crab.

within 25 miles

Oct 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 & WeatherBiologynew hampshiremigrationnew englandwater monitoringdunedunesmusselspawningbeachphenologyphenologicaloystersandrestorationcoastcoastalgeologyeelcrabecologymonitoringstewardshipbeacheshorseshoe crabwatersurveyamerican eel

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsspecies identificationunited kingdomfishmarine

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 & EnvironmentBiologyAnimalstrainingfloridabeachhorseshoe crabsurvey

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentwildfiresseawatertree stumpsapmarylandblue crabpinesalt tolerantriverbanksea level risecoastal ecologystormdisturbancedroughtnew jerseybleached treescoastal educationregenerationdying forestwoodblackwater national refugeswampland conversionkeryn gedanchanging landscapecattus islandtidewetlandsglobal warmingmarshhurricanedelmarva peninsulafloodsaltcordgrasssaltwater marshsalt tolerant plantssweet gumtributariesfloodinggedan labgroundwatercoastalcedarprime hook national wildlife refugesaltwaterspartina patenseastern shorenorth carolinageographyvirginiasouth carolinageologyecologyeast coaststorymapnew yorkgeorgiasomerset countyblack needle rushmarsh migrationsalinedead treessawgrasschanging shorelinemaritime forestforeststumprising seasmid atlanticshorelinemarineghosts of the coastkilling treesdelawarelow elevationfloridaclimate changeestuarymullica river estuarysalt water intrusiontree deathdying treestidal inundationphragmitescoastal marine ecologysoilsurvey123delaware baychesapeake baysalt stressthe george washington universitysalt waterghost forestvirginia coast reservesaltwater marshes

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 & WeatherEducationmarinerocky intertidaloceansand crabsand crabsrockyinvertebratesrocky shoresintertidalstudentssandy beachsandyin oceansteachersalgaetidepoolintertidal 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 & EnvironmentBiologyEducationchitonnew zealandquadratrocky shoreintertidalcitizen scienceoceanmarinelimpetcrab.seaweed

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 Sciencehorseshoe crabwildlife monitoringfield workmarinemarine 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 & EnvironmentAnimalsshorelinewashingtonapplebeach walkcrabmonitoringappoceaninvasive speciesmarinenaturalistpicturescavenger huntoutdoordungenessbeachmycoastandroid

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