I’ve tried to do some quick math. The “No Fishing” zone in the Gulf of Mexico is described as “about 20% of US waters in the Gulf”. I can’t find exactly how much that is, but, the entire Gulf is 1.5 million square miles. Even if the US portion of that is only half (I suspect it’s more), that means that 150,000 sq miles are off limits to fishing. For comparison, Lake Michigan is 22,400 square miles. That’s a no fishing area 6.7 times as big as Lake Michigan. I know that doesn’t seem right as I look at these maps, so help me if I’ve screwed up.