I started in the tracking business in the 1980s when my group pioneered the use of small research vessels and acoustic 'pinger' tags to actively track the movements of yellowfin and bigeye tuna around FADs.  It became obvious that these techniques could easily be transferred to elucidating the movements of sharks. This lead to launching the HIMB Shark Research Group. Since that time we have expanded our 'toolbox' to include passive acoustic tracking and satellite-linked transmitters with ever-increasing levels of sophistication. I am convinced that this trend in tracking technology will continue to advance.