crab.

within 25 miles

Sep 7, 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 & WeatherBiologymusselnew englandeelecologyhorseshoe crabcoastaldunesphenologicalstewardshipcoastrestorationsurveyspawningwatermonitoringmigrationnew hampshirebeachescrabwater monitoringphenologygeologyamerican eelsandbeachoysterdune

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsfishunited kingdomspecies identificationmarine

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 & EnvironmentBiologyAnimalsfloridasurveybeachtraininghorseshoe crab

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentclimate changesalt watermullica river estuarytideriverbankflooddying treesfloridastormswampmaritime forestecologydelaware baychanging landscapefloodingsweet gumgeorgiadroughtdelawaretidal inundationsea level risedead treessapsaltnew jerseyeast coastblue crabmarinesalt water intrusionchanging shorelinedying forestgeographytree stumpphragmitescoastal educationforestsalt tolerantspartina patensshorelinesoilmid atlanticvirginia coast reservedelmarva peninsulachesapeake baysurvey123marshsouth carolinasaltwater marshgedan labpineprime hook national wildlife refugeland conversionrising seasregenerationhurricanemarylandwetlandsstumpsalt tolerant plantsnorth carolinaglobal warmingeastern shorecordgrassblackwater national refugegroundwaterghost forestkilling treesnew yorkbleached treesblack needle rushkeryn gedanlow elevationcattus islandmarsh migrationsalineseawaterghosts of the coastthe george washington universitysaltwater marshessomerset countywoodsaltwaterstorymapsalt stresssawgrasscedarcoastal ecologyvirginiatributariesestuarywildfirescoastal marine ecologygeologydisturbancecoastaltree death

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologypicturebeach walkhorseshoe 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 & WeatherEducationoceansandy beachmarineinvertebratesstudentsintertidal monitoringteachersrockytidepoolsand crabalgaein oceanssandysand crabsintertidalrocky intertidalrocky shores

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 shorenew zealandoceanseaweedquadratchitonintertidallimpetmarinecrab.citizen science

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 biologyhorseshoe crabmarinewildlife monitoring

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 & EnvironmentAnimalsbeach walkshorelineappandroidappleinvasive speciesdungenesscraboceanmarinewashingtonmonitoringpictureoutdoormycoastbeachnaturalistscavenger hunt

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