Great white sharks

Great white sharks have been tracked to these waters, although it is unclear whether the Auckland Islands have their own population of these sharks or whether they just visit the Subantarctic from Stewart Island. Evidence has been seen of scarring on sea lions, suggesting that they’re preyed upon by the great whites.

How would a scientist go about determining the migratory patterns of great white sharks found around the Auckland Islands?

Image acknowledgement: Michael Bogner, licensed from 123RF Ltd