When Great White sharks were recently spotted off of Chatham, Mass., scientists used the opportunity to tag the huge swimmers with electronic tags that use satellite technology to record their travels. The tags are known as PAT (pop-up archival transmitting) tags that attach to the dorsal fin of the shark and record its actions via a the Argos research satellite network. According to researchers, PAT tags do not have to be recovered. Rather, after a predetermined time, they break away from the fish and float to the surface, and then transmit data to Argos satellites.
Republished with permission from Network World (view original version)