crab.

within 25 miles

Jun 20, 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 & WeatherBiologynew hampshiremigrationwater monitoringsurveyrestorationoystercoastalnew englandbeacheseelgeologymusselwatersandphenologydunesdunespawninghorseshoe crabamerican eelecologybeachphenologicalcrabcoaststewardshipmonitoring

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 & EnvironmentBiologyAnimalsfloridahorseshoe crabsurveytrainingbeach

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsurvey123killing treescoastalland conversionwoodsalineforestblue crabshorelinedead treesstormthe george washington universitymaritime forestsalt water intrusionsoilmarsh migrationclimate changenew jerseyblackwater national refugehurricanedying forestgeographyestuarytideglobal warmingvirginiaswampseawatereastern shorefloridacedarlow elevationghosts of the coastgedan labdelawaredelmarva peninsulacordgrasssalt tolerantgroundwatercattus islandkeryn gedanblack needle rushfloodrising seaschanging shorelinetidal inundationsalt waterdisturbancesaltwater marshnorth carolinapineprime hook national wildlife refugebleached treesmarshsouth carolinavirginia coast reservesalt tolerant plantsdelaware baygeorgiamid atlanticsawgrasswetlandssomerset countysweet gummullica river estuarysapsaltwatergeologynew yorkdroughttree stumpsalt stressdying treeswildfirestree deathchanging landscapefloodingghost forestecologytributariessaltcoastal educationmarylandsaltwater marshesphragmitesregenerationstumpmarinechesapeake baysea level risestorymapeast coastspartina patenscoastal marine ecologycoastal ecologyriverbank

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 & WeatherEducationsandy beachintertidalsand crabrocky shoressand crabsintertidal monitoringalgaerocky intertidalinvertebratesin oceanssandymarinestudentsteachersrockytidepoolocean

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 & EnvironmentBiologyEducationlimpetcrab.oceanseaweedmarinecitizen scienceintertidalrocky shorequadratchitonnew zealand

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 monitoringfield workhorseshoe crabmarine marine marine biology horseshoe crab wildlife 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 & EnvironmentAnimalsmarinepictureshorelinemonitoringbeach walkcrabscavenger huntnaturalistwashingtonbeachappoutdoordungenessinvasive speciesoceanmycoastappleandroid

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 yorkmonitorhorseshoe crabcitizen-based monitoringappiphonemonitoringcrab.

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