crab.

within 25 miles

Oct 14, 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 & WeatherBiologydunestewardshipmigrationrestorationbeachnew englandhorseshoe crabphenologydunesnew hampshiremonitoringphenologicalwater monitoringmusseloystereelcrabspawningsandgeologysurveyecologycoastcoastalwateramerican eelbeaches

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsspecies identificationfishunited kingdommarine

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 & EnvironmentBiologyAnimalstrainingsurveyhorseshoe crabbeachflorida

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentglobal warmingcoastal educationsapsaltwater marshesshorelinedelmarva peninsuladroughtsaltwater marshblackwater national refugemullica river estuarynorth carolinadisturbancesoilgeorgiaclimate changechesapeake baynew yorkland conversionsurvey123changing landscapevirginiadead treesblack needle rushcedarlow elevationsalt stresscoastal marine ecologyeastern shoresalinetree deathfloodingblue crabforestwildfiresmarylandfloridastumpprime hook national wildlife refugekilling treeswetlandschanging shorelinethe george washington universitygedan labspartina patensmarshmarsh migrationdying forestsawgrassrising seasghosts of the coastmaritime foreststormbleached treesseawaterhurricanesalt watercattus islandmarinecoastalsweet gumphragmitessalt water intrusionwoodsalt tolerantnew jerseygroundwatersouth carolinageographyswampdelawareecologyeast coastgeologytributariesfloodstorymapdelaware baydying treescordgrasssea level risemid atlanticsaltwatersalt tolerant plantsghost forestsaltsomerset countycoastal ecologyestuarytidetidal inundationregenerationriverbankvirginia coast reservepinetree stumpkeryn gedan

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologybeach walkpicturehorseshoe crab

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 & Environmenthorseshoe crabsdelaware bay

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 & WeatherEducationstudentsinvertebratesrocky intertidaltidepoolsand crabsrockyoceanmarinesandyintertidalrocky shoressand crabteacherssandy beachalgaeintertidal monitoringin oceans

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 & EnvironmentBiologyEducationnew zealandmarineintertidalcrab.quadratcitizen sciencelimpetrocky shoreoceanseaweedchiton

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 biologywildlife monitoringfield workhorseshoe crabmarine

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 & EnvironmentAnimalsoceanpicturemycoastandroidwashingtonmarinebeach walkbeachscavenger huntmonitoringdungenessappleinvasive speciescrabappnaturalistshorelineoutdoor

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