crab.

within 25 miles

Feb 3, 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 & WeatherBiologyduneseelspawningsandstewardshipmonitoringecologyhorseshoe crabmusselsurveynew hampshirewater monitoringgeologyphenologywaterdunemigrationcoastalnew englandamerican eelrestorationoysterbeachesphenologicalcrabcoastbeach

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 & EnvironmentBiologyAnimalsbeachsurveyhorseshoe crabfloridatraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsaltwater marshesmarsh migrationprime hook national wildlife refugeecologyvirginia coast reservemaritime forestshorelinetributariesregenerationsomerset countytideghost forestseawaterchesapeake baystumpwildfiresdying forestchanging landscapesouth carolinasalinedying treesphragmitesdead treeseastern shoretree stumppinesawgrasschanging shorelinelow elevationwetlandssweet gumthe george washington universitystorymapblackwater national refugeriverbankdisturbancemarshhurricanekilling treessalt water intrusionbleached treesblack needle rushgeographyland conversioncedartidal inundationnew jerseyforestcoastal marine ecologygeorgiasaltwater marshcordgrasskeryn gedansoilsalttree deathspartina patensfloodingdelaware baysapfloridaswampblue crabdelawarecattus islandclimate changefloodsalt tolerantdelmarva peninsulaghosts of the coastnew yorkstormdroughtcoastalmarinegedan labwoodsalt tolerant plantsglobal warmingcoastal ecologysea level riseeast coastgroundwaterrising seasestuarymullica river estuarygeologymarylandnorth carolinacoastal educationmid atlanticsaltwatersalt watervirginiasalt stresssurvey123

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologypicturehorseshoe crabbeach 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 & WeatherEducationtidepoolin oceansstudentssand crabsintertidalintertidal monitoringmarineoceaninvertebratesalgaesandysand crabrockysandy beachrocky shoresteachersrocky intertidal

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 & EnvironmentBiologyEducationlimpetcitizen sciencenew zealandchitonrocky shorequadratintertidalcrab.marineoceanseaweed

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 Sciencemarinemarine biologyfield work horseshoe crabhorseshoe crab marine biologywildlife monitoring marine wildlife monitoring

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 & EnvironmentAnimalswashingtonnaturalistpictureinvasive speciesappoutdoorapplemycoastmarineandroidbeachcrabshorelinescavenger huntbeach walkoceandungenessmonitoring

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 crabnew yorkmonitoriphoneappmonitoringcitizen-based monitoringcrab.

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