The niangua has definitely declined. When I was in school we would go every weekend all through high school and slay the trout. After 2003, we saw a very different river,. I've been the last two years taking friends in the winter and had moderate luck. One day we caught fifteen in a snow storm. But overall btw population seems very low. Also I noticed a decrease in trout caught when sandsprings pushed in that spring up above Bennett. There used to be a big pool and always trout in it. Now canoe launch. Seems canoe revenue is taking precedents.