I am not an accomplished fisherman, but since this is for a survival situation, I'd be inclined to pack the same tackle for both settings. Even in a salt water survival situation, you will probably be fishing in relatively still water rather than surf, and the fish you will most likely catch will be similar in size to what you'd catch back home, right?

For what it's worth, my fishing kit is stored in a single 35 mm film container. It contains a sewing bobbin with 20 lb line, a half-inch bobber and 3 tiny zip-lock bags. One of the zip-lock bags contains a half dozen split shot weights, another contains a half dozen swivels, and the other one contains a half dozen hooks. The hooks are about the size that you might use for catching bass. About #4, if memory serves. They'll be good for catching anything that I can hang onto, and can also be used for snaring birds, if need be.