Method
The fishermen dive into the sea usually without artificial breathing aids, although some use illegal and highly dangerous apparatus (commonly garden hose surface-fed from the type of air compressor commonly used to power jackhammers). When they reach the coral reefs, they spray the poison between the individual layers, after which the yield is collected. Edible fish, of which a number are sold for general consumption, are first placed for ten to fourteen days in fresh water for "rinsing". Recent studies have shown that the combination of cyanide use and stress of post capture handling results in mortality of up to 75% of the organisms within less than 48 hours of capture. With such high mortality numbers, a greater number of fish must be caught in order to supplement post catch death.
Cases have been reported of fishermen dumping drums of concentrated cyanide in places where fishing is difficult or economic times are hard. Such high concentrations normally kill most of the haul, but in these cases the objective is no longer to catch live fish, but to catch the largest amount possible.
Read more about this topic: Cyanide Fishing
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