Wildlife officials have recommended adding the longfin smelt to the state's list of endangered species.
In a report filed Tuesday, the Department of Fish and Game proposes "threatened" status for the 5-inch fish under the state Endangered Species Act, citing threats from water diversions, pollution and predation by foreign fish species. The longfin is one of nine fish species in the Sacramento-San Joaquin Delta that have declined sharply in recent years. A fall survey concluded in December found one of the smallest populations of longfin in 42 years of monitoring. Its cousin, the Delta smelt, set a new low.
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