October 28, 2013

Fish Down, Invasions Up, Flooding Soon

Whether you’re a fat salmon or a skinny smelt, life in the watershed of the San Francisco Estuary remains far from “natural.” Dams and levees block Estuary fish, alien clams compete for fish food, invasive weeds clog habitats, and exotic predators threaten life and fin. A few native species are holding their own, but others, like Delta smelt, have declined to such a degree that there are too few to count. Clearly, we have failed to stem the decline and ensure the recovery of native fish as we set out to do twenty years ago.
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