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  1. en.wikipedia.org › wiki › Delta_smeltDelta smelt - Wikipedia

    Hypomesus transpacificus. McAllister, 1963. The delta smelt ( Hypomesus transpacificus) is an endangered [1] slender-bodied smelt, about 5 to 7 cm (2.0 to 2.8 in) long, in the family Osmeridae. Endemic to the upper Sacramento-San Joaquin Estuary of California, it mainly inhabits the freshwater-saltwater mixing zone of the estuary, except during ...

  2. Nov 5, 2021 · Click to enlarge. The Delta Smelt is a small fish, endemic to California that only occurs in the San Francisco Estuary. The slender-bodied fish typically reaches about 60-70 mm to a maximum size of about 120 mm (Figures 1, 2 and 3). The Delta Smelt life cycle follows the four seasons—spring spawning in fresh water, summer migration/rearing in ...

  3. The U.S. Fish and Wildlife Service and other federal, state, and local agencies experimentally released captively produced Delta smelt into the Sacramento-San Joaquin River Delta to help conserve this critically imperiled fish species. The project will help inform future supplementation of the species in the wild and is part of a multi-agency collaboration to address the severe drought conditions and low numbers of Delta smelt.

  4. deltasmelt.org › about-the-speciesSave the delta smelt

    Learn about the delta smelt, a slender-bodied fish that inhabits the Sacramento-San Joaquin Delta and is an indicator of its ecosystem health. Find out its taxonomy, habitat, lifecycle, endangered status, and court protection.

  5. Apr 3, 2015 · The delta smelt is a tiny, endangered fish that lives only in the San Francisco Bay and the Sacramento-San Joaquin Delta. It faces extinction due to severe drought, water diversions, and other threats to its habitat.

    • Jane Kay
  6. Learn about the endangered Delta smelt, a native fish of the San Francisco Estuary, and the monitoring program that tracks its abundance and distribution. Find out how the program supports management decisions, scientific research and supplementation efforts.

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  8. Delta Smelt were historically found in large numbers throughout the Sacramento-San Joaquin Delta, but have since become one of the most rare fish species in the area. This is especially apparent during drought periods, when water flow and quality are diminished.

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