I am not the one who "manages" our little 8 acre pond in Houston, TX.
They've been putting dye in for 20 or more years to eliminate the weed growth. They added White Amur Carp to eliminate weed growth. There is no weed growth, with the exception of something ( that I don't know the name of) that grows, on the top, in the most shallow corners of this 8 foot deep; spring fed; clear water lake. They spray something on that growth and it disappears.
No one cares about the fish population since it is the rare soul who fishes there, other than myself. The LM bass and panfish population appears to be healthy and there is natural reproduction. They added some catfish 8 year ago, and those buggers are twenty + inches long. The bass have been getting a bit bigger recently. They appear healthy, but pretty stupid, since I can catch a half dozen 1 to 1 1/2 lbrs most anytime I care to throw a worm along the shoreline...under the overhanging pine trees.
I forwarded the web site and article on to the "powers that be".
I said that I would be removing some smaller bass each time I fish it when I return to Texas in October.
The lake is surrounded by personal residences, with no other public access, and probably gets a fair runoff of nitrogen from the yards that encircle the whole thing.
regards, Rich