crab.

within 25 miles

Dec 12, 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 & WeatherBiologyecologymigrationcoastalgeologymusselsurveystewardshiprestorationdunewater monitoringhorseshoe craboysterwatereelspawningnew englandbeachesphenologydunesbeachcrabcoastphenologicalsandnew hampshireamerican eelmonitoring

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 & EnvironmentBiologyAnimalsfloridasurveytrainingbeachhorseshoe crab

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentforestthe george washington universitysurvey123cedarmaritime forestspartina patensdisturbancesaplow elevationsawgrassfloridadying forestgedan labstorymapmid atlanticecologyfloodingnew jerseysaltwater marsheskilling treesfloodtidal inundationswampphragmitessalt water intrusionblack needle rushsaltwaterghosts of the coastgroundwatertree deathriverbankchanging shorelinesomerset countydelaware baywetlandssalinebleached treesclimate changenorth carolinanew yorksouth carolinapinecoastal marine ecologysaltwater marshprime hook national wildlife refugeblackwater national refugeland conversionmarinecoastal ecologyrising seassweet gumhurricanesalt tolerant plantscoastal educationvirginia coast reserveshorelinestormsalt watercattus islandvirginiatree stumpsoilmarshgeorgiastumpsalt stresschanging landscapedroughtwoodghost forestdead treeseast coastsalt tolerantcordgrasschesapeake baydying treesdelawaremarylandtributarieseastern shoresea level risetideseawatersaltestuaryregenerationmullica river estuarykeryn gedanblue crabgeographygeologywildfiresglobal warmingcoastaldelmarva peninsulamarsh migration

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 & WeatherEducationalgaesand crabsand crabsrockyteachersintertidal monitoringrocky intertidalrocky shoresin oceansmarinetidepoolstudentssandy beachintertidalsandyoceaninvertebrates

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 & EnvironmentBiologyEducationoceanquadratlimpetmarinecitizen sciencenew zealandseaweedrocky shoreintertidalchitoncrab.

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 marinemarine biologyfield workwildlife monitoring wildlife monitoring marine biology horseshoe crabhorseshoe 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 & Outdoorsapplenaturalistbeach walkoutdoorcraboceanappdungenessinvasive speciesscavenger huntandroidmarinebeachpictureshorelinewashingtonmycoastmonitoring

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 yorkhorseshoe crabmonitoringcrab.monitoriphonecitizen-based monitoringapp

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