To Save Its Salmon, California Calls in the Fish Matchmaker

On a frigid morning in a small metal-sided building, a team of specialists prepared to orchestrate an elaborate breeding routine. The work would be wet and messy, so they wore waders. Their tools included egg trays and a rubber mallet, which they used to brain a fertile female coho salmon, now hanging dead on a hook. Diana Chesney, a biologist, studied a piece of paper with a matrix of numbers, each one denoting a male salmon and potential match for the female coho. “This is the bible,” she said of the matrix. “It’s what Carlos says.” Read the article here 12:57

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