crab.

within 25 miles

Feb 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 & WeatherBiologycoastalstewardshipnew englandamerican eelcoastgeologymusselsurveyeelwaterrestorationoystermonitoringphenologybeachescrabsandnew hampshireduneecologyhorseshoe crabspawningmigrationphenologicalbeachwater monitoringdunes

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 & EnvironmentBiologyAnimalssurveytraininghorseshoe crabfloridabeach

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentmarylandnew jerseyphragmitessalinehurricanegedan labswampsweet gumdelmarva peninsulasoilwoodsaltwater marshdelawarecoastal educationdying treesland conversionwetlandsblue crabriverbankmid atlantictideshorelinesaltwater marshessurvey123marinefloodingchesapeake bayprime hook national wildlife refugedroughtlow elevationsaltghosts of the coastsalt water intrusionmarsh migrationseawaterfloodsomerset countychanging landscapeghost forestglobal warmingmarshkilling treessapcoastal marine ecologyvirginiacordgrassregenerationmaritime forestgroundwaterdisturbancemullica river estuarystumpsouth carolinasawgrassfloridableached treesstormpineecologytree deathdying forestnew yorkvirginia coast reservesea level riseforestgeologycoastal ecologycedartidal inundationstorymapcattus islandgeographywildfiressalt tolerant plantscoastalsalt tolerantsalt waterdelaware bayeastern shorespartina patenschanging shorelinesalt stressdead treesblackwater national refugenorth carolinatree stumpblack needle rusheast coastrising seassaltwaterkeryn gedantributariesclimate changethe george washington universitygeorgiaestuary

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 & WeatherEducationrockystudentsinvertebratesrocky intertidalteacherssandy beachsand crabmarinein oceanssand crabsintertidal monitoringoceanintertidaltidepoolrocky shoresalgaesandy

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 & EnvironmentBiologyEducationquadratcitizen scienceoceanseaweedintertidalmarinerocky shorenew zealandlimpetcrab.chiton

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 Science marine biology marinehorseshoe crabfield work horseshoe crabwildlife monitoringmarine biologymarine wildlife monitoring

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 & EnvironmentAnimalsoceanmycoastshorelinescavenger huntdungenessappleinvasive speciesmarinebeach walkmonitoringpicturenaturalistbeachwashingtonoutdoorandroidappcrab

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 & EnvironmentBiologyAnimalscrab.monitoriphoneappnew yorkcitizen-based monitoringhorseshoe crabmonitoring

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