Yes, it was at Los Islotes. I've seen the same thing in Southern Cali and at Isla San Pedro Nolasco off the coast of San Carlos, Sonora.
The line was so deeply embedded, it was difficult to tell whether it was fishing line or a piece of net. I suspect it was a piece of net.
Colleen and I spent some time picking-up trash on the Club Cantamar Beach during our stay there. We couldn't help but notice a panga loaded with monofilament net sitting on the hotel property. Anyone ever have to resist the urge to burn a boatload of net? We did.
Last year, we were picking-up trash at a beach club in San Carlos, Sonora. We were approached by a obnoxious American about what we were doing. Our conservation went like this:
He asked, "What are you doing?"
I replied, "Picking-up trash."
He asked, "Why?"
I replied, "Because it needs to be done. Do you want to help?"
He responded, "Hell no! Why would I help you pick-up trash? This isn't even my f#*king country! You're a real dumba$$ for wasting your time doing this. This beach will be trashed again in a couple of days."
I replied, "Well, it'll be clean for a day or two? Opinions about what I am vary."
I returned to picking up trash and he returned to drinking his beer.
I guess it helps if we do what we can do. Maybe picking up the garbage we find will help reduce the impact it has on the critters that live in the ocean.
-AZTinman