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Genetic evidence supports a range extension for the Brazilian cownose ray Rhinoptera brasiliensis in the western North Atlantic
Authors:Helen K Weber  Christian M Jones  Matthew J Ajemian  Michael P McCallister  Brent L Winner  Gregg R Poulakis  Dana M Bethea  Lisa D Hollensead  Daniel Zapf  John D Swenson  Jill M Hendon  Toby S Daly-Engel  Nicole M Phillips
Institution:1. School of Biological, Environmental and Earth Sciences, The University of Southern Mississippi, Hattiesburg, Mississippi, USA;2. National Marine Fisheries Service, Southeast Fisheries Science Center, Mississippi Laboratories, Pascagoula, Mississippi, USA;3. Harbor Branch Oceanographic Institute, Florida Atlantic University, Fort Pierce, Florida, USA;4. Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, St. Petersburg, Florida, USA;5. Charlotte Harbor Field Laboratory, Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, Port Charlotte, Florida, USA;6. NOAA, National Marine Fisheries Service, Southeast Regional Office, Office of Protected Resources, Saint Petersburg, Florida, USA;7. Gulf of Mexico Fishery Management Council, Tampa, Florida, USA;8. Department of Environmental Quality, North Carolina Division of Marine Fisheries, Washington, North Carolina, USA;9. Graduate Program in Organismic and Evolutionary Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA;10. Center for Fisheries Research and Development, The University of Southern Mississippi, Ocean Springs, Mississippi, USA;11. Department of Ocean Engineering and Marine Sciences, Florida Institute of Technology, Melbourne, Florida, USA
Abstract:We report 24 new records of the Brazilian cownose ray Rhinoptera brasiliensis outside its accepted geographic range. Sequencing of a 442-base pair portion of the mitochondrial NADH dehydrogenase subunit 2 gene for 282 Rhinoptera samples revealed eight records off the east coast of the USA and 16 from the eastern Gulf of Mexico. Both sexes of all life stages were documented in all seasons over multiple years in the Indian River and Lake Worth lagoons, Florida, indicating that their range extends further in the western North Atlantic than previously described.
Keywords:American cownose ray  elasmobranch  Indian River Lagoon  mitochondrial DNA  ND2  Rhinoptera bonasus
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