A5043573364- Fish Biology and Ecology Studies
- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Identification and Quantification in Food
- Genetic diversity and population structure
- Environmental DNA in Biodiversity Studies
- Colorectal Cancer Surgical Treatments
- Colorectal Cancer Treatments and Studies
- Colorectal and Anal Carcinomas
- Yersinia bacterium, plague, ectoparasites research
- Evolution and Genetic Dynamics
- Physiological and biochemical adaptations
- Marine and fisheries research
- Genomics and Phylogenetic Studies
- Epigenetics and DNA Methylation
- Kruppel-like factors research
- Forensic Entomology and Diptera Studies
- Soil Mechanics and Vehicle Dynamics
- Marine Ecology and Invasive Species
- Context-Aware Activity Recognition Systems
- Insect symbiosis and bacterial influences
- Evolutionary Game Theory and Cooperation
- Mollusks and Parasites Studies
- Genetically Modified Organisms Research
- Immunotherapy and Immune Responses
Texas A&M University – Corpus Christi
2019-2024
University of Rochester Medical Center
2023
University of Portland
2021
Stony Brook University
2014-2020
Medtronic (United States)
2019
NOAA National Marine Fisheries Service
2015
Ocean Institute
2015
University of Windsor
2015
University of KwaZulu-Natal
2015
Field Museum of Natural History
2015
Body size is a classic quantitative trait with evolutionarily significant variation within many species. Locating the alleles responsible for this would help understand maintenance of in body particular, as well traits general. However, successful genome-wide association genotype and phenotype may require very large sample sizes if have low population frequencies or modest effects. As complementary approach, we propose that population-based resequencing experimentally evolved populations...
Abstract The shark fin trade is a major driver of exploitation in fisheries all over the world, most which are not managed on species‐specific basis. Species‐specific information highlights taxa particular concern and can be used to assess efficacy management measures anticipate emerging threats. species composition Hong Kong Special Administrative Region China, one world's largest trading hubs, was partially assessed 1999–2001. We randomly selected genetically identified trimmings ( n =...
There is a growing need to identify shark products in trade, part due the recent listing of five commercially important species on Appendices Convention International Trade Endangered Species (CITES; porbeagle, Lamna nasus, oceanic whitetip, Carcharhinus longimanus scalloped hammerhead, Sphyrna lewini, smooth S. zygaena and great hammerhead mokarran) addition three listed early this century (whale, Rhincodon typus, basking, Cetorhinus maximus, white, Carcharodon carcharias). Shark fins are...
Abstract Trade‐driven overexploitation threatens many sharks. Twelve of the world's most vulnerable shark species have been listed on Convention International Trade in Endangered Species Wild Fauna and Flora (CITES) to regulate internationally traded products such as meat dried fins. CITES records indicate that Hong Kong was top legal importer fins from sharks 2015 ( N = 8 at time), but a relatively small volume, with few partners, number shipments (16). In contrast two Appendix II...
Protecting sharks from overexploitation has become global priority after widespread population declines have occurred. Tracking catches and trade on a species-specific basis proven challenging, in part due to difficulties identifying processed shark products such as fins, meat, liver oil. This hindered efforts implement regulations aimed at promoting sustainable use of commercially important species protection imperiled species. Genetic approaches identify exist but are typically based...
Abstract Species-specific monitoring through large shark fin market surveys has been a valuable data source to estimate global catches and international trade dynamics. Hong Kong Guangzhou, mainland China, are the largest markets consumption centers in world. We used molecular identification protocols on randomly collected processed trimmings (n = 2000) non-parametric species estimators investigate composition of Guangzhou retail compare diversity between markets. Species was similar both...
The white shark, Carcharodon carcharias, is both one of the largest apex predators in world and among most heavily protected marine fish. Population genetic diversity part shaped by recent demographic history can thus provide information complementary to more traditional population assessments, which are difficult obtain for sharks have at times been controversial. Here, we use mitochondrial control region 14 nuclear-encoded microsatellite loci assess shark 2 regions: Northwest Atlantic...
