crab.

within 25 miles

Sep 16, 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 & WeatherBiologydunebeachesrestorationwateramerican eelphenologicalsurveyhorseshoe crabbeachsandnew englandecologyspawningcoastalphenologyeelcraboystermusselcoastmonitoringnew hampshiremigrationwater monitoringstewardshipgeologydunes

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsspecies identificationunited kingdommarinefish

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 & EnvironmentBiologyAnimalstrainingbeachhorseshoe crabfloridasurvey

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsaltwaterdying treesphragmitesstormthe george washington universitysea level riseghost forestfloodingswamptree deathmarylandbleached treestree stumpghosts of the coastforestglobal warmingeast coaststumpcoastalgeologykeryn gedanmarsh migrationdead treesblue crabcordgrasswildfiresdroughtsalt water intrusionspartina patensdelmarva peninsulachesapeake baygeorgiageographyvirginialow elevationkilling treessomerset countywoodgedan labmullica river estuaryecologymaritime forestvirginia coast reservesouth carolinashorelinefloridaseawatercattus islandsalt tolerantrising seassalt tolerant plantssweet gumclimate changeblack needle rushnew yorkriverbankwetlandsmid atlantictidesaltwater marshmarshnorth carolinanew jerseysapsaltwater marshesgroundwatersawgrassdelawaresalt waterestuaryregenerationfloodsurvey123marinecedardying forestchanging landscapeeastern shoreprime hook national wildlife refugecoastal ecologydisturbanceblackwater national refugesalinepinedelaware baycoastal marine ecologycoastal educationsaltchanging shorelinetributariestidal inundationsalt stressland conversionstorymapsoilhurricane

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 & WeatherEducationrockymarineteacherssandyrocky shoresin oceansalgaesand crabssand crabtidepoolintertidal monitoringrocky intertidalinvertebratessandy beachintertidaloceanstudents

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 & EnvironmentBiologyEducationcitizen sciencequadratintertidallimpetnew zealandrocky shorechitonoceancrab.marineseaweed

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 Sciencemarine biologyfield workwildlife 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 & EnvironmentAnimalsshorelinemonitoringinvasive specieswashingtonbeach walkbeachpictureandroiddungenessappscavenger huntmycoastcrabnaturalistmarineappleoutdoorocean

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