Visualize a funnel with the end that the liquid comes out pointing upstream. That is what we have created. At the discharge of the funnel we have LED lights on one side, and the camera on the other side. Nothing can exit the funnel without passing between the camera and the LED lights.
If you see nothing going by, then nothing is going by. The camera does not lie.
The fish counts posted might not be accurate at this time as we are continuing to work out the kinks.
But I think we are light years ahead of where we were even a week ago.........