Hamlin Pond, Plainville


2005 Aquatic Plant Survey Map of Hamlin Pond

Transect Data | Water Data

Hamlin Pond is in an intensively developed area with condominiums along the southern shore and highways running along the northern and eastern sides. A small swamp is located on the northwest side of the 12-acre pond extending to the west along the north side of a stream that enters the western side of the pond.          

Coontail (Ceratophyllum demersum), a native submerged plant, was the most abundant aquatic plant species during our August 2005 survey. It occurred in an uninterrupted band around the edge of the pond, growing densely from the bottom to the surface in up to 6 feet (2 m) of water. Yellow water lily (Nuphar variegata) occurred in several large patches around the edge of the pond and grew all along the northwest shoreline. Leafy pondweed (Potamogeton foliosus) also grew on all sides of the pond but was found in much smaller patches. The invasive Eurasian watermilfoil (Myriophyllum spicatum) was recorded only at a boat launch on the pond’s southern shore along with western waterweed (Elodea nuttallii) and large-leaf pondweed (Potamogeton amplifolius). Western waterweed also was found in the eastern edge of the lake, while large-leaf pondweed also was found on the western edge of the lake along with common duckweed (Lemna minor) and watermeal (Wolffia species). Plants were not found in the pond's center.

Species recorded in our 2005 survey of Hamlin Pond.
Scientific Names
*Invasive Species
Common duckweed Small pondweed
Coontail Watermeal
Eurasian watermilfoil* Western waterweed
Large-Leaf pondweed Yellow water lily