Horseshoe Crab Tag Program

Attention Beachgoers: Help scientists collect data on nesting horseshoe crabs by reporting tagged animals.

If you see a tagged crab (like the ones in the photo):

  1. Snap a picture of the tag or record the tag # (number is on the bottom of tag).
  2. Note the date, location, and general condition of the crab (alive or dead).
  3. Report data using the online form at (www.fws.gov/crabtag/) or by calling 1-888-546-8587 (1-888-LIMULUS).

Important: DO NOT remove the tag. When recording the tag #, try to limit disturbance to the crab. Try not to pick the crab up and if you must pick it up, NEVER pick it up by the tail.

Collected data goes into a national database maintained by the US Fish and Wildlife Service and contributes to knowledge about horseshoe crab movements and population numbers.