If we had to sum up tuna’s plight in one word it would be greed.
Tuna is a bit like the oil of the fishing industry. It means big money and there’s huge global demand for it, but it’s under pressure and some stocks face collapse. All of which makes big global fishing companies increasingly desperate to get their hands on what’s left.
This has led to some genuinely shocking behaviour out at sea and some profound changes in our oceans.
Below we’ve summarised the key issues, from overfishing to the use of slave labour. Beware, some of it is not easy reading.