When I looked at the list two things stood out, LMB and Gambusia affinis. Each species has significant overlap and it made me wonder where are BG in this mix? Both BG and Gams are prey fish that co-evolved with LMB. Resistant to the predation of admittedly one of the strongest freshwater predators of prey the size of juvenile BG and smaller.

For most people I think invasiveness is a function of whether they would like more of them. Take Augie who has SMB and doesn't want BG. He might describe BG as invasive even though they are native to his neck of the woods. He might say the same of LMB if they happened to get in and squeezed out the SMB.

I guess the problem arises when not everyone wants the same thing or especially when some want something which will cause damage to the things others want. Finding agreement doesn't seem to matter long term because we have a tendency to change our minds anyway.

It isn't what we don't know that gives us trouble, it's what we know that ain't so - Will Rogers