crab.

within 25 miles

Nov 10, 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 & WeatherBiologymusselstewardshipdunehorseshoe craboystersandbeachesspawningmigrationeelbeachwater monitoringphenologynew hampshirecrabcoastalgeologymonitoringwaterphenologicaldunesnew englandrestorationecologyamerican eelsurveycoast

PEBL CIC (Plant Ecology Beyond Land)

FishSpotter

Identify UK marine species on seaweed and shellfish farm seabeds

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsfishspecies identificationmarineunited kingdom

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 & EnvironmentBiologyAnimalstraininghorseshoe crabsurveybeachflorida

Ghosts of the Coast

Document the formation of ghost forests.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEducationEcology & Environmentspartina patensland conversionvirginia coast reserveglobal warmingcoastalchanging shorelinemarylandtidal inundationtributariesdisturbancesalt stressdelaware baygeographygroundwaterchanging landscapesaltwater marshsomerset countysouth carolinadying forestseawatersaltwater marshesbleached treesstormthe george washington universitycattus islandsalt tolerant plantscordgrassswampgeologyblue crabtree deathmullica river estuarystumpnew jerseyeastern shorecoastal educationsurvey123killing treessalt waterghost forestdelawarelow elevationdead treesclimate changegeorgiamarinedelmarva peninsulaestuarysawgrassdying treessea level risehurricanewildfiresfloodmarsh migrationnorth carolinashorelinefloridasaltwatermarshsapprime hook national wildlife refugetideecologymaritime forestghosts of the coastfloodingsoilregenerationgedan labvirginiacoastal marine ecologypinemid atlanticsalt toleranteast coasttree stumpcedarriverbankdroughtcoastal ecologyrising seassaltsalinewetlandssweet gumchesapeake bayblackwater national refugeblack needle rushphragmitesstorymapkeryn gedansalt water intrusionnew yorkforestwood

Horseshoe crabs as homes

Discover what species live on horseshoe crabs.

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsNature & OutdoorsOcean Water MarineBiologypicturebeach walkhorseshoe 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 & WeatherEducationteachersintertidalmarinesandy beachinvertebratesstudentsrockyoceansand crabsand crabsintertidal monitoringrocky shoresin oceansrocky intertidalalgaesandytidepool

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 & EnvironmentBiologyEducationseaweedlimpetcrab.new zealandchitonquadratrocky shoreoceanmarineintertidalcitizen science

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 Sciencemarinewildlife monitoringhorseshoe crabfield workmarine biology

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 & EnvironmentAnimalsoceanscavenger huntshorelinebeach walkoutdoorandroidmonitoringappapplemycoastdungenessbeachpicturenaturalistinvasive speciesmarinecrabwashington

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