crab.

within 25 miles

Mar 20, 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 & WeatherBiologybeachesmigrationwater monitoringhorseshoe crabspawningoysterphenologicalgeologyecologybeachcoastalwatersurveystewardshipdunephenologysandamerican eelcoastnew hampshireeelmusseldunescrabnew englandrestorationmonitoring

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 & EnvironmentBiologyAnimalsbeachfloridasurveyhorseshoe crabtraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentcoastalkilling treesblue crabtidegroundwatersawgrasscoastal educationblack needle rushwetlandstributariesregenerationsea level risesomerset countycoastal ecologysouth carolinamarineglobal warmingeast coastdelawaredelaware bayprime hook national wildlife refugefloodsalt water intrusiondroughtmarylandsalt tolerantblackwater national refugedying foresttree deathmaritime forestswampmarshland conversionmarsh migrationphragmiteswildfiresvirginia coast reserveforestgeologyestuarylow elevationnorth carolinachanging landscaperising seasghost forestspartina patenssaltsalt stresstree stumpstorymapghosts of the coastsaltwater marshecologycoastal marine ecologystumpcordgrasskeryn gedanchesapeake baysaltwaterfloodingpinehurricanegeographythe george washington universityeastern shoreshorelinesurvey123salt waternew jerseygedan labwoodbleached treesmid atlanticclimate changecedarseawatersaltwater marshesriverbankfloridadelmarva peninsulasoildead treestidal inundationcattus islandvirginiasalinesapstormnew yorksalt tolerant plantschanging shorelinedisturbancesweet gummullica river estuarydying treesgeorgia

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 & WeatherEducationrockysand crabintertidal monitoringsand crabsinvertebratesrocky shoresoceansandy beachmarinetidepoolalgaeteachersin oceansrocky intertidalstudentsintertidalsandy

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 zealandseaweedmarineoceanquadratcrab.citizen sciencerocky shoreintertidallimpetchiton

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 horseshoe crabhorseshoe crab wildlife monitoring marine biologymarinefield workwildlife monitoring marinemarine 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 ScienceNature & OutdoorsEcology & EnvironmentAnimalsshorelinebeach walkappleoutdoorappinvasive specieswashingtonmycoastbeachmonitoringandroidscavenger huntcrabdungenessoceanmarinepicturenaturalist

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 & EnvironmentBiologyAnimalsmonitorcitizen-based monitoringmonitoringnew yorkiphonehorseshoe crabappcrab.

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