I guess with what we have all we can do is guess. I guess. But it depends on if the guessing is right or not? Without true 100% scientifically gathered data to examine we guess. I have made a career of guessing what will work. Sometimes those guesses blow up in my frog face like a trick cartoon cigar. You try to refine it the best you can, but with an ecosystem underwater, what can you really know for certain? At best you can get a hopeful representive sampling and guess from there. I guess it depends.
