I was using the wrong search engine. My preferred duckduckgo, yielded nothing. Google found some links but not many maps except for Maryland. I was surprised to find out that this commercial method has been heavily deployed since the 1800’s.
https://journals.sagepub.com/doi/full/10.1177/0843871420974064
Years ago when I was shore fishing at Carolina Beach I met an old timer who had a strong opinion the Carolinas depleted fishing was primarily due to Chinese overfishing. He explained that they were using fishing nets that were at least 7 miles wide pulled along by several fishing ships each. And that they were skirting North Carolina’s state waters. I’m sure that’s a reason that we’ve all heard before. But it’s known now that the Chinese are doing very much the same all around the South Pacific.