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Can We Feed The World With Farmed Fish?

Photo: Tor-Eddie Fossbakk/ACG

For years, scientists and activists have sounded the alarm that humans’ appetite for seafood is outpacing what fishermen can sustainably catch.

But new research suggests there is space on the open ocean for farming essentially all the seafood humans can eat. A team of scientists led by Rebecca Gentry, of the University of California, Santa Barbara, found that widescale aquaculture utilizing much of the ocean’s coastal waters could outproduce the global demand for seafood by a staggering 100 times.

Their paper, published Monday in the journal Nature Ecology & Evolution, could have significant implications for a planet whose human population is projected to reach 10 billion by 2050. Nearly every coastal country has the potential to meet its own domestic demand for seafood, “typically using only a minute fraction of its ocean territory,” write the authors.

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