I actually have to disagree.  I think the big bass fishery is
sustainable at San Pablo for a few reasons.  I've been fishing
San pablo for 5 years now, and the catch rate of bass has not
significantly decreased.  I think the reason the lake is top
heavy on bass is because San Pablo has one of the largest
stocking rates for trout and catfish.  The bass continually
feed on the trout and grow large at an astonishing pace. 
Furthermore, I don't think that many people keep bass at the
lake.  The main reason is because the lake is contaminated
with mercury, and most people who fish there know that eating
bass equates to eating mercury.  They are usually after the
trout and catfish which are stocked regularly and therefore
less likely to be contaminated.  Having said all of this, I
agree that something should be done about the trout fisherman
who catches a trophy bass on powerbait and then mounts it! 
I've never understood mounting fish; not only does the fish
give up it's life, but it's not even eaten!  WTF???