Lake Iroquois Species Roster

The complete updated list of aquatic plant species in Lake Iroquois, provided by Misha Cetner and Bethany Sargent of the VT DEC is available below (click on the file to view or download the list).   Misha and Bethany spent a number of hours in September surveying Lake Iroquois. It's interesting to note that a survey was done as early as 1984 (see the "earliest record" column on the list). Scientific studies and surveys have been carried out on Lake Iroquois for many years! 

 Five species not previously recorded were found this year.  They are red pondweed, softstem bulrush, American bur-reed, big duckweed, lesser bladderwort, none of which are considered invasives.   Only curly-leaf pondweed, Eurasian watermilfoil, and purple loosestrife are considered invasive or "nuisance" species in Lake Iroquois. 

 This survey was done 9/14/2012 as part of the Vermont Invasive Patroller program.  The program trains citizens to survey a lake twice yearly, looking for new invasive species. Lake Iroquois has several trained surveyors (Roger Crouse, Kathy Hudson, Davey and Jerry DeGraff, and Jo and Chip Wright) who currently share the responsibility.

 The Greeter Program, run by the LIA, at the fishing access is aimed at keeping other invasive species out of Lake Iroquois. We know that there are almost 50 such species in Lake Champlain already, and that there are others threatening to enter the lake.  Many boats on Lake Iroquois have recently been in Lake Champlain and therefore have the potential of carrying invasive species into Lake Iroquois. Each year, our greeter program intercepts many boats carrying vegetation on their propellers, trailers, etc., and the program therefore reduces the risk of introducing new invasive species into Lake Iroquois.  The Vermont Invasive Patroller program is designed to detect any early infestation caused by plant or animal species that the greeter program has missed, so that early action can prevent further spread. 


---Chip Wright


Lake Iroquois Association,
Nov 13, 2012, 6:27 PM