crab.

within 25 miles

Sep 4, 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 & WeatherBiologydunestewardshipoysterwaterbeachesrestorationcoastphenologicalmigrationeelnew englandwater monitoringphenologycoastalhorseshoe crabmusselspawninggeologybeachmonitoringcrabdunesnew hampshiresandamerican eelsurveyecology

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsunited kingdomspecies identificationmarinefish

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 crabsurveybeachtraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentcoastal educationkeryn gedanwetlandswildfiresdelaware baysaltwatercoastal ecologychanging shorelinesurvey123saltwater marshdelmarva peninsulaprime hook national wildlife refugesea level risegeorgiatideforestblue crabkilling treesmarsh migrationphragmiteseast coastwoodnew yorkdroughtsweet gumghosts of the coaststorymapdelawaresawgrasstidal inundationdying treessouth carolinasalt watersoildisturbancedying forestblack needle rushgroundwatercoastalstumptree stumpfloodthe george washington universitygeologysapclimate changefloridaland conversionsalt water intrusionsalthurricaneshorelinevirginiaseawatercordgrassnew jerseysaltwater marshesswampmaritime forestspartina patenspinechesapeake baynorth carolinasomerset countygeographyghost forestmarshecologycedarsalt tolerantdead treestree deathriverbanktributariesfloodingcattus islandchanging landscapesalt stressgedan labblackwater national refugeglobal warmingmarylandmarineestuarymid atlanticsalt tolerant plantssalineeastern shorestormcoastal marine ecologylow elevationbleached treesrising seasregenerationmullica river estuaryvirginia coast reserve

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 & WeatherEducationrockymarineintertidalteachersrocky intertidalintertidal monitoringrocky shoressand crabsoceaninvertebratessand crabtidepoolalgaesandysandy beachin oceansstudents

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 & EnvironmentBiologyEducationmarinenew zealandcrab.quadratlimpetintertidalcitizen sciencerocky shorechitonoceanseaweed

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 monitoringmarinemarine biologyfield workhorseshoe 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 ScienceNature & OutdoorsEcology & EnvironmentAnimalsbeach walkbeachandroiddungenesscrabappoutdoorwashingtonmarineapplemonitoringoceaninvasive speciesscavenger huntshorelinepicturemycoastnaturalist

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