crab.

within 25 miles

Feb 21, 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 & WeatherBiologysandbeachesmonitoringspawningwaternew hampshiremigrationdunebeachnew englandamerican eelecologyphenologywater monitoringcoastalphenologicalgeologystewardshipsurveyoystercrabmusselduneseelrestorationcoasthorseshoe crab

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 & EnvironmentBiologyAnimalsbeachhorseshoe crabsurveytrainingflorida

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentblue crabdelmarva peninsulakeryn gedanfloridasea level risesweet gumphragmitesgeologygeographylow elevationswampwoodnew jerseyregenerationdying forestcoastal educationmarinemid atlanticgedan labecologycoastal ecologybleached treesmarshnew yorksalinecoastalchesapeake bayvirginia coast reservethe george washington universityblackwater national refugesapcedarcattus islandprime hook national wildlife refugemarylandwetlandsglobal warmingstorymapgeorgiaghosts of the coasttideeastern shorechanging landscapemaritime forestfloodingsalt water intrusiontree deathdisturbancechanging shorelinemullica river estuaryrising seasdying treesmarsh migrationdroughtpineland conversionvirginiawildfiressawgrassstormsouth carolinasaltwater marshescoastal marine ecologysalt stresssalt tolerant plantsghost forestsaltsurvey123climate changedelawaredead treesdelaware baystumpsomerset countyfloodseawaternorth carolinablack needle rushforestcordgrasseast coastriverbanksaltwater marshgroundwatershorelinespartina patenstributariessalt waterhurricanetree stumpkilling treessoilsalt tolerantsaltwatertidal inundationestuary

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologybeach walkhorseshoe crabpicture

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 & WeatherEducationtidepoolteachersintertidalsand crabsrocky shoresrockyinvertebratessandyrocky intertidaloceanalgaemarinesand crabsandy beachintertidal monitoringin 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 & EnvironmentBiologyEducationseaweedcitizen sciencequadratrocky shoreoceanintertidalcrab.new zealandlimpetchitonmarine

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 marine marine biologyfield workhorseshoe crab horseshoe crab wildlife monitoringwildlife 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 & EnvironmentAnimalsappleshorelineoceanandroiddungenessnaturalistscavenger huntwashingtonbeach walkoutdoorinvasive speciescrabbeachmonitoringappmarinemycoastpicture

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 & EnvironmentBiologyAnimalshorseshoe crabmonitoringcrab.monitornew yorkcitizen-based monitoringappiphone

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