I think the value of fish as a survival food depends on where you are. Bass and other non-oily fish have about 125 calories per 3.5 ounces, compared with 250 calories for grouse meat, and 400 for venison. There are only a few options in the boreal forest for much of the year unless you have a gun and ammo. Nuts and berries abound in the fall, but there's not much around after the frost, or in winter or spring. Some edible green plants have nutrients, but little food energy. Mushrooms although tasty, have no food energy. There are streams and lakes everywhere up here, and a small fishing kit, accompanied by a 'frog spear' head in your kit will insure that you won't starve. A frog spearhead is small and only weighs a few ounces, but lashed to a long pole it will bring unwilling fish to your campfire. Snares are only marginally effective, and you will probably catch a skunk. The most common slow-moving source of protein, the nightcrawler, is low on my list of delectible morsels.