crab.

within 25 miles

Oct 14, 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 & WeatherBiologyoysteramerican eelphenologicalbeachescrabrestorationdunescoastnew englandmigrationcoastalnew hampshireeelsandmonitoringwatergeologyhorseshoe crabdunespawningsurveyecologywater monitoringphenologystewardshipmusselbeach

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 & EnvironmentBiologyAnimalsfloridasurveytraininghorseshoe crabbeach

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentdisturbancesomerset countysalineblackwater national refugesouth carolinachesapeake baypinespartina patensmarylanddroughtnew yorkcordgrasschanging shorelinewetlandsclimate changestorymapsaltwater marshmullica river estuarynorth carolinasapgeographysalt tolerant plantslow elevationtidechanging landscapewildfirescoastalgroundwatertidal inundationphragmitesfloridaprime hook national wildlife refugegeologyvirginia coast reservesaltwaterseawatershorelineghosts of the coastmaritime forestvirginiariverbankmid atlanticsaltwater marshesswampblack needle rushdying treesforestwoodthe george washington universityghost forestsawgrassgeorgiakeryn gedanglobal warmingfloodingrising seaseastern shoreestuarymarshecologyeast coastland conversioncoastal marine ecologycoastal educationtree deathtributariesdying forestkilling treesbleached treessaltsalt toleranthurricanedelmarva peninsulastumpcattus islandsea level risedelawareblue crabsalt water intrusionsoilstormnew jerseydead treessalt stressmarinecedardelaware baysalt watersurvey123floodsweet gumcoastal ecologygedan labtree stumpmarsh migrationregeneration

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 & Environmentdelaware bayhorseshoe crabs

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 & WeatherEducationmarinestudentsteachersalgaesandy beachrockyrocky intertidalsand crabinvertebratesrocky shoresoceanintertidaltidepoolsand crabsin oceansintertidal monitoringsandy

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 shorecitizen sciencechitonoceanmarinelimpetnew zealandseaweedcrab.intertidalquadrat

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 & EnvironmentAnimalsshorelinemonitoringoceanscavenger huntappnaturalistoutdoorbeach walkpicturemarinecrabdungenesswashingtonbeachinvasive speciesmycoastandroidapple

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