![Quagga mussels are usually smaller than a dime. Picture showing mussel about one-half inch in length.](/-/media/DWR-Images/Other/quagga.jpg?mw=200&hash=49126D5F865C31681D3E4DA4622CB1D5)
As boating season kicks off, DWR, California State Parks’ Division of Boating and Waterways (DBW), and California Department of Fish and Wildlife (CDFW) urge boaters to always remember to clean, drain, and dry their boats before entering and leaving lakes, rivers, and other waterways to help prevent the spread of quagga or zebra mussels.