crab.

within 25 miles

Oct 29, 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 & WeatherBiologygeologymonitoringnew hampshirephenologyoysterduneamerican eelbeachescoastalstewardshipphenologicalhorseshoe crabwatermusselsurveydunessandspawningcrabrestorationcoasteelecologywater monitoringbeachnew englandmigration

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsunited kingdomspecies identificationmarinefish

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 & EnvironmentBiologyAnimalsfloridasurveytrainingbeachhorseshoe crab

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmenttree stumpnew yorksaltwater marshdroughtvirginiasalt waterdelaware baysapmarinesouth carolinasalinenorth carolinaspartina patenscedarsawgrassdying forestdisturbancenew jerseyrising seastidesoilstorymapmarshpinemaritime forestsea level risechesapeake bayshorelinesomerset countychanging landscapeseawaterwoodfloodsalt water intrusionwildfirestidal inundationghosts of the coastprime hook national wildlife refugesaltwaterghost forestcordgrasscattus islandfloridatree deathcoastal ecologystumpmullica river estuarywetlandsgeorgiamarylandsaltgeographycoastaleastern shoreblackwater national refugestormregenerationvirginia coast reservesalt tolerant plantshurricanesweet gumlow elevationglobal warmingbleached treesphragmitesriverbankgroundwatercoastal marine ecologysaltwater marshesswampblack needle rushchanging shorelinetributariesgeologydelawarekeryn gedaneast coastmarsh migrationcoastal educationdead treesland conversionmid atlanticforestblue crabecologysalt tolerantdying treesgedan labfloodingdelmarva peninsulakilling treesclimate changesalt stressestuarythe george washington universitysurvey123

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 & WeatherEducationsand crabsintertidalstudentstidepooloceaninvertebratessand crabintertidal monitoringsandymarinerockyrocky intertidalteacherssandy beachrocky shoresalgaein oceans

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 & EnvironmentBiologyEducationintertidalcrab.citizen sciencelimpetseaweedquadratnew zealandrocky shorechitonmarineocean

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 Sciencefield workmarine biologywildlife 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 & EnvironmentAnimalsmycoastapppictureandroidmonitoringmarinecrabdungenesswashingtonoceannaturalistinvasive speciesoutdoorbeachshorelinebeach walkapplescavenger hunt

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