The Mink Brook watershed, Hanover’s largest, harbors healthy populations of wild brook trout, even in some of its smallest tributaries. Fisheries biologists from New Hampshire’s Fish and Game Department, working with volunteers from Trout Unlimited, the Conservancy’s Mink Brook Stewardship Committee, and Hanover students conducted a thorough study of the Mink Brook watershed in July, 2011.
The study is part of the Eastern Brook Trout Joint Venture, a region-wide effort looking at habitat for wild brook trout. At Mink Brook, biologists examined details of each section’s habitat characteristics, measured water temperature, and recorded the length, weight, and species of each fish captured. Fish were “borrowed” from the water by electro-fishing – a wand sending a weak electric current through the water temporarily stuns the fish, which can then be scooped up with a net and transferred to a bucket for study. All fish were returned to the brook after their brief examination.
Mink Brook is among the streams under study by Dartmouth for survival of young Atlantic salmon, and a number of young salmon turned up.