crab.

within 25 miles

Jun 17, 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 & WeatherBiologyamerican eelphenologicalcrabrestorationcoastmigrationbeachwater monitoringspawningstewardshipbeachesecologyhorseshoe crabdunesmusselphenologydunewatereelsandnew englandsurveymonitoringoysternew hampshirecoastalgeology

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 & EnvironmentBiologyAnimalssurveybeachhorseshoe crabtrainingflorida

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentspartina patensmarylandvirginia coast reservetidal inundationcoastal ecologyprime hook national wildlife refugecoastaltree deathsalt stressghost foreststormchanging shorelineblue crabhurricaneecologyriverbanksawgrassglobal warmingsoilsurvey123marshmaritime forestblackwater national refugeeastern shorenew yorkdying treesstumpdelaware baycoastal educationnorth carolinasalt waterbleached treeskeryn gedanmid atlanticblack needle rushfloodingwildfireswetlandssaltwater marshnew jerseymarinedelawaredroughtcedarrising seastidepinegroundwatersaltwaterseawatersalt tolerantghosts of the coastsaltthe george washington universityclimate changedisturbancesapfloridacoastal marine ecologygeographyflooddelmarva peninsulagedan labforestsalt tolerant plantsstorymapland conversionmarsh migrationlow elevationtributariessomerset countycattus islandswampgeologycordgrassdead treessaltwater marshesphragmitessalt water intrusionshorelinegeorgiasea level risesalinetree stumpregenerationchesapeake baykilling treessweet gumwoodeast coastvirginiaestuarymullica river estuarydying forestchanging landscapesouth carolina

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologyhorseshoe crabbeach walkpicture

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 & WeatherEducationalgaesand crabssandy beachmarinesand crabtidepoolstudentsrocky shoresrocky intertidalintertidalintertidal monitoringinvertebratesteacherssandyin oceansrockyocean

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 & EnvironmentBiologyEducationseaweedcitizen sciencecrab.new zealandchitonoceanmarineintertidallimpetquadratrocky shore

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 marine wildlife monitoringwildlife monitoringfield workmarine biology horseshoe crabmarinehorseshoe crab

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 & EnvironmentAnimalsoceanshorelinecrabinvasive speciespicturemarinebeachandroidwashingtonmonitoringscavenger huntoutdoordungenessnaturalistappleappmycoastbeach walk

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 & EnvironmentBiologyAnimalsiphonenew yorkcitizen-based monitoringmonitorappcrab.horseshoe crabmonitoring

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