Hidden Lake, Higganum - 2018
Hidden Lake is a 39 acre waterbody located in Higganum, CT. It is shallow with a maximum depth of two meters. The lake is bordered by dense development of residential homes with a dam at the lake’s west end. Access is limited to residents, and boats with motors are prohibited.
Our July 2018 survey was a resurvey of the lake; originally performed in 2005. Similar to 2005, the lake had a high abundance of plants with the northern, southern, and western coves having the highest plant density. No nonnative invasive species were present in either year. In 2005, the most abundant species was white water lily (Nymphaea odorata). Other floating-leaved species, such as watershield (Brasenia schreberi) and yellow water lily (Nuphar varigata), were common as well. In 2018, these species were less abundant and scattered throughout the lake. No large patches were present that would likely hinder recreational use. The reduction in plant density in 2018 may be due to the previous winter’s drawdown.
The most abundant species in the 2018 survey were small pondweed (Potamogeton pusillus), slender naiad (Najas flexilis), common bladderwort (Utricularia macrorhiza), purple bladderwort (Utricularia purpurea) and eel grass (Vallisneria americana). These species were each found throughout the majority of the lake, often growing together. Other species were found in less abundance along the shore of the lake: primrose willow (Ludwigia species), waterwort (Elatine species), spikerush (Eleocharis species), pickerelweed (Pontederia cordata), ribbonleaf pondweed (Potamogeton epihydrus), snailseed pondweed (Potamogeton bicupulatus), and floatingleaf pondweed (Potamogeton natans).
|Species recorded in our 2018 survey of Hidden Lake.
|Common Bladderwort||Ribbon-Leaf Pondweed||Tapegrass|
|Floating-Leaf Pondweed||Slender Naiad||Watershield|
|Primrose-Willow||Snailseed Pondweed||White Water Lily|
|Purple Bladderwort||Spikerush||Yellow Water Lily|
Other Hidden Lake Surveys: 2005 Survey