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.