https://news.mongabay.com/2020/10/new-evidence-suggests-chin...
https://www.abc.net.au/news/2020-12-19/how-china-is-plunderi...
https://time.com/6328528/investigation-chinese-fishing-fleet...
Five years ago, China was assessed to have 17,000.
https://www.weforum.org/stories/2017/08/how-data-can-heal-ou...
We can do this for, say, all the airfields in Russia, today. But the world is a much bigger place.
As laser communications equipment becomes more standardized and the LEO comms and LEO remote sensing constellations continue to grow, this will slowly expand in scope. But tracking and deconfliction of moving objects is just an inherently difficult thing to do with any confidence; It wouldn't be feasible at all without various AI algorithms. There are far lower hanging fruit as yet unpicked.
Is there a single country in Asia that doesn't practice distant water fishing?
Regulation. Chinese boats fish in ways we block our own boats from. Those exports thus represent a regulatory workaround, victim the oceans, and a tool with which buyers can demand reciprocal regulation.