Cyli wrote:

Or to move native species from one environment into another where they
haven't previously existed.

Nonetheless, people do both all too often. Fishermen call them
'bucket biologists' in a sneering tone of voice if the species
interferes with the target species of the fishermen.

Of course, most of those intentional introductions are done by fishermen.
Around here it's because they'd rather fish for Bass than our native
species.
--
derek
- Unless otherwise noted, I speak for myself, not rec.ponds.moderated
moderators.