crab.

within 25 miles

Dec 30, 2025

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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 & WeatherBiologybeachecologyeelspawningcoastphenologysandnew englandrestorationoysterbeachesmigrationsurveydunestewardshipamerican eelcrabphenologicalnew hampshirewater monitoringmonitoringwaterdunescoastalgeologymusselhorseshoe 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 & EnvironmentBiologyAnimalsfloridahorseshoe crabbeachtrainingsurvey

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentsalineblack needle rushsalt toleranttree stumpdroughtstormdying treessaltwater marshesland conversionchesapeake baydelawaremaritime forestcedarcattus islandsapblue crabmarinekeryn gedanthe george washington universityfloodingnorth carolinachanging shorelinesomerset countyvirginia coast reservenew jerseyblackwater national refugesweet gumeastern shoredisturbancekilling treesriverbankcoastal educationgroundwatertree deathtidal inundationmarsh migrationwetlandswildfiressalt water intrusiongeologysaltsurvey123prime hook national wildlife refugemid atlantichurricanesea level riseecologyestuarysalt stressglobal warmingforestghosts of the coastseawaterpinedelmarva peninsularising seaseast coastsaltwater marshstorymapcoastalmarshtidestumpfloridaswampsaltwaterghost forestphragmitesdelaware baygedan labcoastal ecologycordgrassspartina patensnew yorksoilsawgrasschanging landscapemullica river estuaryfloodsouth carolinavirginialow elevationregenerationdying forestsalt tolerant plantsbleached treescoastal marine ecologydead treesmarylandsalt watergeographyclimate changegeorgiashorelinetributarieswood

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 & WeatherEducationmarinesandysandy beachstudentsinvertebratesintertidalsand crabin oceansrockytidepoolteachersintertidal monitoringrocky shoresalgaesand crabsrocky intertidalocean

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 & EnvironmentBiologyEducationseaweedcrab.new zealandquadratintertidalcitizen sciencerocky shorechitonoceanmarinelimpet

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 horseshoe crabwildlife monitoring marine biologymarine biology wildlife monitoringfield workhorseshoe 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 ScienceAnimalsEcology & EnvironmentNature & Outdoorsdungenessinvasive speciesappappleshorelinewashingtonmarinepictureoceanandroidscavenger huntmycoastbeachcrabnaturalistmonitoringoutdoorbeach 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 & EnvironmentBiologyAnimalsmonitorhorseshoe crabcrab.new yorkcitizen-based monitoringiphonemonitoringapp

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