A5012876322- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Identification and Quantification in Food
- Marine and fisheries research
- Fish Biology and Ecology Studies
- Environmental DNA in Biodiversity Studies
- Marine Ecology and Invasive Species
- Marine animal studies overview
- Coral and Marine Ecosystems Studies
- Physiological and biochemical adaptations
- Aquaculture disease management and microbiota
- Underwater Acoustics Research
- Maritime and Coastal Archaeology
- Conservation, Ecology, Wildlife Education
- Animal and Plant Science Education
- Deception detection and forensic psychology
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Reproductive Physiology in Livestock
- Paleontology and Evolutionary Biology
- Traumatic Ocular and Foreign Body Injuries
- International Maritime Law Issues
- Museums and Cultural Heritage
- Animal Nutrition and Physiology
- Cephalopods and Marine Biology
- Fish biology, ecology, and behavior
University of Southern Mississippi
2014-2024
University of Mataram
2024
Bedford Institute of Oceanography
2023
University of North Florida
2023
NOAA National Marine Fisheries Service Southeast Fisheries Science Center
2023
South Carolina Department of Natural Resources
2023
National Oceanic and Atmospheric Administration
2023
NOAA National Marine Fisheries Service Northeast Fisheries Science Center
2023
Georgia Department of Natural Resources
2023
The expansion of the world's merchant fleet poses a great threat to ocean's biodiversity. Collisions between ships and marine megafauna can have population-level consequences for vulnerable species. Endangered whale shark (Rhincodon typus), shares circumglobal distribution with this expanding tracking movement pathways has shown that large vessel collisions pose major However, it is not yet known whether they are also at risk within aggregation sites, where up 400 individuals gather feed on...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 458:199-211 (2012) - DOI: https://doi.org/10.3354/meps09777 Feeding habitat of whale shark Rhincodon typus in northern Gulf Mexico determined using species distribution modelling Jennifer A. McKinney1,4,*, Eric R. Hoffmayer2, Wei Wu3, Richard Fulford3, Jill M. Hendon4 1Center for Fisheries Research and...
Abstract The timing and extent of international crossings by billfishes, tunas, sharks in the Cuba-Mexico-United States (U.S.) triangle was investigated using electronic tagging data from eight species that resulted >22,000 tracking days. Transnational movements these highly mobile marine predators were pronounced with varying levels bi- or tri-national population connectivity displayed each species. Billfishes tunas moved throughout Gulf Mexico all (blue marlin, white Atlantic bluefin...
Understanding the stress responses of sharks to recreational catch and release fishing has important management conservation implications. The blacktip shark Carcharhinus limbatus is a popular species targeted throughout western, central eastern Gulf Mexico (Gulf) yet it unclear what levels physiological result from catch-release practices with hook line gear if in post-release mortality. This study correlates response through blood chemistry analysis examines behaviour adult caught...
The Southeast Area Monitoring and Assessment Program (SEAMAP) Bottom Longline (BLL) survey was established to provide a nearshore complement the offshore National Marine Fisheries Service (NMFS) BLL survey. SEAMAP state partners (i.e., Texas, Louisiana, Mississippi, Alabama) used identical gear sampling protocol NMFS; however, temporal window, universe, frequency, station selection were determined independently by each based on available resources capabilities. Although collected high...
Long-term fishery-independent surveys provide a wealth of information on fisheries stocks that inform stock assessments. One the strengths these is design and methods are consistent through time. However, maintaining an unchanged time series can pose several potential issues as management needs change resulting in need to alter either survey or its spatial extent. In United States Gulf Mexico, bottom trawl targeting groundfish shrimp (hereafter, surveys) have been conducted since 1950s, with...
In the northern Gulf of Mexico (GOM), whale sharks ( Rhincodon typus ) form large aggregations at continental shelf-edge banks during summer; however, knowledge movements once they leave aggregation sites is limited. Here we report on seasonal occurrence in GOM based over 800 shark sightings from 1989 to 2016, as well 42 tagged with satellite-linked and popup satellite archival transmitting tags 2008 2015. Sightings data were most numerous summer fall often individuals reported along shelf...
Abstract The reproductive biology of the Atlantic Sharpnose Shark Rhizoprionodon terraenovae in Gulf Mexico was investigated by examining 1,306 specimens (693 females, 613 males) collected from Florida Keys to waters off Brownsville, Texas. results this study confirm annual cycle established for species; however, there a significant amount variability within cycle. Ovulatory and postovulatory females were present March October, indicating that mating ovulation occurring over more protracted...
Abstract An intersexual Blacktip Shark Carcharhinus limbatus with a testis, immature female reproductive tracts (embedded), and claspers was caught in the Gulf of Mexico. Histology single gonad revealed that all stages spermatogenesis were occurring; however, absence ovaries male duct system suggests neither sex would have been functional this individual. Intersexuality has reported 17 families 36 species elasmobranchs. The degree to which different sexes are present given individual is...
Intraspecific variability in life-history patterns is well documented elasmobranchs, and defining regionally specific parameters essential for proper management sustainability of species. Studies on the reproductive biology finetooth sharks (Carcharhinus isodon) have noted a potential disparity periodicity within North American waters. To better define regional variability, current study collected 1490 (831 female, 659 male) from northern Gulf Mexico. The size-at-maturity was determined to...
Abstract Formerly common in tropical and subtropical waters of the Atlantic Ocean, Critically Endangered smalltooth sawfish, Pristis pectinata , underwent severe declines over past century, restricting population(s) to south south‐west Florida US, Bahamian waters. Anecdotal evidence (e.g. encounter reports from public) suggests that P. have recently been observed historically occupied US waters; however, no directed surveys conducted verify their extent occupancy. Here, environmental DNA...
In 2007, three rays identified as Rhinoptera brasiliensis based on tooth series counts were captured in the northern Gulf of Mexico, a region far outside their accepted range coastal waters southern Brazil. Genetic analyses confirmed that these individuals distinct from R. bonasus, only recognized indigenous rhinopterid Mexico. Further over 250 specimens widespread occurrence two species Mexico and revealed anomalous related most closely to vouchered Discriminant function morphological data...
Context Nursery areas provide refuge from predators, rich foraging grounds, and physical conditions conducive to growth development of juvenile inhabitants. Specifically, the Mississippi Sound in northern Gulf Mexico is likely a nursery ground for multiple large small coastal sharks. Aims methods Using over decade shark survey catch data, we employed habitat modelling approaches identify preferred environmental spatial distribution, quantify core overlap within young-of-year (YOY), adult...
We report 24 new records of the Brazilian cownose ray Rhinoptera brasiliensis outside its accepted geographic range. Sequencing a 442-base pair portion mitochondrial NADH dehydrogenase subunit 2 gene for 282 samples revealed eight off east coast USA and 16 from eastern Gulf Mexico. Both sexes all life stages were documented in seasons over multiple years Indian River Lake Worth lagoons, Florida, indicating that their range extends further western North Atlantic than previously described.
The mechanisms underlying polyandry and female mate choice in certain taxonomic groups remain widely debated. In elasmobranchs, several species have shown varying rates of based on genetic studies multiple paternity (MP). We investigated MP the finetooth shark,