Look at what these Aussies have been up to!
Not sure what I should think ethically - should we outlaw a new method every time it becomes available? After all, we have motorboats, fish finders, tide tables, artificial scent lures, nylon line etc. etc. After thinking about his for a while, one issue I see is the drone possible coming down hitting someone in the head when fishing from shore. Not every beach is deserted like the one in the video.
Of course, you also need fish present and water clear enough to see them in. I don't think this is going to be possible in a lot of CA pacific waters.
At any rate, I though this was a neat idea, well done video and apparently worked on the first try, so I wanted to share with you guys.
G
http://www.newsweek.com/australian-fishermen-catch-giant-tuna-457294