crab.

within 25 miles

Jul 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 eelrestorationdunebeachesbeachphenologyeelmusseldunescoastnew englandecologynew hampshirewater monitoringphenologicalcoastalhorseshoe crabgeologyoystersurveysandstewardshipwatermonitoringmigrationspawningcrab

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 & EnvironmentBiologyAnimalstrainingbeachfloridahorseshoe crabsurvey

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsurvey123blue crabsomerset countybleached treessalt watersalt water intrusioncoastalnew jerseyhurricanesea level riseswampgeorgiamarshmarinevirginia coast reservedelaware baytree stumpdisturbancesaltwatersaltwater marshkilling treesdelmarva peninsulaforestcoastal marine ecologycattus islandfloridasaltwater marshesriverbankdelawarechanging landscapeghost forestpineeast coastsoilland conversioncoastal ecologygroundwaterseawaterwildfirescoastal educationshorelinedead treesstorymapsapsalt stressmullica river estuarymaritime forestcedarsouth carolinadying forestgeographygedan labsalinesaltwoodtributariesblack needle rushtree deathnorth carolinasawgrasstidal inundationprime hook national wildlife refugeestuaryecologynew yorkclimate changecordgrassrising seasdroughtthe george washington universityspartina patensregenerationphragmitesblackwater national refugelow elevationgeologyghosts of the coastmarylanddying treesstumpfloodfloodingmid atlanticsalt tolerant plantseastern shorevirginiachanging shorelinechesapeake bayglobal warmingkeryn gedanwetlandsstormsweet gumtidesalt tolerantmarsh migration

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologybeach walkhorseshoe crabpicture

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 & WeatherEducationintertidaltidepoolrocky intertidalsand craboceanalgaesandyrockyrocky shoresin oceansmarinesand crabsteachersstudentssandy beachinvertebratesintertidal monitoring

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 & EnvironmentBiologyEducationrocky shorechitonquadratlimpetnew zealandmarineintertidalseaweedcitizen scienceoceancrab.

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 biologymarine biology marinefield work wildlife monitoring horseshoe crabwildlife monitoringhorseshoe crabmarine

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 & EnvironmentAnimalswashingtonshorelinecrabdungenessmonitoringappscavenger huntmycoastpictureoutdoorbeachoceannaturalistandroidapplemarineinvasive speciesbeach 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 & EnvironmentBiologyAnimalsmonitoriphonenew yorkcitizen-based monitoringhorseshoe crabmonitoringcrab.app

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