herring

within 25 miles

Jul 9, 2026

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State of Maine

Maine Pennamaquan River Fish Counting Project

Count the number of anadromous fish using Pennamaquan fishway

Anywhere

Ongoing

Citizen Sciencemaine

Mystic River Watershed Association

Mystic River Herring Education Project

Connect students to the remarkable river herring migration.

Anywhere

Ongoing

Citizen ScienceBirdsBiologyOcean Water MarineAnimalsNature & OutdoorsEducationSocial ScienceGeographyPolicyospreymystic lakeecosystemsecologyvolunteermill creekadvocacyeelsnaturestemmonitoringherringzooplanktonwatershedmalden riverconnectscienceriverdataeaglessummer reading 2021black crowned night heronwildlifecommunity servicecitizen sciencemill brookaquaticfish ladderanadromouswater qualitymammalsmysticfishenvironmenthabitathorn pondreptilescormorants

Scenic Hudson: Volunteer Herring and Eel Monitoring

Help biologists learn why herring and eels are declining.

New York

Ongoing

Citizen ScienceBiologyEcology & EnvironmentOcean Water MarineAnimalsNature & Outdoors

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