A5024734505- Identification and Quantification in Food
- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Genetic diversity and population structure
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Marine Ecology and Invasive Species
- Marine Biology and Ecology Research
- Environmental DNA in Biodiversity Studies
- Isotope Analysis in Ecology
- Aquatic Invertebrate Ecology and Behavior
- Marine and environmental studies
- Aquaculture disease management and microbiota
- Wildlife Ecology and Conservation
- Marine Sponges and Natural Products
- Machine Learning in Bioinformatics
- Avian ecology and behavior
- Polar Research and Ecology
- Genetic and phenotypic traits in livestock
- Atmospheric and Environmental Gas Dynamics
- Primate Behavior and Ecology
- Environmental and Biological Research in Conflict Zones
- Microbial infections and disease research
- Marine animal studies overview
Nova Southeastern University
2015-2025
Nelson Mandela University
2024
Southeastern University
2016
University of Guelph
2010
Ministry of Natural Resources and Forestry
2009
Trent University
2009
University of North Florida
2009
Abstract Continuously increasing demand for plant and animal products causes unsustainable depletion of biological resources. It is estimated that one-quarter sharks rays are threatened worldwide although the global fin trade widely recognized as a major driver, meat, liver oil, gill plates also represents significant threat. This study used DNA barcoding 16 S rRNA sequencing method to identify shark ray species from dried fins plates, obtained in Canada, China, Sri Lanka. 129 were analysed...
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, tiger shark (Galeocerdo cuvier), occurs worldwide warm temperate and tropical waters, uses remarkably diverse habitats (nearshore to pelagic) possesses a generalist diet that can structure marine ecosystems through top-down processes. We investigated phylogeography population this exploited, phylogenetically enigmatic by using...
Large-bodied pelagic sharks are key regulators of oceanic ecosystem stability, but highly impacted by severe overfishing. One such species, the shortfin mako shark (Isurus oxyrinchus), a globally widespread, migratory predator, has undergone dramatic population reductions and is now Endangered (IUCN Red List), with Atlantic Ocean in particular assessed fishery managers as overfished need urgent, improved management attention. Genomic-scale assessments for this apex predator species have not...
Despite increasing threats of extinction to Elasmobranchii (sharks and rays), whole genome-based conservation insights are lacking. Here, we present chromosome-level genome assemblies for the Critically Endangered great hammerhead (Sphyrna mokarran) shortfin mako (Isurus oxyrinchus) sharks, with genetic diversity historical demographic comparisons other shark species. The exhibited low variation, 8.7% 2.77 Gbp in runs homozygosity (ROH) > 1 Mbp 74.4% ROH >100 kbp. 4.98 had considerably...
DNA barcoding is a method promising fast and accurate identification of animal species based on the sequencing mitochondrial c oxidase subunit (COI) gene. In this study, we explore prospects for in one particular fish group, billfishes (suborder Xiphioidei—swordfish, marlins, spearfishes, sailfish). We sequenced COI gene from 296 individuals 10 currently recognized billfishes, combined these data with further 57 sequences previously published projects. also rhodopsin subset 72 to allow...
Sand tiger sharks ( Carcharias taurus ) have an unusual mode of reproduction, whereby the first embryos in each paired uteri to reach a certain size (‘hatchlings’) consume all their smaller siblings during gestation (‘embryonic cannibalism’ or EC). If females commonly mate with multiple males (‘behavioural polyandry’) then litters could initially sires. It is possible, however, that EC exclude but one these sires from producing offspring thus influencing species genetic mating system...
The pelagic Gulf of Mexico (GoM) is a complex system dynamic physical oceanography (western boundary current, mesoscale eddies), high biological diversity, and community integration via diel vertical migration lateral advection. Humans also heavily utilize this system, including its deep-sea components, for resource extraction, shipping, tourism, other commercial activity. This utilization has had impacts, some with disastrous consequences. Deepwater Horizon oil spill (DWHOS) occurred at...
Abstract Understanding the population dynamics of highly mobile, widely distributed, oceanic sharks, many which are overexploited, is necessary to aid their conservation management. We investigated global genomics tiger sharks (Galeocerdo cuvier), a circumglobally apex predator displaying remarkable behavioral versatility in its diet, habitat use (near coastal, coral reef, pelagic), and individual movement patterns (spatially resident long-distance migrations). genotyped 242 from 10 globally...
Abstract Aim The Caribbean reef shark ( Carcharhinus perezi ) is one of few extant sharks inhabiting the Atlantic Ocean. Its variability in movements across habitat types suggests possibility a complex genetic population structure. Here, we use mitochondrial and nuclear DNA to investigate connectivity contemporary evolutionary time‐scales relate our findings ecology this understudied species. Location Tropical western Caribbean. Methods Samples were obtained from 216 individuals six...
Discontinuous genetic structure is widely used to delineate local, regional, and phylogenetic groups within species for conservation management purposes. We microsatellite markers assess the distinctiveness of putative stocks populations lake whitefish ( Coregonus clupeaformis ) in Ontario waters. Analysis spawning aggregations eastern Lake showed fish from Chaumont Bay, New York, be weakly differentiated near Bay Quinte, Ontario. No significant differences were found between lake-...
Recent advances in genome-scale sequencing technology have allowed the development of high resolution genetic markers for study nonmodel taxa. In particular, transcriptome has proven to be highly useful generating genomic use population studies, allowing insight into species connectivity, as well local adaptive processes many transcriptome-derived are found within or associated with functional genes. Herein, we developed a set 30 microsatellite from heart white shark (Carcharodon...
Resolving the genetic connectivity of coral reef taxa is necessary to understand community dynamics these increasingly threatened ecosystems. Herein, we assess fine scale six populations Atlantic giant barrel sponge, Xestospongia muta (Schmidt, 1870), using microsatellite markers. This survey included from across Florida Reef Tract and Gulf Mexico, including sponges Pulley Ridge Habitat Area Particular Concern, a mesophotic located approximately 250 km Florida's (USA) southwestern coast,...
Abstract The deep waters of the open ocean represent a major frontier in exploration and scientific understanding. However, modern technological computational tools are making more accessible than ever before by facilitating increasingly sophisticated studies ecosystems. Here, we describe some cutting-edge technologies that have been employed Deep Pelagic Nekton Dynamics Gulf Mexico (DEEPEND; <ext-link ext-link-type="uri"...
The basking shark (Cetorhinus maximus) is the world's second largest fish and subject of strong conservation concern. Minimal genetic assessment exists for this globally distributed but regionally endangered species. We describe complete mitochondrial genome sequence C. maximus, obtained via polymerase chain reaction-based Sanger sequencing. total length mitogenome 16,670 bp consists 2 rRNAs, 22 tRNAs 13 protein-coding genes. base composition has an A + T bias (63.6%), as often seen in other...
Moles MD, Johnston TA, Robinson BW, Bernard AM, Wilson CC, Wiegand Leggett WC. Reproductive divergence between growth forms of Lake Winnipeg walleye ( Sander vitreus ). Ecology Freshwater Fish 2011: 20: 52–66. © 2010 John Wiley & Sons A/S Abstract – Growth polymorphisms occur in many fish species, particularly northern temperate freshwater lakes. The only known polymorphism ) is Winnipeg, Canada, where slow‐growing (dwarf) and fast‐growing (normal) morphotypes co‐exist. We examined...