Project Limulus: What Long-Term Mark/Recapture Studies Reveal About Horseshow Crab Population Dynamics in Long Island Sound
Project Limulus is a long-term study of the population dynamics of the horseshoe crab population in Long Island Sound (LIS). We have tagged over 20,000 spawning adults from >20 beaches ranging from Greenwich to Stonington, CT since 1997. Cumulative recapture rates have reached 9%. On average 90% of the crabs are recaptured within a few miles of their original tag site within the first season. Between seasons, on average, 45% of crabs are recaptured within the same locality of where they were tagged. Of all recaptures, 99% of recaptured individuals are found within LIS. This past year we expanded the study into RI, NY, and MA collaborating with many groups for a regional horseshoe crab census. Preliminary findings reveal low spawning numbers compared to Delaware Bay across the region.
Beekey, Mark and Mattei, Jennifer, "Project Limulus: What Long-Term Mark/Recapture Studies Reveal About Horseshow Crab Population Dynamics in Long Island Sound" (2008). Biology Faculty Publications. 39.
Marine Biology Commons, Population Biology Commons, Terrestrial and Aquatic Ecology Commons
Beekey, Mark, Mattei, Jennfier. "Project Limulus: What Long-Term Mark/Recapture Studies Reveal About Horseshow Crab Population Dynamics in Long Island Sound." 9th Biennial Long Island Sound Research Conference Proceedings October 30-31 2008. Groton, CT: Long Island Sound Research Conference.