Quote Originally Posted by wicklundrh View Post
Lesson I learned from a biologist and have spoke of on here before....

In the morning as the sun begins to come up, fish will begin to go to deeper water. Part of it is to find shade or relief from the sun and warming waters. More importantly though, they go deeper simply because the plankton and zoo plankton move deeper when the sun comes up. In the evening, it is the reverse as the plankton begin to rise in the water column. This is the reason fish tend to feed down in the morning and up in the evening. Certain fish are less likely to bite at night because their eyes are not designed to see well at night.
I have heard the same thing in regards to smelt fishing.