Experts say almost all species in the Mediterranean are still overfished despite decades of seeing stocks dwindle — and that is forcing the European Union to consider creative solutions like using drones or space technology to catch fraudulent fishermen.

EU Fisheries chief Karmenu Vella said Tuesday some stocks "are on the verge of depletion. All in all, 93 percent of the fish stocks assessed are overexploited." On top of that, he said one in two fish caught in the Mediterranean are not even recorded with authorities — raising the specter of even worse depletion.

The 28-nation bloc has a new fish policy that will begin in 2020 to eliminate illegal fishing but Vella said he was considering using drones to track suspicious vessels and catch them in the act.