Did a little research myself and was astounded that Tarpon have been found as far north as Nova Scotia and Ireland! No question these fish travel the warm waters of the gulfstream. One would have to wonder if some Tarpon make the complete circle. They also now have Tarpon in a small section of the pacific where the Panama Canal enters the pacific. Juro mentioned Bluefish and I was amazed they are found in the Med as far east as Turkey and in some places in the South Pacific. There is a lot of fishing out there.