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November 27, 2019

  

Oceans could provide six-fold increase in food than today: report

 


The ocean could provide over six times more food than it does today with improved management and technological innovation, scientists said in a report released at a symposium on fisheries hosted by the U.N. Food and Agriculture Organization in Rome last week, Reuters reported.

 

They estimated the oceans could provide more than two thirds of the animal protein that U.N. food experts predict will be needed to feed the world in future. Fish currently accounts for only about a fifth of animal protein consumed.

 

Cultivating food from the ocean generally has a lower impact on the climate than land-based agriculture, and is not limited by the same land and water constraints, the scientists added.

 

"The ocean has great, untapped potential to help feed the world in the coming decades, and this resource can be realised with a lower environmental footprint than many other food sources," said lead author Christopher Costello.

 

"If we make rapid and far-reaching changes in the way we manage ocean-based industries while nurturing the health of its ecosystems, we can bolster our long-term food security and the livelihoods of millions of people."

 

The report comes at a time of growing concern about over-fishing caused by a combination of factors including illegal fishing, fishing subsidies, the use of the wrong fishing gear and environmental degradation which is damaging nursery grounds.

 

With reforms, the scientists said the fishing industry could boost catches by 20% compared to today, and by up to 40% compared to projected future catches.

 

They however suggested the greatest potential gains lay in expanding the cultivation of bivalves like mussels, scallops and clams, which feed off organic matter in their environment.

 

This could also help improve water quality and create habitats for wild fisheries.

 

The scientists also called for more research into the potential of seaweed as a food source, particularly as a replacement for fish-based ingredients in animal feed.

 

Various studies have suggested that certain seaweeds may cut down methane emissions from livestock which are a major contributor to greenhouse gas emissions.

 

The report is the result of an initiative spearheaded by 14 government heads named the High Level Panel for a Sustainable Ocean Economy, which aims to raise the ocean to the top of global agendas.

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