Almost sunset - Photo courtesy of Don Yurewicz
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Photo courtesy of Tom Gross


The Wrap-up meeting for the 2021 season is scheduled for

Saturday, October 2nd

It will be hosted via ZOOM at 9:00 AM

by Maria Gross and Don Yurewicz, AIS Patrol Coordinators

All who may be interested in joining the

AIS Patrol are welcome!

To join the meeting, please first register with either

Maria or Don:

Maria at maria.m.gross@gmail.com

603-491-3107 (cell) or 603-447-6068 (home)

Don at don.yurewicz@gmail.com or 713-253-1211 (cell)

Aquatic Invasive Species Patrol

Photo credit: Don Yurewicz


The Aquatic Invasive Species (AIS) Patrol is a dedicated group of volunteers who patrol Conway Lake in canoes, kayaks and on paddle boards monitoring the lake for invasive plants and animals. Early detection of invasive species is critical -- once introduced, invasive species can grow vigorously and spread rapidly (see photos below).  Successful remediation of a new infestation is therefore dependent on early detection and mapping.  Our goal is to collectively patrol the entire shoreline of Conway lake twice a month for the duration of the growing season, usually June through early October. 

To keep the Lake as we love it, pristine and healthy, its critical to work together and learn to distinguish between the lake’s native species and potential invasive look-alikes. The need to be vigilant and on the lookout for the appearance of invasive plants or animals cannot by minimized.  


As stewards, we recognize that Conway Lake faces unprecedented threats from increased recreational use, growing populations on and around the lake, and a steadily warming climate.  We are all the guardians of Conway Lake, and need to protect it from invasive species.


You don't need to be a biologist to join.  We will help you get started.  You’ll meet with an AIS member from our team to learn how we patrol and what to look for in the lake.  And we will provide guides to help you identify the plants and animals in the lake.  It’s a great way to enjoy Conway Lake and you can feel good about playing an important role in keeping the lake healthy.  Click this link to learn more about how we train our volunteers.

You can also learn more about us on the AIS Patrol Blog:  

(www.conwaylake.org/ais blog)  The Blog is where we post the results of our patrols on the lake and where you can find detailed descriptions of native and invasive species, maps of the lake, and helpful reference guides.


To join or if you would like more information please contact either: 

Maria Gross: maria.m.gross@gmail.com

603-491-3107 (cell) or 603-447-6068 (home)


Don Yurewicz:  don.yurewicz@gmail.com

713 253-1211 (cell)



LOOK at the Growth Difference Between INVASIVE and NATIVE Water-Milfoil !

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INVASIVE Variable Water-Milfoil from a Nearby Lake

native milfoil.jpg

NATIVE Water-Milfoil in

Conway Lake

Our Mission

Learn as much as possible about NH's native and invasive aquatic plants & animals, regularly patrol Conway Lake in order to identify and immediately address potential threats, and teach our communities ways we can defend the lake together.  To meet these goals, we strive to:

  • Learn to identify all native flora and fauna of Conway Lake.

  • Patrol the assigned zone(s) every other week from the end of June to early-mid October

  • Be accountable and notify fellow patrollers if patrolling is not possible at any time.

  • Mark suspicious plants using weighted floating markers and obtain GPS coordinates.

  • Share all patrol findings and areas patrolled at www.conwaylake.org/blog.  These patrols will be noted on a digital map of the lake to assure that all zones are covered.

  • Review patrol coverage in August and the end of September to assure that all zones are being checked.

  • Build awareness in the community by informing friends and neighbors about our efforts and the NH law to Clean-Drain-Dry ALL watercraft, trailers, live bait boxes, anchors, ropes, and fishing gear before launching into Conway Lake!

  • Attend relevant webinars offered by NH Lakes and Lake Stewards of Maine.

  • Aim to recruit one new patroller every season.