Oceans can feed the human race

Oceans could become a source of more human food if steps are taken to expand and improve marine aquaculture, says a new study.

As the world's population continues to grow, lack of fresh water and space mean that agriculture is unlikely to meet food demand, says Carlos M Duarte of the University of the Balearic Islands, (UBI) Spain, and his seven co-authors.

Fishery catches have been declining globally for two decades, and although conservation measures and a shift in consumption patterns could allow some recovery, marine aquaculture holds more potential for sustained growth.

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