GROTON — The Nashua River Watershed Association invites the public to join us for a free presentation on “River Otters and Fishers in Massachusetts: A Tale of Two Weasels” on Tuesday, Dec. 11, at 7 p.m. at the NRWA River Resource Center at 592 Main Street. Our presenter will be Trina Moruzzi, Wildlife Biologist with the Massachusetts Division of Fisheries and Wildlife. Come learn the basics of river otter and fisher biology and ecology. Trina will talk about what these often mysterious animals are, where you can find them, what they eat, how they behave, and what signs you might see when they are present.

Did you know that river otters and fishers are both members of the weasel family? These weasels have adapted themselves to the water, to the trees, and even your backyard. In our region, the weasel family ranges in size from the red squirrel-sized long-tailed weasel (or ermine) to these two large weasels, otters and fishers (fishers can be 3-feet long and weigh up to 16 pounds).

Trina has been with the Division for 12 years. She assists on a number of different projects from waterfowl banding to black bear capture and radio telemetry, overseeing the deer hunt for paraplegic sportsmen, as well as providing outreach to communities on wildlife related issues.

This presentation is free and open to the public. Seating is limited and registration is strongly recommended. Seats for all registrants will be held until 6:55 p.m., at which time open seats will be released to walk-in attendees. To register contact Pam Gilfillan, NRWA Development Associate, at 978-448-0299, or email The NRWA is a nonprofit environmental organization that depends on memberships for support.