fish populations fish populations

Fish market workers in Jersey City, N.J., prepare a bluefin tuna for shipment to some of New York's top sushi restaurants. Emmanuel Dunand/AFP/Getty Images hide caption

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Emmanuel Dunand/AFP/Getty Images

An orange clownfish, Amphiprion percula, lives in symbiosis with a host anemone on the Great Barrier Reef. Alejandro Usobiaga/Scientific Reports hide caption

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Alejandro Usobiaga/Scientific Reports

Pacific Or Bust: Fingerling Chinook salmon are dumped into a holding pen Tuesday as they are transferred from a truck into the Sacramento River in Rio Vista, Calif. From here, they'll be towed downstream for a bit, then make their own way out to the Pacific Ocean. Justin Sullivan/Getty Images hide caption

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Justin Sullivan/Getty Images

Truckin': Salmon Take A Long, Strange Trip To The Pacific Ocean

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Bright red sockeye salmon swim up the Fraser River to the stream where they were hatched. Current Biology, Putman et al. hide caption

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Current Biology, Putman et al.