More specifically, world per capita apparent fish consumption has been increasing steadily, from 9.0 kg in 1961 to 20.3 kg in 2017. In tandem with the growing population, per capita food consumption has been rising in the last few decades. The world population in 2022 is around 7.9 billion and is projected to increase to 8.6 billion in 2030 and 9.8 billion in 2050. Sustainable aquaculture, in this particular case, the farming of pompano, is put forward as a solution to the tragedy of the commons of the pomfrets. Consuming pompano which is around one-sixth the price of Chinese pomfret and around one-third the price of silver pomfret would also be economically advantageous for the consumer. Greater consumption of the farmed pompano would reduce the fishing pressure on the over-exploited pomfrets and would give their stressed wild populations time to recover. Price movements reflected the unreliable supply from wild harvest of the pomfrets and the steady supply of pompano from fish farming. Daily wholesale and retail prices of Pampus chinensis (Chinese pomfret) and Pampus argenteus (silver or white pomfret) surveyed for one year indicated high volatility while those for Trachinotus blochii (pompano) remained stable. Fish landing in 2019 was only half that in 1977 as a result of overfishing, a tragedy of the commons. Total weight of fish captured and traded through the Fish Marketing Organization in Hong Kong from 1947 to 2019 showed a decreasing trend from mid-1970's onwards.
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