"invasive no ""whiskers"" and the protruding eyes can be seen (slightly), this separates it from the similar (and also not native) Tubenose Goby. Google images to see these features http://wildlife.ohiodnr.gov/species-and-habitats/species-guide-index/fish/round-goby http://wildlife.ohiodnr.gov/species-and-habitats/species-guide-index/fish/tubenose-goby"