I paddled all of the north shore (Zone 2) and both sides of the Channel from Scribner Point to the town beach (Zone 3) today. I saw a lot of naiad and bladderwort(mostly purple bladderwort but also common bladderwort). It was very useful to have seen the samples of invasive spiny naiad that Cliff brought to the bbq. I collected quite a few samples of naiad in the Channel and all were native (they lacked the serated edges typical of the invasive spiny naiad).