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New Hampshire Department of Environmental Services

Watershed Management Bureau

  Exotic Species Program

    Facts and Figures



* Over 40 of New Hampshire's waterbodies are impacted by various species of EXOTIC aquatic plants.
* The dispersal of plant fragments poses the greatest threat to our waterbodies. Each fragment is capable of producing another plant.
* EXOTIC aquatic plants can reduce the diversity of native plant, animal, and insect species.
* Most NATIVE plant species are very beneficial to our waterbodies, providing food, shelter, and oxygen for organisms in and around the water.
* EXOTIC aquatic plants can reduce the value of waterfront properties.
* EXOTIC aquatic plants can make boating and swimming difficult and dangerous.
* Dense growths of EXOTIC aquatic plants can stunt fish growth, impacting the fisheries in our waterbodies.
* Milfoil and fanwort can grow as tall as 20 feet in waterbodies they infest.
* Of the fourteen species of prohibited exotic plants, eight are currently found in New Hampshire. Others are already present in neighboring states!
* YOU can help prevent the spread of exotic aquatic plants.

Exotic Species...
Aquatic Plant Photos
Control Activities
Exotic Plant Distribution Map
Exotic Species Facts
Exotic Species Fact Sheets
Exotic Species Grants
Plant Identification Help
Plant Identification Guides
Weed Watcher Program


More Information...
Attention Boaters: Are you an Exotic Aquatic Weed Carrier? [pdf]
Infestations Over Time
Information for Aquarium & Water Garden Enthusiasts [pdf]
Plant Pictures [pdf]
Program Report [pdf]
The Frightful Fourteen [pdf]


View PDF files with Adobe Acrobat Reader, available for free download at Adobe.com

 
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