Aquatic Invasive Species

FOCW Diver pulling EWM

The Friends of the Cobbossee Watershed provides various programs to effectively fight against the existence and introduction of Aquatic Invasive Species (AIS) in our watershed. Read on to learn more about current infestations and management, as well as to learn about our three-step approach to AIS management.

Email alex@watershedfriends.com with any questions.

CLICK HERE for information on Cobbossee Outlet.
FOCW Staff pulling EFB

To learn more about infestations in our watershed, click on the images below.

Found in:

Cobbossee Lake

Cobbossee Stream

Found in:

Cobbossee Lake

Cobbossee Stream

Horseshoe Pond

Found in:

Annabessacook Lake

Cobbossee Lake

Cobbossee Stream

Pleasant Pond

Horseshoe Pond

Learn more about the different Aquatic Invasive Species programs below.

Step 1.
Prevention
Courtesy Boat Inspection

Trained Courtesy Boat Inspectors (CBIs) staff 10 public boat launches throughout the watershed, from Memorial Day Weekend through Labor Day Weekend. During inspections, CBIs share information with boaters on how to combat the spread of invasive aquatic species.

Step 2.
Early Detection
Invasive Aquatic Plant Survey

Detection is imperative for the successful eradication of invasive aquatic plants. Trained surveyors search shallow water areas for signs of invasive plants. Data collected helps plan a management strategy.

Step 3.
Removal
Invasive Aquatic Plant Control

Trained staff remove invasive aquatic plants by installing benthic barriers known as “milfoil mats”, and hand pull plants. A diver-assisted suction harvester (DASH) is used for larger infestations. Harvested plants are later incinerated.

Sign up for our newsletter

Stay in touch with the Friends of the Cobbossee Watershed. Receive monthly updates on our efforts and programs.