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15 wrz 2014 · Federal Judge Oliver Wanger overturned a federal scientific study that aimed to protect Delta smelt in the Sacramento-San Joaquin Delta. In 2005, the U.S. Fish and Wildlife Service said that Delta export pumping operations would not jeopardize the continued existence of the fish.
7 wrz 2007 · U.S. District Court Judge Oliver Wanger ruled to restrict water deliveries from the California Delta’s massive export pumps to the Bay Area, Central Valley and Southern California to protect the fish.
1 wrz 2007 · A federal judge late Friday ordered protective measures for a tiny endangered fish in the Sacramento-San Joaquin River Delta, a mandate state water officials warned could cut Northern California...
20 lip 2017 · The delta smelt (Hypomesus transpacificus), a small semi-anadromous fish endemic to the SFE and considered an indicator species, is close to extinction in the wild.
10 wrz 2021 · The results of this analysis can inform resource management decisions and contribute to a comprehensive model that can meaningfully guide efforts to recover the imperiled delta smelt. View full...
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.
Operations of the water project pumps are regulated to comply with endangered species law through “biological opinions” issued by federal regulatory agencies. In 2007, a federal court found that existing biological opinions written to protect Delta smelt and several runs of anadromous fish were inadequate.
