This dataset contains Round Goby (Neogobius melanostomus) capture data from surveys conducted on parts of the Champlain Canal and upper Hudson River, and adjacent areas, in New York during 2022, 2023, and 2024. The data are in two files: the first (InvasionFrontGoby_SiteData.csv) contains site location information, and the second (InvasionFrontGoby_SurveyData.csv) contains the number of Round Goby captured, water temperature, and specific conductance data from standardized electrofishing surveys.