Protecting Tennessee's Waterways


Aquatic Nuisance Species

Introducing non-native species into Tennessee waters can upset the balance of the ecosystem, harming the environment. Aquatic nuisance species, such as bighead and silver carp, Eurasian watermilfoil, hydrilla, New Zealand mudsnail, purple loosestrife, round goby, quagga mussel, and zebra mussel, are most often spread between waterways by hitching a ride on vessels and trailers. When transplanted into new waters, these organisms proliferate, displacing native species and damaging the water resource and your vessel.

To prevent spreading aquatic nuisance species:

  • Inspect your vessel, motor, live wells, and trailer, and remove any aquatic nuisance species you see before leaving the area.
  • Drain water from your boat, motor, bilge, live wells, and bait containers before leaving the area.
  • Dispose of unwanted bait and other animals or aquatic plants in the trash.
  • To remove or kill species that were not visible when leaving the area, either wash your boat and equipment with hot water or air-dry them for at least five days.
hydrilla
To prevent spreading aquatic nuisance species, inspect your trailer and remove any plants and animals you see before leaving the area.

Outboard Emissions

New federal emission standards for marine engines are being phased in gradually. Many manufacturers are meeting these requirements now with clean-burning engines already available. The new technology provides easier starting, faster acceleration, quicker throttle response, improved fuel economy, and reduction of fumes and noise.