Here are some basic steps:
Learn to identify the Round Goby
Empty bait buckets, livewells and bilges prior to leaving any water body
Do not use Round Gobies as bait (it is illegal to use or have Round Goby in your possession)
Dispose of unused bait and fish waste in the garbage
Wash all boating and angling equipment prior to leaving any water body
Talk to and inform others about the impacts of the Round Goby and other aquatic invasive species
