Dozens of popular fish types, including grouper and barracuda, live near reefs. They accumulate the toxic chemical in their bodies from eating smaller fish that graze on the poisonous algae. When oceans are warmed by the greenhouse effect and fouled by toxic runoff, coral reefs are damaged and poison algae thrives, scientists say.
Experts estimate that up to 50,000 people worldwide suffer ciguatera poisoning each year.
Hong Kong has refused to enact mandatory measures to prevent ciguatera despite increased outbreaks. It argues that educating consumers and traders is the answer, rejecting calls to crack down on traders or ban fish from suspect areas.
"Given the fact we eat so much seafood in Hong Kong, this should be one of the priorities in protecting the population," Sadovy said.
Source : wilmingtonstar.com
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