Bass movements and moods (as well as other fish and game) have been related to changes in the Earth-Moon-Sun orientation (and therefore energy) for much of human history. Even early hunters recognized different animal movements during different Moon phases and adjusted accordingly.
I even have to admit, when I took the time to check, bass feeding activities often seemed to coincide with major or minor solunar periods.
Following is a version of a Solunar Table for April 2010 (Astro Table) which was derived based using Moon and Sun phase information (it also links to current Bassmaster page):
Meaning of the data in the columns: