Re: Doing our part
Aerobic metabolism (requires oxygen) is much more efficient than anaerobic (does not require oxygen). So when oxygen in the blood drops below a certain level, metabolism switches to anaerobic. The end product of anaerobic metabolism is lactic acid and too much creates acidosis (too low a pH).
Taking a fish out of the water will also kill it, especially as it becomes larger. The vertebrae are not designed to support weight as they are in land animals. Holding a large fish under the head and the tail causes the body to sag and will most likely cause a "broken back" or at least damage the spine.
Alaska, I believe, requires you to keep any fish that is removed from the water.
Is that correct, Ard?