Herring Coming Soon

The herring migration will start again in May 2025.

Starting in May 2025 new videos will be available and we will be calling on volunteers to document the run size. Until that time, you can check out videos from last year to practice counting or see how the system works.

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 and record what you see. Scroll down for the latest data. Have questions about the online counting, check out the FAQs here.

Read instructions for more detail.

This project is led by the Mystic River Watershed Association to provide needed data to both estimate the herring run size and to also learn more about this keystone species to aid in recovery and restoration efforts.

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