Which species were present in the Quetico during the last Ice Age? Whichever ones were there then are the only native species. Which term applies to "introduced by humans into ecological zones they would otherwise not be present"? Just looking for a little clarity on this whole invasive/non-native issue. I think moving species to a different continent is categorically different from moving fish over a couple of lakes. Smallmouth from Quetico lakes are tasty! Don't you aspire to tell your special someone "I caught you a delicious Bass!" Or are we just a bunch of old farts here.
Jon