By Richard Black, Environment correspondent, BBC News
The wildlife trade monitoring network Traffic and the Pew Environment Group say most of the main shark fishing nations do not manage fisheries well.
Ten years ago, governments agreed a global plan to conserve sharks.
An estimated 100 million sharks are killed each year, with nearly a third of species at risk of extinction.
Many fisheries target the fins for use in shark fin soup; and a number of countries, including the US, have recently passed measures aimed at regulating the trade.
Neither of the two countries catching the most sharks – Indonesia and India – has yet finalised national plans of action for protecting sharks.
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