The watch room first filters vessels it believes are fishing from others that are not. It does this by looking at, for example, which boats are in areas where fish congregate. It then tracks these boats using a series of algorithms that trigger an alert if, say, a vessel enters a marine conservation area and slows to fishing speed, or goes “dark” by turning off its identification systems. Operators can then zoom in on the vessel and request further information to find out what is going on. Satellites armed with synthetic-aperture radar can detect a vessel’s position regardless of weather conditions. This means that even if a ship has gone dark, its fishing pattern can be logged. Zigzagging, for example, suggests it is long-lining for tuna. When the weather is set fair, this radar information can be supplemented by high-resolution satellite photographs. Such images mean, for instance, that what purports to be a merchant ship can be fingered as a transshipment vessel by watching fishing boats transfer their illicit catch to it.
As powerful as the watch room is, though, its success will depend on governments, fishing authorities and industry adopting the technology and working together. Those authorities need to make sure AIS and VMS systems are not just fitted, but are used correctly and not tampered with. This should get easier as the cost of the technology falls.
Enforcing the use of an IMO identification number that stays with a ship throughout its life, even if it changes hands or country of registration, is also necessary. An exemption for fishing boats ended in 2013, but the numbering is still not universally applied. Signatories to a treaty agreed in 2009, to make ports exert stricter controls on foreign-flagged fishing vessels, also need to act. Rogue Fishers seek out ports with lax regulations to land illegal catches.
One big problem is that technology can work both ways... Analyzing data from July 2012 to August 2014 Windward (a maritime analytics company) found a mouldering culture of manipulation and deceit in the global maritime industry. They sorted the problems they uncovered into five categories all of which result in “distorting the maritime picture and with it the ability of decision makers to act on valid, reliable data.” The five major categories identified were:
1) Identity Fraud: They found that 1% of ships were transmitting false or stolen identifying marks (IMO numbers, unique numbers assigned to every vessel over a certain size). While this number might seem low, they drew the analogy to airport security, and that this was the equivalent to 1000 people travelling through an international airport using fake identification in a single day. This practice has increased by 30% in the past year.
2) Obscuring Destinations: 59% of vessels failed to report their next port of call.
3) ‘Going Dark’: This was the most common form of AI manipulation whereby a vessel simply turns off their AIS. Windward determined that over one quarter of the vessels worldwide are turning off their AIS at least 10% of the time. To ‘go dark’ operators must physically separate an AIS transmitter from its battery.
4) GPS Manipulation: Windward notes that “AIS transmitters do not provide GPS validation. Therefore, whatever positioning data is ‘fed’ into the device is transmitted as the vessel’s position, regardless of the ship’s actual position.” They recorded a dramatic 59% increase in GPS manipulation between mid- 2013 to mid-2014. Operators must physically manipulate the hardware of the AIS transmitter or physically connect the AIS to a computer and use special software to provide false GPS locations. One example given in an article in Wired noted how a vessels turned off its AIS off the south coast of Mexico, only to have its AIS signal reappear near Chile a short while later, and then in the middle of the Antarctic Continent.
5) Spoofing AIS: The AIS system can be hacked so that ‘ghost ships’ can be introduced where there are not vessels. The implications of all of these various manipulations of AIS are significant, and include threats to safety at sea, international security, undermining the ability to track vessels and monitor areas on the part of governments and other security and financial stakeholders in global maritime trade. IUU fishers are strongly incentivised to manipulate their AIS or to operate without AIS, either of which is illegal, frustrates the jobs of coast guards and law enforcements, and threatens maritime safety.
Hence, the technology to find out the "truth" has similar incentives for those not interested in the truth! As well as the issue that all this is quite costly.