"Entire species of marine life will never be seen in the Anthropocene (the Age of Man), let alone tasted, if we do not curb our insatiable voracity for fish. Last year, global fish consumption hit a record high of 17 kg (37 pounds) per person per year, even though global fish stocks have continued to decline. On average, people eat four times as much fish now than they did in 1950."
This news report is consistent with many other studies I have seen of this issue since the 1980s. The Grand Banks cod fishery
http://www.sjsu.edu/faculty/watkins/grandbanks.htm
which seemed inexhaustible as recently as my own young adulthood, has collapsed. Many species of ocean-going fish have largely disappeared from the human diet in many countries, not because people no longer like those varieties of fish, but because those varieties of fish are no longer readily available.