Ecology (2016)

Knowledge of genetic connectivity dynamics in the world's large-bodied, highly migratory, apex predator sharks across their global ranges is limited. One such species, the tiger shark (Galeocerdo cuvier), occurs worldwide in warm temperate and tropical ...

Patterns of Population Structure and Dispersal in the Long-Lived "Redwood" of the Coral Reef, the Giant Barrel Sponge (Xestospongia muta) (Vincent P. Richards, Andrea Bernard, Kevin Feldheim, et al.) 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 ...

The Ups and Downs of Coral Reef Fishes: The Genetic Characteristics of a Formerly Severely Overfished but Currently Recovering Nassau Grouper Fish Spawning Aggregation (Andrea M. Bernard, Kevin Feldheim, Richard S. Nemeth, et al.) Coral Reefs (2016)

The Nassau grouper (Epinephelus striatus) has sustained large declines across its distribution, including extirpation of many of its fish spawning aggregations (FSAs). Within US Virgin Islands (USVI) waters, Nassau grouper FSAs were overfished until their ...

A DNA Tool for the Identification of Heavily Exploited Atlantic Billfishes (Rodrigo R. Domingues, Gabriel Okuda, Andrea Bernard, et al.) Conservation Genetic Resources (2015)

Due to the morphological similarities among species, the International Commission for the Conservation of the Atlantic Tunas has recommended the use of diagnostic molecular tools to allow for robust species-level identifications of the billfishes. In ...

Isolation and Characterization of Polymorphic Microsatellite Markers from a Globally Distributed Marine Apex Predator, the Tiger Shark (Galeocerdo cuvier) (Andrea Bernard, Kevin A. Feldheim and Mahmood S. Shivji) Conservation Genetics Resources (2015)

High levels of fishing have resulted in declines among many of the oceans top predators, including the globally distributed tiger shark (Galeocerdo cuvier). Overexploitation of this species has led to declines in parts of its ...

Global Mitochondrial DNA Phylogeography and Population Structure of the Silky Shark, Carcharhinus falciformis (Christopher R. Clarke, Stephen A. Karl, Rebekah L. Horn, et al.) 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. ...

The Complete Mitochondrial Genome of the Basking Shark Cetorhinus maximus (Chondrichthyes, Cetorhinidae) (Jennifer Hester, Kimberly Atwater, Andrea M. Bernard, et al.) 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 ...

Comparative Population Genetics and Evolutionary History of Two Commonly Misidentified Billfishes of Management and Conservation Concern (Andrea M. Bernard, Mahmood S. Shivji, Eric Prince, et al.) 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 ...

Development and Characterization of Thirteen Microsatellite Markers for the Longbill Spearfish (Tetrapturus pfluegeri) (Andrea M. Bernard, A. W. S. Hilsdorf, A. F. Amorim, et al.) 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 (Demian D. Chapman, Sabine Wintner, Debra L. Abercrombie, et al.) 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 ...

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 (Andrea M. Bernard, Mahmood S. Shivji, Rodrigo Rodrigues Domingues, et al.) 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 ...