We announce the complete genome sequence for Proteus mirabilis strain BB2000, a model system self recognition. This opportunistic pathogen contains single, circular chromosome (3,846,754 bp). Comparisons between this and that of HI4320 reveal genetic variations corresponding to previously unknown physiological self-recognition differences.
Population structure and lineage diversification within a small, non-dispersive hammerhead shark species, the bonnethead Sphyrna tiburo, was assessed. tiburo is currently described as one continuously distributed species along Atlantic continental margins of North, Central South America, but recent genetic analysis an insular population (Trinidad) suggests possibility cryptic speciation. To address this issue S. were sampled at six sites c. 6200 km continuous, coastline from island location...
Abstract There is an urgent need for population‐specific trade information overexploited sharks, as international regulations are becoming important tool their conservation [i.e., listings on the Convention International Trade in Endangered Species (CITES)]. We tested a genetic stock identification (GSI) workflow to quantify relative contributions of different source populations CITES‐listed scalloped hammerhead shark Sphyrna lewini hubs products such dried fins. grouped published...
Age estimates are essential for fisheries assessment and management, but deepwater (>200 m) fishes often difficult to age using traditional techniques. Therefore, age-predictive epigenetic clocks were developed a model reef fish, blackbelly rosefish Helicolenus dactylopterus, two tissue types (fin clips muscle; n = 61 individuals; 9−60 years) Δ 14 C-validated consensus estimates. The influence of biological information (length sex) on clock accuracy, the potential developing multi-tissue...
Cutting-edge DNA methylation-based epigenetic aging techniques were applied to Gulf of Mexico northern red snapper (Lutjanus campechanus; n = 10; 1–26 years old) and grouper (Epinephelus morio; 2–14 old). Bisulfite-converted restriction site-associated sequencing was used identify CpG sites (cytosines followed by guanines) that exhibit age-correlated methylation, species-specific clocks developed from hundreds in each species showed strong agreement between predicted otolith-derived age (r 2...
Abstract Fins from highly mobile shark species entering large fin trade hubs can originate various geographical locations and stocks. Tracing fins internationally regulated to their starting point in the supply chain have important implications for monitoring enforcement of international laws intended protect threatened species. Here we use pelagic thresher Alopias pelagicus samples ( N = 86) collected during a 4‐year period (2014–2017), phylogenetic analyses, using cytochrome oxidase I...
Abstract Understanding how interactions among microevolutionary forces generate genetic population structure of exploited species is vital to the implementation management policies that facilitate persistence. Philopatry displayed by many coastal shark can impact gene flow and selection, has direct implications for spatial scales management. Here, blacktip ( Carcharhinus limbatus ) was examined using a mixed‐marker approach employing mitochondrial control region sequences 4339 SNP‐containing...
Abstract The silky shark is the second most common in Southeast Asia's dried fin markets and managed Atlantic Ocean by International Commission for Conservation of Tuna (ICCAT) three Indo‐Pacific regional fisheries management organizations (RMFOs). reports ∼ 7% global landings but there a moratorium on export their fins. During 4‐year period (2014–2017) we used genetic differentiation observed between sharks to assess contribution individuals fins randomly obtained two largest world, Hong...
Abstract Red snapper, Lutjanus campechanus, supports one of the more important fisheries in marine waters United States. Consequently, it has been focus intensive research for than 20 years. Here, we present a genomic analysis population structure that uses landscape genetics approach to characterize patterns variation adult red snapper Gulf Mexico (GOM) alongside synoptic view decades stock-structure research. The results support Atlantic and GOM stocks indicate weak heterogeneity within...
Developing-world shark fisheries are typically not assessed or actively managed for sustainability; one fundamental obstacle is the lack of species and size-composition catch data. We tested implemented a new potentially widely applicable approach collecting these data: mandatory submission low-value secondary fins (anal fins) from landed sharks by fishers use to reconstruct size. Visual low-cost genetic identification were used determine composition, linear regression was applied total...