“Restoring Great Rivers: Amazing Work in Maine and Around the World” will be presented by Joshua Royte, conservation scientist for The Nature Conservancy in Maine and founding member of the World Fish Migration Foundation, on Wednesday, February 27, from 5:30 to 7:30 p.m. in the library’s Rines Auditorium. The program is part of the Portland Public Library’s Sustainability Series.

Royte’s work involves facilitating local to global partnerships, including collaborations for Penobscot River restoration, World Fish Migration Foundation and the EU’s AMBER project. According to Royte, in 2009, only 2,331 sea-run fish were counted migrating up Penobscot River and its tributaries. The Penobscot River restoration project has removed barriers and reconnected spawning habitat to the sea, and in the spring of 2018 the migrating count had exploded to 2.8 million fish.