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Cornell Lab of Ornithology


New York Horseshoe Crab Monitoring Network

Monitoring spawning horseshoe crabs on beaches in New York State.

New York Horseshoe Crab Monitoring Network

Horseshoe crabs spawning

The intent of this network is to encourage volunteers to get involved with our annual horseshoe crab monitoring program on various reference beaches throughout New York’s Marine District. “Citizen Scientists” will work with trained site coordinators to help collect data on horseshoe crab spawning abundance, size, sex and tag returns around full and new moon evenings from May to July. The data collected through this program is used to assess the status of horseshoe crabs in NY State, and will help determine the management and conservation of this important species throughout the region. Visit the New York Horseshoe Crab Monitoring Network website...



Topic - horseshoe crabs, limulus, abundance, tagging, iphone app

Audience - adults, families, youth, schools

Location - Long Island, New York, Suffolk County, Nassau County, New York City

Goals - monitoring abundance, conservation management, migrations, stewardship



Cornell Cooperative Extension of Suffolk County

New York State Department of Environmental Conservation



Dr. Matthew Sclafani, Project Leader email Matt


Corey Humphrey, Project Assistant email Corey


Citizen science, volunteer monitoring, participatory action research... this site supports organizers of all initiatives where public participants are involved in scientific research.

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