crab.

within 25 miles

Apr 26, 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 & WeatherBiologymusselphenologysurveyphenologicalbeachamerican eelrestorationcoastduneecologybeachesmigrationcoastalgeologywater monitoringhorseshoe crabnew hampshirenew englandstewardshipsandeelspawningmonitoringwateroysterdunescrab

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 & EnvironmentBiologyAnimalssurveytrainingfloridahorseshoe crabbeach

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmenttidedelmarva peninsulasalt tolerantfloridagroundwatersoildead treesgeologybleached treescoastaleastern shoresalthurricaneblack needle rushsaltwater marshestuaryglobal warmingcoastal educationswamplow elevationstormfloodingmarshghosts of the coastdisturbancemullica river estuaryghost forestgedan labsalt water intrusioncoastal ecologysurvey123delaware baysweet gumtributarieschesapeake baysawgrassshorelineeast coastecologyblue crabclimate changeblackwater national refugepinevirginia coast reservestumpspartina patensgeographysalt tolerant plantsfloodsouth carolinasalt watermid atlanticnorth carolinageorgiastorymapforesttidal inundationdroughtnew jerseysea level risecoastal marine ecologyregenerationdelawarevirginiadying forestphragmitesrising seasthe george washington universitysaltwater marsheskeryn gedanmarinechanging landscapewoodmaritime forestprime hook national wildlife refugecordgrasswildfirestree stumpmarsh migrationchanging shorelineseawaterwetlandsriverbankcattus islandtree deathsalinemarylandsaltwaterdying treessapsalt stresskilling treessomerset countynew yorkcedarland conversion

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 & WeatherEducationrockyin oceansalgaesand crabsinvertebratesstudentsrocky shoresrocky intertidaltidepoolintertidal monitoringoceanteacherssand crabsandy beachintertidalmarinesandy

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 & EnvironmentBiologyEducationseaweedmarinequadratrocky shoreoceancrab.citizen sciencelimpetintertidalchitonnew 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 monitoring marine biologymarine marinefield workhorseshoe crab 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 & EnvironmentAnimalsbeach walkmarinepicturewashingtonoutdoorinvasive speciesshorelinenaturalistoceanappleandroidscavenger huntmonitoringmycoastdungenessbeachcrabapp

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 crabcrab.iphoneappmonitoringcitizen-based monitoringnew yorkmonitor

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