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Hatchery fish mask the decline of wild salmon populations

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Hatchery fish mask the decline of wild salmon populations

Post Number:#1  Postby Marine News » Tue Feb 14, 2012 8:02 am

Hatchery fish mask the decline of wild salmon populations
9 February 2012, 7:02 am

Scientists have found that only about ten percent of the fall-run Chinook salmon spawning in California's Mokelumne River are naturally produced wild salmon. A massive influx of hatchery-raised fish that return to spawn in the wild is masking the fact that too few wild fish are returning to sustain a natural population in the river.

Source: ScienceDaily: Marine Biology News
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