Green turtle Nebs is still swimming under the radar after going off the grid near Tutukaka during the July storms.
Massey University PhD student Dan Godoy was tracking the turtle, whose transmitter stopped on July 8 during the recent storm while 7km from the Mimiwhangata marine reserve, north of Tutukaka.
Nebs still hasn't shown up, and while Mr Godoy feels that "he's goneburgers" from the study, he may be still alive but without the transmitter.
"In a storm event it's possible the tag's been damaged and stopped. I'm hoping he's still alive," he said.
The transmitter, fixed on to Nebs' shell with fibreglass and glue, is worth thousands of dollars. "It would also contain a lot of valuable data.