I think you have your answer judging by the response VJ.
And to quote a line from the link .. " It's a difficult idea to convey to the average person who might not understand the ocean ecosystem , but Pepin likens it it to walking into a grocery store and instead of seeing the shelves full, they're only half full"
The ocean is a fucking big place , and I think Pierre needs to take his probably prematurely balding scalp , and his less than salt encrusted big toe out of it.