Fish spawn here for months sometimes. *Also, they spawn at a variety of
depths, and even in very small breaks from the current in the main river
sometimes. In the same year I have pulled a fish off a bed by the end of
January, and again in May.
It is not unusual for bass to spawn here from February thru May, but
the vast majority spawn in April each year, probably 80 percent and
most of them on the full moon. So most are basically on the same
pattern.
Ronnie
http://fishing.about.com