crab.

within 25 miles

Apr 30, 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 & WeatherBiologycoastecologyrestorationmonitoringnew hampshiresandphenologicalamerican eeloystermigrationwater monitoringcoastalstewardshipgeologynew englandhorseshoe crabwaterbeachescrabmusselduneduneseelphenologysurveybeachspawning

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 & EnvironmentBiologyAnimalshorseshoe crabbeachsurveyfloridatraining

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentrising seasgeographysalt water intrusionsomerset countycattus islandsalt stressvirginiafloodgeorgiatree stumpsalt tolerant plantsdelawaresaltwatereastern shoreeast coastchanging landscapephragmitesmaritime forestnew yorksalt watersawgrassbleached treesglobal warmingsapmarinefloridakilling treespinekeryn gedanseawaterestuarylow elevationcoastal ecologygedan labwoodmullica river estuarycoastal marine ecologyfloodingdying treesgroundwaterdying foresttidal inundationregenerationmarsh migrationforestmarshchesapeake bayvirginia coast reservechanging shorelinesaltshorelinenew jerseysoilcoastalgeologyswampsweet gumclimate changestormsalt tolerantstorymapsea level risesaltwater marshtree deathmarylandtidedelaware baythe george washington universitydroughtghosts of the coastdisturbanceghost forestsalinecordgrassblue crabsouth carolinastumpwetlandsspartina patensblackwater national refugesurvey123tributariesmid atlanticriverbankcoastal educationdelmarva peninsulasaltwater marsheshurricaneblack needle rushland conversionwildfiresecologydead treescedarnorth carolinaprime hook national wildlife refuge

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 beachteacherssandysand crabsintertidal monitoringmarineintertidalrockystudentsin oceansalgaerocky intertidaltidepoolsand craboceaninvertebratesrocky shores

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 & EnvironmentBiologyEducationquadratoceanlimpetintertidalcrab.citizen sciencemarinenew zealandseaweedrocky shorechiton

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 Sciencefield workmarine biology horseshoe crabmarine marine biology marinewildlife monitoringhorseshoe crab 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 & EnvironmentAnimalsscavenger huntbeach walkwashingtoninvasive speciesmycoastcrabshorelineoceanbeachappleoutdoorappdungenessmarinepictureandroidmonitoringnaturalist

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 & EnvironmentBiologyAnimalsmonitorhorseshoe crabiphonecrab.citizen-based monitoringnew yorkmonitoringapp

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