The "key" word with all this is conservation. Unfortunately, there is no way we can go back in history to restore what used to be here on this planet. It is too bad that all people on this planet do not understand the importance of that word! You and I do!! I am convinced that fishes understand more about the importance of conservation than we stupid humans do. I know from some of my early research efforts that many species of fishes produce underwater sounds but, we don't know what they are saying to each other and we don't know what those sounds mean. Therefore, we become their voices for their protection, and I think our voices need to get louder.
Dr. Walter R. Courtenay, Jr., Ph.D., Research Fishery Biologist, USGS Florida Integrated Science Centers, Florida, USA