Invasive Aquatic Species Management

As of March 2013, twenty-four Maine waterways (encompassing forty-six distinct waterbodies) are known to be infested with invasive aquatic plants. Variable water-milfoil is still the most widespread of the known invasive aquatic plants in Maine.  Other invasive aquatic plants present in Maine include curly-leaf pondweed, Eurasian water-milfoil, European naiad and hydrilla.

Invasive Aquatic Plants Known to be in Maine

Variable water-milfoil
infestation in the Songo River at Sebago Lake State Park

Eurasian water-milfoil
infestation in a Scarborough quarry pond
photo by: Don Cameron

Culry-leaf pondweed
has infested West Pond in Parsonsfield
photo by: Ann BoveEuropean naiadEuropean naiad is currently known to occur in one Maine waterbody: Legion Pond in Kittery.  (In 2010 curly leaf pondweed was also found in Legion Pond, making this Maine’s first known “double infestation.”)

Hydrilla
infestation in Pickerel Pond in Limerick

Control Methods Used in Maine

MMI Guide CoverOnce an infestation has been confirmed, rapid response is crucial. The prospects for effective management or even eradication, is greatly increased by swift, well-planned, and properly executed controls.  The purpose of the Maine Citizens’ Guide to Invasive Aquatic Plant Management is to provide the information necessary to effectively manage invasive aquatic plant (IAP) populations; to prepare for such an eventuality; and to address all associated activities. Methods described in this Guide are based upon tested best management practices for controlling aquatic plants effectively and in a manner that protects wildlife and habitat.


Infested Waterbodies

Infestations Map 2013For those of us concerned about the spread of aquatic invaders in Maine, 2011 brought both good and bad news.  It also brought a new system for listing infestations.  Please click here for the full update.

Please click on map for larger version.

 

 


Diving for Milfoil

Diving For MilfoilWater-quality officials in Maine are on constant watch for non-native plants, especially variable leaf milfoil. “That’s a non-native nuisance perfectly suited for life in Maine’s ponds,” said Water Quality Manager Mary Jane Dillingham of the Auburn Water District. Nothing natural in Maine can keep it in check, which means it spreads and spreads. In the Basin, divers are removing milfoil by hand — basically, weeding underwater.

Please click here for complete article & video.

Our Mission

The Mission of the Maine Volunteer Lake Monitoring Program is to help protect Maine lakes through widespread citizen participation in the gathering and dissemination of credible scientific information pertaining to lake health. The VLMP trains, certifies and provides technical support to hundreds of volunteers who monitor a wide range of indicators of water quality, assess watershed health and function, and screen lakes for invasive aquatic plants and animals. In addition to being the primary source of lake data in the State of Maine, VLMP volunteers benefit their local lakes by playing key stewardship and leadership roles in their communities.

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The VLMP is a non-profit 501(c)(3) organization committed to the collection of information pertaining to lake water quality. For 40 years, trained volunteers throughout Maine have donated their time so that we may all learn more about one of Maine’s most beautiful and important resources — our lakes.