crab.

within 25 miles

Apr 15, 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 & WeatherBiologywater monitoringcoastalgeologycoastmusselspawningbeachesphenologicalamerican eelphenologymonitoringnew englandoystercrabbeachrestorationwaternew hampshiremigrationdunessurveyeelsandstewardshipduneecologyhorseshoe 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 & EnvironmentBiologyAnimalsfloridabeachtraininghorseshoe crabsurvey

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentgroundwaterdying treesseawatergeorgiastorymapsomerset countychanging landscapeeastern shoredelawaredying forestmaritime forestgeologytidesoilchanging shorelineestuaryhurricaneriverbankswampkilling treesdisturbanceblue crabsalt water intrusioncoastal ecologysalinelow elevationdroughttidal inundationland conversiondelmarva peninsulaglobal warmingfloridageographychesapeake baysouth carolinamullica river estuarymarinewildfiresshorelinemarsh migrationdead treesecologynew yorkkeryn gedanvirginiastormbleached treessalt tolerantghosts of the coastfloodingsalt waterghost forestsapcoastalvirginia coast reserverising seasfloodblack needle rushregenerationpinedelaware baystumpsaltwater marsheswoodtree stumpcoastal educationmid atlanticsawgrasssweet gumspartina patenssaltnew jerseysurvey123marshcedarnorth carolinablackwater national refugemarylandsalt stressgedan labtree deathcattus islandcordgrasstributariessea level risesalt tolerant plantsphragmitesprime hook national wildlife refugesaltwatercoastal marine ecologysaltwater marshforestwetlandsclimate changethe george washington universityeast coast

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 & 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 beachintertidal monitoringin oceansrocky shoresrockyintertidaltidepoolrocky intertidalinvertebratesstudentsmarineteacherssand crabssandyoceansand crabalgae

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 & EnvironmentBiologyEducationseaweednew zealandquadratlimpetcrab.chitonintertidalmarinecitizen sciencerocky shoreocean

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 Sciencehorseshoe crab marine marine biologymarine biologymarine wildlife monitoringwildlife monitoringfield work horseshoe 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 & EnvironmentAnimalswashingtonoutdoorbeachpicturenaturalistdungenessappleoceanmycoastappshorelinecrabmarineandroidmonitoringscavenger huntinvasive speciesbeach walk

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.new yorkmonitorhorseshoe crabcitizen-based monitoringmonitoringiphoneapp

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