crab.

within 25 miles

Apr 27, 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 & WeatherBiologysandeelcoastalphenologydunenew englandcoastcrabmusseldunessurveystewardshipamerican eelwater monitoringphenologicalnew hampshireecologygeologyoysterwaterspawningbeachesbeachrestorationmonitoringhorseshoe crabmigration

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 & EnvironmentBiologyAnimalssurveybeachfloridahorseshoe crabtraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsouth carolinasalt stressgedan labsalt tolerant plantsswampchanging landscapeeastern shorechesapeake baysomerset countydroughtforestghost forestsawgrassgeologytree stumpeast coastwildfiresregenerationecologyspartina patenssalt water intrusionsaltsoillow elevationseawatersurvey123pineblackwater national refugehurricanemid atlanticdelmarva peninsulavirginia coast reservemaritime forestsaltwater marshkeryn gedandisturbancecoastal marine ecologyrising seassaltwatersalt waterdying foresttidedying treestributariesriverbankchanging shorelinesweet gumsea level risemarshblack needle rushcattus islanddelaware bayglobal warmingvirginiacoastalsaltwater marshesfloridasalinestumpwoodbleached treesmarsh migrationstormfloodcoastal ecologycoastal educationtree deathphragmiteswetlandsstorymapmarinegeographykilling treesblue crabcordgrasscedarmarylandland conversionghosts of the coastnew yorkestuaryfloodingnorth carolinadead treesgroundwaterclimate changesapnew jerseysalt tolerantgeorgiadelawareprime hook national wildlife refugeshorelinetidal inundationthe george washington universitymullica river estuary

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 & WeatherEducationstudentsin oceanssand crabsrocky intertidalintertidal monitoringteacherssandytidepooloceanmarinerockysandy beachinvertebratessand crabintertidalrocky shoresalgae

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 scienceoceanrocky shorelimpetintertidalcrab.marineseaweedquadratnew zealandchiton

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 biologymarine horseshoe crabfield workwildlife monitoringhorseshoe crab wildlife monitoring marine biology marine

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 & EnvironmentAnimalsbeach walkshorelineappmarinebeachoceanmycoastwashingtondungenessinvasive speciesoutdoorapplecrabmonitoringpicturenaturalistandroidscavenger 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 & EnvironmentBiologyAnimalsnew yorkmonitoringmonitoriphonecrab.citizen-based monitoringhorseshoe crabapp

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