Florida Horseshoe Crab Watch-Linked with Limulus

Become a Citizen Scientist!  Join the program in which trained volunteers conduct scientific surveys of horseshoe crabs in Florida.



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In 2015, FWRI and the University of Florida launched a citizen science initiative in which trained volunteers assist biologists in surveying, tagging and resighting Florida’s nesting horseshoe crab populations utilizing a standardized scientific protocol.  The program was so successful that we are expanding our efforts to a statewide level.  


Dixie County, Shired Island

Franklin County, Bald Point State Park

Levy County, Cedar Key

Nassau County, Ft Clinch State Park

Pinellas County, Fort Desoto

Taylor County, Hagen's Cove

Volusia County, New Smyrna Beach and Cape Canaveral

We will be incorporating new areas in the counties of Manatee, Hillsborough, Sarasota, Brevard, Monroe, Palm Beach and Hernando by the spring of 2019.

Survey results will be published seasonally and will include number of animals sighted, tagged and resighted in a given area. View a sampleExternal Website of the program information and data gathered in the Cedar Key area. 

If you are interested in assisting with surveys going on in your area, or would like to suggest a location for inclusion into the program, contact:


Claire Crowley




FWC Facts:
Pacu are often confused for piranha and can be differentiated by their flat teeth, which are designed for grinding nuts and berries.

Learn More at AskFWC