crab.

within 25 miles

Jan 9, 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 & WeatherBiologyphenologynew englandamerican eeldunesoystereelwaterrestorationhorseshoe crabnew hampshiredunesurveystewardshipmonitoringmigrationcoastalgeologycoastbeachbeachesecologywater monitoringmusselphenologicalspawningsandcrab

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 crabsurveytrainingbeachflorida

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentrising seassapdelmarva peninsulafloodingvirginiablack needle rushgeologywildfirestidetree deathsalt stressfloodgedan labdead treessaltwater marshescoastalhurricanemullica river estuarystormsawgrassswampgroundwatersurvey123east coastestuaryland conversionchesapeake baydisturbancesoilcoastal marine ecologyblackwater national refugemid atlanticsaltsalt tolerant plantsmarsh migrationriverbankcoastal educationforestlow elevationsaltwaterphragmitesthe george washington universitychanging shorelinesalinesalt waternorth carolinasalt tolerantgeographyprime hook national wildlife refugeshorelinemarinemarshtidal inundationdying treessouth carolinawetlandsnew yorkcordgrasstree stumpkeryn gedanchanging landscapedelawareecologystumpcedarfloridasea level risedying forestkilling treesclimate changewoodglobal warmingseawaterpinegeorgiacoastal ecologystorymapsaltwater marshmaritime forestghost forestghosts of the coastdroughtbleached treesvirginia coast reservedelaware baysomerset countyspartina patenssweet gumregenerationcattus islandeastern shoremarylandnew jerseytributariesblue crabsalt water intrusion

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 & 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 & WeatherEducationstudentsinvertebratesintertidalalgaetidepoolrockyoceansand crabsin oceansrocky shoresteachersmarinerocky intertidalsand crabsandy beachintertidal 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 & EnvironmentBiologyEducationintertidalquadratseaweedcitizen sciencenew zealandchitonlimpetrocky shoreoceanmarinecrab.

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 crabfield work wildlife monitoring marine horseshoe crabmarine marine biologywildlife monitoringmarine 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 & EnvironmentAnimalswashingtonandroidbeach walkshorelinecrabbeachoceanapppictureoutdoorapplemarinenaturalistinvasive speciesmycoastdungenessmonitoringscavenger hunt

Cornell University Cooperative Extension of Suffolk County

New York Horseshoe Crab Monitoring Network

Promote conservation of horseshoe crabs in NY State.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineNature & OutdoorsEcology & EnvironmentBiologyAnimalscrab.monitoringhorseshoe crabiphonenew yorkmonitorcitizen-based monitoringapp

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