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

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  • Chesapeake Channa (Northern Snakehead) Could Spawn More than Once a Year in Upper Bay, Maryland DNR Study Finds

    • Sep 18, 2024

    • Maryland Department of Natural Resources.

    • A study conducted by Maryland Department of Natural Resources Biologist Dr. Joseph Love illuminates one of the biological factors that could be contributing to Chesapeake Channa’s efficient spread through Maryland’s waters. The study, published in the July 2024 edition of Northeastern Naturalist, found that the majority of female Chesapeake Channa, also known as northern snakehead, collected from the upper Chesapeake Bay carried eggs in two distinct sizes, suggesting those fish could spawn twice a year.

  • Noxious Weeds - Solanum viarum

    • Florida Department of Agriculture and Consumer Services. Division of Plant Industry.

  • Quagga and Zebra Mussels

    • California Department of Fish and Game.