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Satellite Tracking

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Shelley - Ten Thousand Islands - Kemp's ridleys

A project of Conservancy of Southwest Florida.

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Shelley measured 57 cm curved carapace length. She spent the first week of tracking near the capture site in Gullivan Bay within the Rookery Bay National Estuarine Research Reserve. Shelley then moved offshore and back inshore, moving southward along the outer Ten Thousand Islands archipelago. This has put her within the boundary of Everglades National Park and demonstrates the connectivity of marine protected areas along the west coast of Florida. Shelley traveled as far as another island named Turtle Key in Rabbit Key Pass and then backtracked to Gullivan Bay via her offshore route. She then moved 20-30 km (12-18 miles) offshore of Cape Romano in early January following the passage of a strong cold front and lower water temperatures. Shelley moved inshore and northward, possibly to Gordon Pass in Naples, followed by another movement offshore and then inshore/northward to San Carlos Bay between Sanibel Island and Fort Myers Beach. She continued northward along Sanibel and Captiva Islands to Boca Grand Pass in mid-January. These latter movements brought Shelley to the Charlotte Harbor National Estuary Program, again demonstrating the connectivity of protected areas in southwest Florida. Low to medium concentrations of red tide algae were reported off Boca Grande on 17-24 January and Shelley continued her northward trek. High concentrations of this harmful algae were reported further north in Sarasota and Manatee Counties and Shelley responded by staying well offshore. She continued northward and was located 35 km (22 miles) off Egmont Key/Tampa Bay in early February. Shelley then resumed her northward trek, moving inshore towards Homosassa Bay and then on to the Cedar Keys. This brought her into the Big Bend Aquatic Preserve, the largest aquatic preserve in the state. She moved to deeper waters off the Suwanee River and continued northward to Apalachee Bay.
Toward the end of February, Shelley shifted her track westward along the Florida Panhandle coast and on to the Mississippi-Alabama shelf waters off the Chandeleur Islands by early March. She then slowed her movements, possibly trying to figure out how to get around the Mississippi River delta, and then continued westward along/offshore the Louisiana coast. By mid-April Shelley approached the Texas coast. This arrival corresponded to the nesting season for Kemp's ridleys in the western Gulf. Shelley continued southward in May, crossing the U.S.-Mexico border, and traveled as far south as Veracruz. This put here off the major Kemp's ridley nesting beaches centered around Rancho Nuevo through June. Shelley then backtracked along the Mexican coast and was off Texas beaches by early July, then continued to Louisiana waters by the end of the month. The satellite tag is sponsored by Bob and Eileen Hord.

  • The presentation of data here does not constitute publication. All data remain copyright of the project partners. Maps or data on this website may not be used or referenced without the explicit written consent of the data owners.
  • For more information please visit the project website.
  • This map connects positions generated by the ARGOS system designated as location class (lc) '4', '3', '2', '1', '0', 'A', 'B'. Locations that have been "filtered" are displayed as small red dots.
  • This maps also shows locations of class 'A' as small black dots which are not connected by a route line.
  • Bathymetry layers are derived from the GEBCO One Minute Grid.
  • Sea surface temperature and chlorophyll are derived from NASA's Ocean Color data.
  • Ocean currents and sea surface heights are derived from AVISO's Ssalto/Duacs Gridded Absolute Dynamic Topography & absolute geostrophic velocities data.

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