Crystal Blues brings up some important points regarding AIS in their blog, svcrystalblues.blogspot.com:
Heading north around Cape Hatteras a few weeks back, we found ourselves facing a number of targets along our intended course – only some were more dangerous than others. That green target at the top right of the image (36870200) was an American aircraft carrier performing incredibly tight turns and circles – but that wasn’t the danger. Neither was the fast moving target to the left of our track (the track in black), which was the Captain Caden, a 21 meter fishing vessel out of Barnegat Bay. Read More