I have seen very few photos that would support this notion.
An image with one large coral (dead white) on a otherwise healthy reef would show a MO cyanide event like you describe.
To seperate our trade and the food fish handly work, researchers and reefcheckers need to provide data that would ilustrate MO trade effects.
Photos of large dead reefs can be from many origins. (But not trade fishing)
Reefs with low hard coral coverage explains little.
There should be thousands of examples where the reefs scape has been dotted with bleachings. Every single hiding point tourched white.
but that never seems to be what researchers find?
Photos like M Kirda presented two years ago from his visit to PI . also translates into little more the a few white spots on six or so corals.
Coral pred
ators do that every day. Sure , those images could have been from cyanide. small portions of a coral head with RTN is what Cyanide fishing is suppose to look like. But where are the corals that the crown of thorn starfish just ate? The coral eating Snails? Corals which have been chewed on by the countless number of coral eating fish? Bump heads?
The few corals mike found during his week long trip hardly supports the Rampant veiwpoint. Its odd that in placed with no cyanide use, like the GBR or Fiji finding large patches of dead coral is quite common.
Natural bleachings and starfish outbreaks are everywhere.
Why is something so "RAMPANT" so hard to find in the Philippines?