crab.

within 25 miles

Dec 5, 2025

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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 & WeatherBiologyduneeeldunesspawningsandbeachnew englandcoastwater monitoringoysternew hampshirephenologicalbeachessurveymonitoringphenologycrabrestorationcoastalecologyhorseshoe crabwatermigrationamerican eelstewardshipgeologymussel

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 & EnvironmentBiologyAnimalssurveybeachhorseshoe crabfloridatraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentdelaware baygeorgiahurricanesalinesomerset countyfloridamarsh migrationdying forestgeographygedan labeastern shoreprime hook national wildlife refugeblue crabestuarydisturbancedying treesdead treeschesapeake baysoilforestcoastal ecologyghost forestregenerationkilling treessapsaltwater marshesland conversionsalt watermarshcoastal educationchanging shorelinecattus islandgeologywetlandsfloodshorelinesaltsalt tolerantthe george washington universitydelawaretree deathrising seassalt tolerant plantsnew yorksaltwater marshfloodingeast coastnorth carolinasalt water intrusiondelmarva peninsulablackwater national refugemarinewildfireschanging landscapelow elevationsouth carolinagroundwaterswamppinemaritime forestbleached treesmid atlanticsurvey123saltwaterstorymapcoastalvirginiacordgrassglobal warmingnew jerseystumpcoastal marine ecologysawgrassstormdroughttributariesghosts of the coastmullica river estuarysalt stresssweet gumtree stumpclimate changephragmitesecologyblack needle rushspartina patenstidecedarmarylandsea level risetidal inundationkeryn gedanriverbankvirginia coast reservewoodseawater

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 & WeatherEducationrocky intertidalin oceanstidepoolintertidal monitoringsandyinvertebratesstudentsmarineintertidalrocky shoressandy beachteachersalgaesand craboceansand crabsrocky

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 & EnvironmentBiologyEducationchitonmarinecitizen sciencerocky shorelimpetquadratoceancrab.new zealandintertidalseaweed

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 Sciencewildlife monitoringhorseshoe crabmarine biologymarinefield work wildlife monitoring marine marine biology horseshoe crab

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 ScienceAnimalsEcology & EnvironmentNature & Outdoorsshorelinecrabnaturalistapplebeachpictureappinvasive speciesbeach walkoutdoormycoastmonitoringmarineandroiddungenessoceanscavenger huntwashington

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 & EnvironmentBiologyAnimalsnew yorkiphonemonitorhorseshoe crabcitizen-based monitoringmonitoringcrab.app

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