Measures to prevent illicit fishing of Mediterranean bluefin tuna have been strengthened at the annual meeting of governments involved in the industry.
The International Commission for the Conservation of Atlantic Tunas (Iccat) decided to implement an electronic system for recording bluefin catches.
Research shows catches have been far higher than skippers have declared. The meeting, in Turkey, also gave extra protection to the silky shark, whose numbers are falling because of fishing.
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