Kennebec Estuary Land Trust will sponsor a series of five programs to celebrate World Fish Ladder Migration Day at the Nequasset Fish Ladder on April 21.

Project coordinator Ruth Indrick will lead the days’ activities, which begin at 9:30 a.m. with birding at Nequasset Lake. The kids’ story hour and activities program will begin at 11 a.m. and will include a story about alewives, interactive games to learn about alewives and their migration and alewife-centered crafts.

KELT is encouraging people to bring their own watercraft to join local experts for a tour of the lake, an introduction to the alewife harvest and a presentation about the way uses of the lake have changed over time.

There will be a talk with a member of the Woolwich Fish Commission about alewife migration across the state, the design and construction of the alewife ladder, the number of fish that are harvested or spawn in the lake each year and how to be a part of the KELT’s annual fish count.

The day-long activities will conclude at 4:30 p.m. at the Woolwich Town Office after a presentation about the history of Nequasset Lake, Nequasset Dam and the Nequasset alewife harvest.

According to a press release from KELT, World Fish Migration Day is a global celebration of rivers and fish with events scheduled in more than 50 countries. KELT is hosting the series of events in Woolwich to celebrate the importance of the harvest, which this year begins in early May.

“The active fish run and alewife harvest at Nequasset Dam has been an important part of the town of Woolwich for hundreds of years,” the release said. “The restoration of the fish ladder in fall of 2014 has helped ensure the continued success of the alewife run for many years to come.”

For more information, contact Ruth Indrick at [email protected] or visit kennebecestuary.org.