News FocusFisheries

The Secret Lives of Ocean Fish

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Science  15 Jan 2010:
Vol. 327, Issue 5963, pp. 264
DOI: 10.1126/science.327.5963.264

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It's easy to monitor the health of stocks of salmon because salmon spawn in small, discrete, and accessible freshwater bodies. Tracking fish in the ocean is a little tougher. But many scientists argue that ocean fish such as cod segregate themselves into distinct environments, as salmon do—and thrive or struggle for the same reasons.