you have to eat the skin of the fish. You have to boil them and drink the broth. then you get the fat. You also need to boil the heads, if you dont need them as bait.
Take the 3 lb block of salt, the slingbow and 9 arrows, 6 of them being 4-tined fishing arrow heads. Take the 5 qt skillet with lid, a synthetic sleeping bag, as low temp as available, the duct tape, a modfied e-tool, with 8" of saw edge, a modified Signal multi tool, by swapping out the bit driver for a file blade. Take a hammock, the snare wire, the fishing kit (as 8 big treblehooks, to be set for big cats and canines, using salted fishheads hung 4 ft high, tied to drag logs.