crab.

within 25 miles

Apr 18, 2026

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Coastal Research Volunteers

Contribute to coastal science, stewardship, and resilience

Multiple locations, including yours!

Ongoing

Citizen ScienceAnimalsOcean Water MarineNature & OutdoorsGeology & Earth ScienceEcology & EnvironmentClimate & WeatherBiologyspawningbeacheseelphenologyphenologicalrestorationcoastsandmonitoringnew englandhorseshoe crabcoastalbeachwaterdunesgeologymigrationcrabnew hampshirewater monitoringecologyamerican eelmusselsurveystewardshipoysterdune

FWC:FWRI, UF/IFAS, UF Department of Biology, SeaGrant Florida

Florida Horseshoe Crab Watch

Monitor spawning horseshoe crab beaches

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineNature & OutdoorsEcology & EnvironmentBiologyAnimalshorseshoe crabbeachfloridasurveytraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentclimate changecoastal educationsalt tolerantthe george washington universityghosts of the coastcoastal ecologystorymappinesalt water intrusiontidal inundationblackwater national refugeforestchanging shorelinegeorgianew yorkdroughtmullica river estuarymaritime forestlow elevationeastern shorestumpsomerset countyghost foresttidesaltsaltwater marshessweet gumcedarmid atlanticfloodwetlandsspartina patenscoastal marine ecologysapgroundwaterstormglobal warmingsalt watersea level risesawgrasstree deathnew jerseycoastalsalt stresseast coastswampchanging landscaperising seasgeographysurvey123marylandhurricanesaltwater marshdelaware bayvirginia coast reservephragmitesdying forestsalt tolerant plantssalinetributarieskilling treesdying treesdisturbancewoodsoilgeologyblack needle rushshorelinemarinegedan labdelmarva peninsulakeryn gedanfloodingnorth carolinacattus islandtree stumpriverbankmarsh migrationdead treesestuaryfloridaregenerationvirginiableached treesland conversionmarshsouth carolinablue crabprime hook national wildlife refugechesapeake bayecologysaltwaterseawaterdelawarecordgrasswildfires

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologyhorseshoe crabpicturebeach walk

Delaware National Estuarine Research Reserve

Horseshoe Crab Spawning Survey

Monitor horseshoe crab populations in the DE Bay

Dover, DE

Ongoing

Citizen ScienceAnimalsBiologyOcean Water MarineNature & OutdoorsEcology & Environmentdelaware bayhorseshoe crabs

Greater Farallones Association, Pacific Grove Museum of Natural History and the NOAA Office of National Marine Sanctuaries

Long-term Monitoring Program and Experiential Training for Students (LiMPETS)

Provide authentic, hands-on coastal monitoring experiences

Multiple locations, including yours!

Ongoing

Citizen ScienceNature & OutdoorsBiologyGeology & Earth ScienceEcology & EnvironmentOcean Water MarineAnimalsClimate & WeatherEducationintertidaloceantidepoolteachersalgaesandy beachsand crabrocky shoresrockymarinein oceanssand crabsintertidal monitoringstudentsrocky intertidalinvertebratessandy

New Zealand Marine Studies Centre

Marine Metre Squared

Survey the intertidal community in New Zealand.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineNature & OutdoorsEcology & EnvironmentBiologyEducationlimpetintertidalchitoncrab.citizen sciencemarinenew zealandrocky shoreoceanseaweedquadrat

Anne Arundel County Recreation and Parks

Mayo Peninsula Parks Horseshoe Crab Counts

Count yearly population of spawning horseshoe crabs at Mayo Peninsula Parks, Anne Arundel County Maryland

Near your search location!

Ongoing

Citizen Science marine biology wildlife monitoringhorseshoe crabwildlife monitoringmarinemarine biologyfield work horseshoe crab marine

Washington Sea Grant's Crab Team, WSU Extension, and a number of local partners

Molt Search

Monitor invasive European green crabs & native Dungeness crabs

Multiple locations, including yours!

Ongoing

Citizen ScienceNature & OutdoorsEcology & EnvironmentAnimalsnaturalistoutdoorapplebeachmonitoringoceanbeach walkandroidappscavenger huntdungenesspicturecrabshorelineinvasive specieswashingtonmycoastmarine

Cornell University Cooperative Extension of Suffolk County

New York Horseshoe Crab Monitoring Network

Promote conservation of horseshoe crabs in NY State.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineNature & OutdoorsEcology & EnvironmentBiologyAnimalshorseshoe crabappiphonenew yorkmonitoringmonitorcrab.citizen-based monitoring

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