Not enough information visible on line.
Buying this product on line, it is not possible to see whether or not it is ethically sourced , whether it has been caught with a rod and pole or a drag net. So no points for that Tesco.
Well done tesco!
Actually prefer the Tesco variety over the name brand tins. Has very little brine in the tin, so your not pouring half the tin away down the drain, unlike the other brands as well. Also a lot cheaper then the others as well, so I honestly recommend this product to anyone.