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Nps presentaion on horshoe crabs in jamaica bay

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very interesting presentation on horseshoe crab movement and spawning in Jamaica Bay

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Nps presentaion on horshoe crabs in jamaica bay

  1. 1. Assessment of Spawning HorseshoeAssessment of Spawning Horseshoe Crabs in Mid-Atlantic National ParksCrabs in Mid-Atlantic National Parks Patti RaffertyPatti Rafferty National Park Service, Gateway National Recreation AreaNational Park Service, Gateway National Recreation Area Dr. Mary-Jane JamesDr. Mary-Jane James University of Rhode Island, Graduate School of Oceanography,University of Rhode Island, Graduate School of Oceanography, Narragansett, RINarragansett, RI
  2. 2. Global Distribution ofGlobal Distribution of Horseshoe CrabsHorseshoe Crabs
  3. 3. Horseshoe Crab Life CycleHorseshoe Crab Life Cycle
  4. 4. Ecological and Socio-EconomicEcological and Socio-Economic Value of American HorseshoeValue of American Horseshoe Crabs (Crabs (Limulus polyphemusLimulus polyphemus))  Important part of the marine ecosystemImportant part of the marine ecosystem predators and preypredators and prey eggs - food source for migrating shorebirdseggs - food source for migrating shorebirds proposed listing of Red Knotproposed listing of Red Knot  Valuable socio-economic speciesValuable socio-economic species bait for eel and conch fisherybait for eel and conch fishery Limulus amoebocyte lysate (LAL)Limulus amoebocyte lysate (LAL)
  5. 5. Coastal New York and NewCoastal New York and New Jersey National ParksJersey National Parks
  6. 6. E X P E R I E N C E Y O U R A M E R I C AE X P E R I E N C E Y O U R A M E R I C A
  7. 7. E X P E R I E N C E Y O U R A M E R I C AE X P E R I E N C E Y O U R A M E R I C A
  8. 8. Understanding Movement andUnderstanding Movement and Population DynamicsPopulation Dynamics  US Fish and Wildlife Service (USFWS) CooperativeUS Fish and Wildlife Service (USFWS) Cooperative tagging programtagging program  Sonic transmitter tagsSonic transmitter tags
  9. 9. E X P E R I E N C E Y O U R A M E R I C AE X P E R I E N C E Y O U R A M E R I C A
  10. 10. Release location ← Big Egg ← Breezy Beach ← Canarsie ← Elders East/West ← Wildlife Refuge ← Yellow Bar Graphical representation of horseshoe crab movement as detected on the Jamaica Bay SUR array. Arrows indicate direction of travel from release location. Colored lines indicate the different release locations and where the crabs were detected within the SUR array after release. Where are Horseshoe Crabs inWhere are Horseshoe Crabs in Jamaica Bay?Jamaica Bay?
  11. 11. USFWS CooperativeUSFWS Cooperative Tagging ProgramTagging Program  USFWS provides tags, signage and managesUSFWS provides tags, signage and manages national data basenational data base  Prosomal width, sex, and location of each taggedProsomal width, sex, and location of each tagged horseshoe crab are recorded and reported tohorseshoe crab are recorded and reported to national data basenational data base  Recapture sightings provide data on regionalRecapture sightings provide data on regional movement patterns and population dynamicsmovement patterns and population dynamics  Reward for reporting tag number, location of crab,Reward for reporting tag number, location of crab, and if crab was live or dead by phone or on-lineand if crab was live or dead by phone or on-line
  12. 12. Please Report Suspected PoachingPlease Report Suspected Poaching  Please do not confront the harvester(s). Your safety isPlease do not confront the harvester(s). Your safety is always the highest priority.always the highest priority.  Be a good witness - record location and time that youBe a good witness - record location and time that you observed the harvest activity; boat registration numbersobserved the harvest activity; boat registration numbers (on the side of a boat); description of the boat or any(on the side of a boat); description of the boat or any persons; license plate, make and model of vehicles (ifpersons; license plate, make and model of vehicles (if any); etc.any); etc.  Report the incident:Report the incident: Park Police (718) 338-3988Park Police (718) 338-3988 New York State Department of EnvironmentalNew York State Department of Environmental Conservation 877-257-5680.Conservation 877-257-5680.
  13. 13. To Volunteer Contact:To Volunteer Contact: Jolene WillisJolene Willis EcologistEcologist Gateway National Recreation AreaGateway National Recreation Area (718) 338-3338 ext. 223(718) 338-3338 ext. 223 Jolene_willis@nps.govJolene_willis@nps.gov Keith E. WhiteKeith E. White VIP/Volunteer CoordinatorVIP/Volunteer Coordinator Gateway National Recreation AreaGateway National Recreation Area (718) 354-4657(718) 354-4657 keith_white@nps.govkeith_white@nps.gov

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