Sard et al,
Netting is very cheap compared to cyanide use by a factor of 20:1! Unlike netting material, Cyanide needs to be purchased every trip to Manila.
Sell the fish and bring back a few kilos of cyanide every single time! Over the cost of a year you're looking at 50 kilos plus of cyanide per diver per year. Juxtaposed to the cost of netting...the cost of netting is negligible. Its just that the netting is a one shot purchase...as they can last quite some time, even a year.
Add to the equation the superior catches of fish that netting brings and you really have a more efficient, cheaper way to catch fish that last longer and die less. These are the reasons divers convert to nets. Not because the some Americans think cyanide is bad.
If cyanide were as efficient as many Americans figure it to be, it would be much more difficult to get divers to convert. There no problem in converting fisherman. They're easy to train if you know what you're doing. If you don't know what you're doing they'll laugh at you
The problem issues that need solving are strictly associated with funding, turf, ego, politics and administration of training programs. Training NGOs and so called reform groups is much more difficult then training divers.
Sincerely, Steve