There is a very ugly little fish called the Gobi ... that thing is now loose all over the lakes. It too was from somewhere in Asia. They are only about 3 inches long ... the Bass love them and that is fine, but if the lake trout eat them, they will get sick and some will die because they carry very high levels of a bacteria that the trout can't handle. We put a lot of critter in the lake via ships and their ballast tanks. I wish it was better enforced. When I was doing some still fishing this summer, about every other cast came up with a Gobi. Ugly fish - the thing looks like a bug .. The DEC says don't put them back if you catch them, toss them on shore which is what I do sadly.