crab.

within 25 miles

May 6, 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 & WeatherBiologymigrationeelspawningnew hampshirewatercoastamerican eelrestorationphenologyoysterdunephenologicalhorseshoe crabwater monitoringdunescoastalgeologynew englandbeachmusselbeachescrabmonitoringsandecologysurveystewardship

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 crabtrainingfloridasurveybeach

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsaltwater marshesdelawarecoastal educationghosts of the coastfloodingmid atlanticland conversionsalt water intrusionriverbankpinenew jerseystumpcoastalregenerationcoastal marine ecologymarsh migrationgedan labestuarynorth carolinageologysalineblackwater national refugegeorgiadying forestchanging landscaperising seasspartina patensstorymapshorelinechesapeake baysaltwaterghost forestmullica river estuarysalt stressforestlow elevationhurricanemarinedroughtglobal warmingblack needle rushsurvey123wetlandsdelaware baysaltwater marshgeographymarylandtidal inundationstormcordgrasskilling treesbleached treessoilmaritime forestwildfiressea level risesawgrassfloodsalt waterdying treeseast coastsouth carolinasalt tolerant plantswoodecologyclimate changenew yorkdisturbancekeryn gedanmarshdead treesvirginia coast reserveseawaterdelmarva peninsulasaltgroundwatercoastal ecologysalt tolerantsomerset countyfloridacedarsweet gumeastern shorecattus islandtree deathswampchanging shorelinesapphragmitesblue crabtideprime hook national wildlife refugetree stumptributariesthe george washington universityvirginia

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologypicturehorseshoe crabbeach walk

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 & WeatherEducationoceanrocky intertidalsandyinvertebratesteachersstudentstidepoolin oceansintertidalintertidal monitoringalgaerockysand crabmarinesandy beachrocky shoressand crabs

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 scienceseaweednew zealandintertidalquadratoceanlimpetcrab.rocky shorechitonmarine

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 biologymarinewildlife monitoring wildlife monitoringhorseshoe crab horseshoe crab marine marine biologyfield work

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 & EnvironmentAnimalsnaturalistbeach walkmarinecraboceanappledungenessmonitoringinvasive speciesscavenger huntwashingtonappoutdoorpictureandroidmycoastbeachshoreline

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 & EnvironmentBiologyAnimalsappmonitorhorseshoe crabiphonenew yorkmonitoringcrab.citizen-based monitoring

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