Originally posted by drewlowe
Do the fish gather there yearly??? Do they go just because they know they are getting fed, or is there another reason their there (for example, mating)???
It's a spillway so I think the main factor is water flow, they are kind of stuck there. I would imagine they are there yearly, I can't see a way out for them. The population is certainly thriving because of the food, so that must be why they are there. Mating must take place there too.