crab.

within 25 miles

Dec 25, 2025

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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 & WeatherBiologysurveywaterrestorationwater monitoringspawningcoastoystermonitoringbeachdunenew englandhorseshoe crabnew hampshirephenologysandamerican eelbeachesecologyphenologicalcrabmusselmigrationcoastalgeologyeelstewardshipdunes

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 & EnvironmentBiologyAnimalssurveybeachtrainingfloridahorseshoe crab

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentkeryn gedanghosts of the coastland conversiontidedying forestphragmitesblue crabbleached treesdelaware baystumpsomerset countyseawatersurvey123virginiasalt water intrusioncoastal ecologysoildead treesregenerationhurricanerising seasspartina patensblack needle rushsalt stresswildfireschanging landscapemarylandchanging shorelinetree deathmarinecordgrassmarshmaritime forestcoastal marine ecologyeast coastfloridasaltwater marshsaltwaternew jerseykilling treesthe george washington universitylow elevationfloodstorymapshorelinesaltdelawaredisturbanceghost forestmid atlanticeastern shoregroundwatermullica river estuarydroughtcattus islandgedan labfloodingdelmarva peninsulacoastalgeologygeographytributariessalt watersawgrasssalt tolerant plantssea level risevirginia coast reservechesapeake baynew yorksalineglobal warmingtidal inundationmarsh migrationprime hook national wildlife refugesapblackwater national refugesweet gumdying treessouth carolinastormpineclimate changesaltwater marshesnorth carolinatree stumpcoastal educationwoodforestwetlandssalt tolerantestuarygeorgiacedarswampriverbankecology

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologybeach walkpicturehorseshoe crab

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 & WeatherEducationoceanintertidal monitoringmarinerocky shoressandy beachsand crabin oceanssand crabstidepoolinvertebratessandyrockyrocky intertidalteachersintertidalstudentsalgae

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 & EnvironmentBiologyEducationcitizen sciencecrab.new zealandseaweedmarinerocky shorechitonoceanlimpetquadratintertidal

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 marinefield workhorseshoe crab wildlife monitoringwildlife monitoringmarine horseshoe crab marine biologymarine biology

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 ScienceAnimalsEcology & EnvironmentNature & Outdoorsandroidinvasive speciesoceanappledungenesspicturewashingtonbeach walkappscavenger huntbeachshorelinemycoastnaturalistmarineoutdoormonitoringcrab

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 & EnvironmentBiologyAnimalsappmonitoringmonitornew yorkcitizen-based monitoringiphonecrab.horseshoe crab

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