We spotted Mackerel by watching sardine schools on the surface of the water. They are voracious predators, who are eaten by bigger predators a step up the food chain. Including the pesky human. Very handsome 9 inch fish.
I'm trying to think of something, besides pecans, that I walk around eating right off the landscape. Lots of deer, of course, but that requires a little doing. In Maine we munched beach grass, clams, lobsters, and Mackeral with minimal processing and effort. Very direct and we hardly scratched the surface.
Eyed a lot of colorful mushrooms on the trail. I know zip about mushrooms, but I ought to.