Middle Bolton Lake, Vernon - 2010

2010 Aquatic Plant Survey Map of Middle Bolton Lake

Transect Data | Water Data

The 2010 survey of Middle Bolton Lake found 26 species of aquatic plants. Two of the species, minor naiad (Najas minor) and variable-leaf watermilfoil (Myriophyllum heterophyllum), are invasive aquatic plants. Minor naiad was occurring in two small patches in the northern cove of the lake. Variable-leaf watermilfoil can be found in patches throughout the lake. Similar to the 2005 survey, watershield (Brasenia schreberi), golden hedge-hyssop (Gratiola aurea), and sevenangle pipewort (Eriocaulon aquaticum) were commonly found together growing in large patches throughout the southern and eastern sides of the lake. The western side of the lake had sparser vegetation present. Bur-Reed (Sparganium species), pickerelweed (Pontederia cordata), and spotted pondweed (Potamogeton pulcher) were most frequently present along the western border. The northern cove is the most species rich area of the lake. All 26 species can be found in the northern area of the lake. Spotted pondweed occurs most frequently with the largest patch found in the northern portion.