Adirondack AIS Prevention Program Courtesy Inspections

Why inspect boats?

Boat inspections are essential for preventing the inadvertent introduction of aquatic invasive species into the pristine waters of the Adirondack region. Once introduced and established, aquatic invasive species are nearly impossible to eradicate and can have devastating environmental and economic impacts.  Aquatic invasive species, including both plants and animals, are easily transported by trailered boats so taking active prevention measures is key to successfully limiting their spread. Boat stewards will inspect your watercraft for any plant or animal material, dead or alive, that may pose a risk to Adirondack waters and remove it.

What are inspectors looking for?

Primary species of concern include:



For more information on aquatic invasive species, their impact and how to prevent their spread, visit

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Hydrilla (Hydrilla verticillata) is probably the most well-known aquatic invader. Some even call it the perfect aquatic invader because of its ability to adapt and aggressively outcompete native vegetation in waterways. Populations of Hydrilla have been found as far north as Cayuga Inlet and the Erie Canal but thankfully it has not yet been discovered in the Adirondacks. Under ideal growing conditions hydrilla is able to grow up to an inch per day, and once it reaches the water's surface it expands into a dense, floating mat of vegetation that inhibits swimming and boating. With hydrilla's close proximity to the Adirondacks and its aggressive characteristics, it is extremely important to be aware of this aquatic plant and the consequences of its invasion.

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The mission of the Adirondack Watershed Institute of Paul Smith's College is to protect clean water, conserve habitat, and support the health and well-being of people in the Adirondacks through science, collaboration, and real world experiences for students.

Adirondack Watershed Institute
Paul Smith's College
P.O. Box 265, Paul Smiths, NY 12970-0244
Tel: 518-327-6213
Fax: 518-327-6369