Protect Your Maryland Waters — Stop the Spread of Aquatic Invasives!

Non-native invasive species can aggressively colonize our waters and push out native populations. This has negative impacts on water resources, fisheries, habitat, recreation, and commerce. Here are a few simple steps you can take to prevent the spread of these harmful species in your waters.

  • Remove aquatic plants, debris, and mud from boat, motor, trailer, and fishing equipment before launching and after take out; place in trash.
  • Never Release unwanted aquatic pets or dump aquaria into or near Maryland waters. Destroy any plants and humanely destroy aquatic animals.
  • Drain water onto the ground from boat motors, live wells, bilge, bait buckets and coolers after use and before accessing another water body.
  • Dispose of unused bait far from water or in trash.
  • Rinse boat, motor, trailer, live wells, bait buckets, coolers, SCUBA gear, waders, and boots with hot or high pressure water.

Call 1-877-620-8DNR if you find a suspected invasive species. Keep and freeze any specimens and take lots of photos! For additional information, visit

Maryland Department of Natural Resources laws and regulations prohibit releasing invasive plant and animal species into the non-tidal waters of the State.

All information provided by Maryland DNR
Natural Resources Police | Safety Education Section | 305 Marine Academy Drive, Suite 1 | Stevensville, MD 21666
410-643-8502 | Toll Free 877-620-8367 | DNR.MARYLAND.GOV

Stop the Aquatic Invasion

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