yeah, it is pretty crazy how we often fail to notice the value of things for far too long.
I've been reading some of the stuff from the early 1800s as well, they were called "doree" and in some old fishing records they never distinguished between them and suckers. Either discarded, given away, or fed to the dogs. Even modern day we still regard suckers as trash fish.
Lake Sturgeon prior to 1850 were considered a nuisance.They would destroy nets when they got entangled, so people typically didn't like them, although they did use them for food, fuel, and the stomache lining (isinglass) for a number of things. Now you aren't even allowed to fish for them here, because they were so valuable, we almost wiped them out.