Lake Quassapaug, Middlebury
Lake Quassapaug is a 296 acre lake situated in Middlebury, CT. The lake is heavily used for recreational purposes but has no public boat ramp. All boating activity comes from residents of the lake or visitors to the many clubs. Lake Quassapaug home to Quassy Amusement Park. The park has a fleet of paddleboats as well as a beach for its visitors. A sailing club accesses the lake in the middle of the western shoreline. Middlebury Yacht Club has a beach at the southern tip. The northern half of the lake, including the eastern arm, is mostly residential. The western arm is heavily wooded with no housing.
Most vegetation is found in the arms and coves of the lake. The main body of the lake gets deep quickly as you move from the shoreline, making the main body too deep to support plant growth. Overall, Lake Quassapaug has a high species richness with 25 plant species being found. Two of the plant species are invasive: Myriophyllum heterophyllum (variable water milfoil) and Myriophyllum spicatum (Eurasian water milfoil). M. spicatum was found only in the small southwest arm. It was growing in a dense M. heterophyllum patch along with Utricularia purpurea, Brasenia schreberi, and Ceratophyllum demersum. M. heterophyllum was found in a majority of the coves and all of the arms of the lake. In many patches, especially the north and south western arms, M. heterophyllum grew in great abundance.
Six species of plants with floating leaves were found. M most abundant was Brasenia schreberi. Nymphaea odorata and Nuphar variegata could also be found in most sections of the lake. N. odorata and N. variegata were dominant in the northern tip of the western arm where it was the only two species found. The other plants with floating leaves were found growing in fewer quantities such as: Potamogeton pulcher, Potamogeton epihydrus, and Potamogeton bicupulatus. Five Utricularia species were found: U. geminscapa, U. gibba, U. machrorhiza, U. purpurea, and U. radiata. In both of the northern arms, all of the Utricularia species were growing together. Overall, twelve to fifteen species could be found in the shallow arms or larger coves of the lake making the lake very diverse in plant life.
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