Asda is trialling more than 30,000 circular fishing hooks in Sri Lanka in a bid to stop endangered turtles becoming accidentally snagged on traditional lines.

The circular hooks replace traditional J-shaped hooks that snag turtles or can be swallowed by them. If the trial is successful Asda will work with Young's Seafood to investigate ways of making more hooks available.

“The new circle shaped hooks are much less likely to be swallowed by turtles and are easier to unhook if they become snagged - so we are confident this trial will be a success,” said Dr Chris Brown, head of sustainable sourcing at Asda.