New Iowa Bilge law

MI-nick wrote: i recently read that bluegill are considered an "invasive" species in Japan...hard to think of a more harmless fish...

This does seem a bit odd at first, but most invasive species are harmless in their own range. There is a lot of research on how and why invasive species cause so much harm. Most of it has to do with them being able to operate outside of natural processes that keep them in check in their home ranges, such as predators, competitors, or disease. They also tend to have some life history characteristics, such as large numbers of offspring, that can give them an extra boost.

So even a species like bluegill that are harmless in their native range can become a serious problem once they enter a habitat or ecosystem that 1) cannot control their numbers and 2) is easily exploited by them.

Definitely some very interesting ecology!

Haha! That thing is a novel ecosystem unto itself!