crab.

within 25 miles

Mar 9, 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 & WeatherBiologyspawningcrabsurveymonitoringwater monitoringhorseshoe craboysteramerican eelecologymigrationbeachphenologicalnew hampshiregeologymusselcoastcoastalphenologydunestewardshipduneseelrestorationwaterbeachessandnew england

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 & EnvironmentBiologyAnimalsbeachhorseshoe crabtrainingfloridasurvey

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentcoastal educationtidemarsh migrationeast coasttree deathdroughtstormsalt watermarshchanging shorelinesalt water intrusioncordgrassthe george washington universitydelaware baydying treessoilsweet gumwoodnew yorkgeorgiakilling treesregenerationtributariescoastal ecologysaltwater marshesblue crabchesapeake baysurvey123marinestumpgedan labsawgrassgeographyrising seascoastalclimate changeghosts of the coastmullica river estuarytidal inundationblack needle rushspartina patenscoastal marine ecologyprime hook national wildlife refugesea level riselow elevationbleached treesfloodnew jerseydying forestsapvirginiakeryn gedanghost forestshorelinemid atlanticsaltwater marshhurricaneblackwater national refugemaritime forestforestdisturbancesaltcedarsouth carolinadelawaregroundwaternorth carolinachanging landscapevirginia coast reserveecologyglobal warmingland conversiontree stumpriverbankestuarywetlandssalt stresswildfiresswampstorymapfloodingeastern shorephragmitesdelmarva peninsulasaltwatersalineseawaterdead treessomerset countypinegeologymarylandfloridacattus islandsalt tolerantsalt tolerant plants

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 & WeatherEducationintertidaltidepoolsandyintertidal monitoringrockyoceanteacherssand crabssand crabmarinerocky shoresrocky intertidalstudentsin oceanssandy beachinvertebratesalgae

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 & EnvironmentBiologyEducationcrab.quadratseaweedlimpetrocky shoremarinechitonoceancitizen sciencenew zealandintertidal

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 biologyhorseshoe crabmarine biology wildlife monitoringfield work marine horseshoe crabwildlife monitoringmarine

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 & EnvironmentAnimalsmycoastmarinepicturebeach walkscavenger huntinvasive speciesbeachandroidmonitoringappshorelinenaturalistwashingtonoceancrabdungenessappleoutdoor

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.iphonemonitorcitizen-based monitoringappnew yorkmonitoring

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