First Confirmation of this Invasive Species in Connecticut
The Connecticut Department of Environmental Protection (DEP) announced that the highly
invasive freshwater alga, Didymosphenia geminata, known as "didymo", has been discovered in the West
Branch Farmington River, a very popular trout stream in northwestern Connecticut.
The presence of didymo was first confirmed in the northeastern United States in 2007, and has
since spread to other popular trout streams in a number of northeastern states (New Hampshire, Vermont,
New York, Pennsylvania, Maryland, West Virginia and Virginia). This is the first report of didymo in
Connecticut.
DEP first learned of the possible presence of didymo
in the West Branch Farmington River from several anglers
on March 18 th . One of these anglers also provided an initial
sample to DEP. Following initial review by DEP staff,
samples were sent to the Vermont Department of
Environmental Conservation where biologists have direct
experience identifying didymo. Late last Friday, Vermont
officials confirmed that the sample was indeed didymo.
"This find is very troubling," said DEP Deputy
Commissioner Susan Frechette. "Extensive blooms of this
organism can harm the river ecosystem and decrease its
recreational and economic value...."
For more information, download the press release through this link.