Humans are voracious eaters of virtually anything expect themselves, but fish has been on top of the menu for a long time now.

This has now resulted to an impeding scarcity as a third of the world’s oceans are overfished.

According to a United Nations, UN report released on Monday, fish consumption is at an all-time high, raising fears over the sustainability of a key source of protein for millions around the world.

According to a report released by the Food and Agriculture Organisation, overfishing is particularly bad in parts of the developing world where many people already struggle to get enough nutritious food to eat.

“There’s too much pressure on marine resources and we need significantly more commitments from governments to improve the state of their fisheries,” said Manuel Barange, director of the FAO fisheries and aquaculture department.

“We predict that Africa might have to import fish in the future,” he told the Media, adding that shortages could lead to higher prices, disproportionately affecting the poor.

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The report said globally, the percentage of stocks fished at unsustainable levels increased to 33.1 in 2015, from 31.4 in 2013 and 10 in 1974.

Fish consumption reached an all-time high of 20.2 kg (44.5 lb) per person from 9 kg in 1961, said the report, and further rises are expected as health-conscious consumers turn to fish.

Currently, 3.2 billion people rely on fish for almost 20% of their animal protein intake.

Shakuntala Thilsted, research programme leader at international nonprofit WorldFish, was quoted in the report to have said that reducing losses and waste would go a long way towards making fisheries sustainable, with an estimated 35% of catches thrown away.

“Fish heads, fish bones are (the) parts that are most nutritious. Why aren’t we using innovative solutions to turn this into nutritious, palatable food?” she said.

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