Water Chestnuts Threaten The Floating Meadows

water chestnut pull July 22The aquatic plant known as the water chestnut (trapa natans, not the kind you eat in Chinese food) showed its invasive potential this past summer at many points along the Connecticut River and its tributaries. In our own Floating Meadows, the freshwater, tidal marshland formed where the lower Coginchaug and Mattabesset Rivers converge, the presence of these plants was first recorded in 2009.  The Jonah Center has been monitoring the area closely since 2013, pulling out a few plants each year.

The summer of 2016 was different! Water chestnuts abounded as we have never seen before, forming expansive, dense patches at multiple locations.  The Jonah Center and its partners removed approximately 48 canoes full in the course of 8 separate work parties.  The most productive effort was on July 22, when we had 14 canoes, 2 motor boats, and 16 kayaks deployed. Each canoe was filled at least twice, yielding a total estimated haul of 30 canoes full on that single afternoon. Continue reading