crab.

within 25 miles

Sep 1, 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 & WeatherBiologyduneeelwater monitoringrestorationwaterdunessurveynew englandamerican eelmonitoringcoastalgeologycrabecologymusselphenologymigrationspawningphenologicaloysterstewardshipsandbeachescoasthorseshoe crabnew hampshirebeach

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsspecies identificationmarinefishunited kingdom

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 & EnvironmentBiologyAnimalshorseshoe crabfloridasurveybeachtraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentestuaryhurricanenew yorkthe george washington universitysapchanging shorelinevirginiawoodforestsalt tolerantdisturbancedead treesprime hook national wildlife refugemarylandland conversionstormghost forestphragmiteswetlandseast coastmarinemaritime forestsalt water intrusionbleached treesclimate changetree deathfloodsaltwater marshblack needle rushgroundwaternew jerseyregenerationmarshgeorgiaecologyspartina patensfloodingcoastal ecologyglobal warmingghosts of the coastgeographysea level risecordgrasssalt waterkeryn gedandroughtriverbankvirginia coast reservedelaware bayblackwater national refugecoastaldying treestidesalinemarsh migrationtributariesdying forestcoastal marine ecologychanging landscapeeastern shorekilling treesmullica river estuarycoastal educationcedarlow elevationstorymapnorth carolinaswamppinesweet gummid atlanticsouth carolinasoilstumpsaltwaterwildfiressaltwater marshesdelawareseawatercattus islandchesapeake bayfloridasalt tolerant plantsgeologytree stumpdelmarva peninsulashorelinesaltsalt stressgedan labsurvey123blue crabrising seastidal inundationsomerset countysawgrass

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 & WeatherEducationinvertebratesoceanintertidal monitoringstudentsteachersintertidalrockysand crabssandyalgaein oceanssand crabmarinerocky intertidaltidepoolrocky shoressandy beach

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 & EnvironmentBiologyEducationintertidalrocky shorechitonoceannew zealandquadratcrab.limpetcitizen sciencemarineseaweed

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 biologywildlife monitoringhorseshoe crabfield workmarine

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 & EnvironmentAnimalsinvasive speciesmycoastbeachmarinecrabandroidshorelineappoutdoorscavenger huntdungenesswashingtonapplepicturebeach walkmonitoringnaturalistocean

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