National Invasive Species Information Center
U.S. Department of Agriculture

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  • Invasive Snakehead Caught in Canton, Massachusetts

    • Sep 2, 2021

    • Massachusetts Division of Fisheries and Wildlife.

    • On August 27, an angler caught a northern snakehead from Reservoir Pond in Canton, Massachusetts. After obtaining and analyzing the specimen, MassWildlife confirmed this fish was a snakehead, an invasive species in Massachusetts. This fish was most likely released by a pet owner when it grew too large for its aquarium. Possession and liberation of snakeheads are both illegal in Massachusetts. Transferring exotic fish into local waterways can cause a host of problems, including competition with native species and spread of disease. This recent catch is the fifth confirmed snakehead documented in Massachusetts since 2002. All snakeheads found in Massachusetts were adults, and MassWildlife has found no evidence of reproduction at any of the locations where the snakeheads were caught.

      Anglers may confuse snakeheads with other native species like bowfin. Anyone who captures a fish that can be confidently identified as a snakehead should keep the fish, kill it, and report it to MassWildlife by emailing mass.wildlife@mass.gov or calling (508) 389-6300. MassWildlife encourages anglers who are less certain about the species of fish they have caught to send photos showing various angles of the fish. Under no circumstance should a suspected snakehead be transported to another location until identification is confirmed.

  • Invasive Snakehead Fish Caught in Gwinnett County (Georiga)

    • Oct 8, 2019

    • Georgia Department of Natural Resources. Wildlife Resources Division.

    • The Georgia Department of Natural Resources' Wildlife Resources Division confirmed someone found a northern snakehead in early October in a pond on private property in Gwinnett County, marking the first time the invasive fish has been found in the state. Fishermen who find a northern snakehead should take pictures, note where it was caught and then report it.

  • Invasive Species

    • Mississippi Department of Marine Resources.

  • Invasive Species

    • City of Chicago. Department of the Environment.

  • Invasive Species

    • Indiana Department of Natural Resources.

  • Invasive Species

    • Connecticut Department of Energy and Environmental Protection.

  • Invasive Species

    • Delaware Department of Natural Resources and Environmental Control. Division of Fish and Wildlife.

  • Invasive Species

    • Polk County Department of Land and Water Resources (Wisconsin).

  • Invasive Species

    • Wisconsin Department of Natural Resources.

  • Invasive Species

    • Georgia Department of Natural Resources. Wildlife Resources Division.

  • Invasive Species - Agr 3800

    • New Hampshire Code of Administrative Rules.

  • Invasive Species - Aquatic Plants

    • Idaho Department of Agriculture.

    • Includes Statewide EDRR List, Statewide Control List, and Statewide Containment List

  • Invasive Species - Bullfrog

    • Oregon Department of Fish and Wildlife.

  • Invasive Species - Chinese Mitten Crab

    • Oregon Department of Fish and Wildlife.

  • Invasive Species - Control Methods

    • Wisconsin Department of Natural Resources.

  • Invasive Species - Crayfish

    • Oregon Department of Fish and Wildlife.

  • Invasive Species - Didemnum Tunicate (Didemnum vexillum)

    • Alaska Department of Fish and Game.

  • Invasive Species - European Green Crab (Carcinus maenas)

    • Alaska Department of Fish and Game.

  • Invasive Species - Feral Swine

    • Oregon Department of Fish and Wildlife.

  • Invasive Species - Red-eared Slider

    • Oregon Department of Fish and Wildlife.