crab.

within 25 miles

Jun 2, 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 & WeatherBiologycoaststewardshiprestorationecologymigrationspawninggeologybeachwatersurveymusselphenologysandcraboysterbeachescoastalhorseshoe crabwater monitoringdunesnew englandmonitoringnew hampshireduneeelphenologicalamerican eel

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 & EnvironmentBiologyAnimalstraininghorseshoe crabsurveyfloridabeach

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsalt tolerant plantssalt water intrusiontree deathdroughtchanging landscapeprime hook national wildlife refugeshorelinesalt watercoastal marine ecologysweet gumsurvey123floodthe george washington universitymarsh migrationdelmarva peninsulaestuaryriverbankdelaware baymid atlanticwetlandscoastal ecologynew yorkglobal warmingsalt tolerantblue crabsoilnew jerseystormtidal inundationfloodinggeorgiastumpsouth carolinakeryn gedansaltdying forestchanging shorelinegedan labeastern shorekilling treesdisturbancepinemarshsalt stressgroundwatertree stumpblack needle rushblackwater national refugesaltwater marshesmaritime forestnorth carolinamarylandcoastalforesteast coastecologywoodregenerationsapfloridageologyphragmitessea level riseghosts of the coastghost foreststorymapsalinesaltwatercattus islandlow elevationmarinetidegeographyvirginiaseawatersaltwater marshbleached treeshurricanemullica river estuarycoastal educationdying treesspartina patenscedarrising seasclimate changecordgrassland conversiondelawarechesapeake baysomerset countywildfiresswampvirginia coast reservesawgrassdead treestributaries

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 & Environmenthorseshoe crabsdelaware bay

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 & WeatherEducationoceanstudentsintertidalsand crabsand crabsrocky shorestidepoolsandyrocky intertidalmarineteachersinvertebratesintertidal monitoringin oceansalgaesandy beachrocky

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 & EnvironmentBiologyEducationnew zealandseaweedmarinerocky shorechitonquadratintertidallimpetcrab.oceancitizen science

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 Sciencemarinehorseshoe crab marinemarine biology marine biology horseshoe crabwildlife monitoring wildlife monitoringfield work

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 & EnvironmentAnimalsdungenessbeach walkpictureoutdoorapplewashingtoninvasive speciesoceanbeachcrabshorelineappscavenger huntnaturalistmarinemycoastandroidmonitoring

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 & EnvironmentBiologyAnimalsappcrab.monitoriphonecitizen-based monitoringhorseshoe crabnew yorkmonitoring

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