I could not open the link, but think I know what you are talking about. The wired areas go back many years. The idea was that stocked trout would be put there and allowed to slowly spread out thru the stream above and below the wires. This would supposedly stretch out the length of time before all the hatchery trout were removed. From what I have been told, it wasn’t very successful, but, like many ideas based on theory and never backed up by facts, it just kept going and going. I’m glad it’s gone.