[bjornbsm]

As it is in Norway this is an ongoing debate - where the smaller fishing vessels have been exempt from having the mandatory AIS equipment, citing privacy as some of the reasons. In the government portal for showing AIS data they do not show data of ships that is below 45m length to preserve their privacy. However larger fishing vessels have large crews depending on the mode of fishing, so it becomes less a case of tracking single persons (and maybe in the fishermen more a case of tracking commercial competitors).