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The World’s Fisheries Are Incredibly Intertwined, Thanks To Baby Fish

July 03, 2019 |

Yuvalr [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]

This article was originally published on Science News


“Marine fisheries are typically managed by individual nations. But the fish in those stocks often originate elsewhere, according to a computer simulation of how eggs and larvae from hundreds of fish species ride ocean currents around the world.

That finding means that many nations with economies that rely on fishing must depend on other countries to maintain important spawning grounds. The results of the simulation highlight the importance of international cooperation in sustaining the fisheries that provide millions of people with food and livelihoods, researchers report in the June 21 Science.

Oceanographer Nandini Ramesh of the University of California, Berkeley and colleagues simulated ocean currents transporting the eggs and larvae of more than 700 species of commercially harvested fish among 249 national fishing grounds. More than 90 percent of the world’s fish are caught within these marine territories, which extend a few hundred kilometers off the shores of coastal nations. The simulation accounted for when and where different species lay eggs, as well as the speeds and directions of ocean currents throughout the year…”

Read on at: Science News.

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