I've tickled brown trout then smoked it in a river rock fire and served it wrapped in a wild duck egg omelette with watercress salad dusted with native pepper berries.
And the equipment for that was a pan, a pocket knife and a packet of matches.
Sort a survival food your talking about?
If your survival kit contains more than a pan, a pocket knife and a packet of matches,
then I highly advise you to stay home.
American survivalists are total fucking laughing stock back in New Zealand, the shit and gear they come with.
https://en.wikipedia.org/wiki/Trout_tickling