Dr Francis and Mr Tindale plan to tag a number of hammerheads in the coming year to determine whether they are resident or migratory, and what they do.
Since being tagged Orokawa had crossed the outer Bay of Islands and travelled around the north side of the Purerua Peninsula.
"He is moving around a lot but not going far," Dr Francis said.
"This is the first time detailed information on hammerhead shark movements has been obtained in New Zealand waters."
Despite being common in northern New Zealand waters, hammerheads were rarely seen. Dr Francis is now asking fishers to be on the lookout for Orokawa, and if they catch him, to release him as soon as possible. If he was found dead, the tag on his dorsal fin should be removed and returned to Dr Francis at NIWA.
Orokawa, named after Mr Tindale's boat (Calm Seas), is carrying a SPOT tag that transmits messages to orbiting satellites whenever the dorsal fin, and the tag's aerial, break the surface of the water.