Forgive my ignorance, but something about this deep reef/commercial
fisheries business doesn't make much sense to me.  How does one trawl over a
reef??  I would think this would be, at best, extremely destructive to
trawling gear, if not downright impossible?  I am not surprised to hear that
commercial fishing vessels are trawling in ever deeper waters, as fish
populations in shallow water become reduced.  But wouldn't they select
relatively flat bottoms, far away from reefs?

Paul M.