Here is the link that should lead you to a video of salmonid parr feeding. I think I took this clip last Saturday evening but, as I mentioned in my last post, I walked out yesterday evening and filmed similar activity in the same pool.
Gradually, the water level will creep up to cover this ground, but over how long a period of time? What will seed into the silts? In the meantime it will be interesting to see what walks about and leaves its footmarks.