They’re back!

The 2022 herring migration has begun. Let’s get counting!

Note: if you're not seeing any fish in the videos, don't panic! They're just arriving and it will take a few weeks before we can expect every video to have some fish. Counting these early videos is still super helpful (even if they're all zeros) as it helps us pin-point when the migration begins.

Love Nature? Count Fish.

Help us track river herring populations in the Mystic River watershed, and be part of an environmental success story. Watch a video (60 seconds max) and record what you see. Read instructions for more detail and scroll down for the latest data. Have questions about the online counting, check out the FAQs here. The run starts in the spring of every year and goes through June.