In 1883 Thomas Huxley convinced the public and fellow scientists that fish stocks could never be over-exploited because there are so many fish and they reproduce so quickly. Perhaps he didn’t estimate that the world’s human population would now be nearing 8 billion people and that around 50% of world fisheries are already fully exploited with 32% being over exploited. Given continued population growth it is necessary to produce an additional 40% of protein from the ocean by 2