It may seem a little overly paranoid, but I went to the store a couple of days ago and bought enough new fishing line to re-spool all of my reels (which have sat mostly untouched for nearly 20 years, as I'd drifted away from fishing for fun), and some new lures, bobbers, etc. And tomorrow I think I'm going to go out and do a little fishing, just to make sure I still remember how, and to make sure my gear all still works.
I don't necessarily expect to be reduced to needing to fish to feed myself, but at least I have one backup plan if all else fails. Now, note to self... go order that roll of snare wire that I meant to order months ago, and forgot...
Yep. I'm not saying one could support oneself through nothing but fishing (depending on a lot of details, of course). But I see no reason not to make that one component of a strategy for procuring food. And even if it only serves for a limited period of time (until your local fishing hole is all fished out), that may be enough time to bridge to the point where other options become available.
I think that ideally, one would use a combination of fishing, trapping, hunting, foraging for wild edibles, gardening, plus buying whatever food remains available for sale, to handle a shortage situation. Perhaps no one of those mechanisms is sufficient by itself, but the combination may be.
I don't necessarily expect to be reduced to needing to fish to feed myself, but at least I have one backup plan if all else fails. Now, note to self... go order that roll of snare wire that I meant to order months ago, and forgot...