Information on piranhas in the US can be found at
http://nas.er.usgs.gov/queries/SpFac...?speciesID=429
http://nas.er.usgs.gov/queries/spCol...te=&HUCNumber=
http://nas.er.usgs.gov/queries/SpFac...?speciesID=431

Tim Lysyk
timlysyk at telus dot net