Lookout Slough Restoration will be the Delta’s Largest Yet

Delta Smelt Editor's Picks



Vogel Island after breaching during first filling. Photo: EIP/Bill Arnerich
21
Mar

Lookout Slough Restoration will be the Delta’s Largest Yet

When the restoration of Lookout Slough is complete, Lookout Slough will be no more. Created to provide water for a century-old duck-hunting club, the human-made canal will be filled in as part of a $119 million, 3,400-acre tidal wetlands restoration, the largest ever in the Sacramento-San Joaquin Delta. “Drought and climate change have elevated the importance of these types of multi-benefit projects,” said Karla Nemeth, director of the California Department of Water Resources, when the project broke ground last June. “This project will reduce flood risk for communities in the Central Valley and create much-needed habitat for Delta smelt and other endangered and threatened fish species.” By their expected completion in late 2024, the new tidal wetlands will replace former...
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15
Feb

Hatchery Delta Smelt Released to Wild

On a mild day between rainstorms in mid-December, wildlife biologists outfitted in rubber boots and orange lifejackets load drum after drum of precious cargo onto a small boat docked in Rio Vista, a town on the Sacramento River in the Sacramento-San Joaquin Delta. There is little fanfare but the occasion is nonetheless momentous. The shiny silver drums contain thousands of Delta smelt — finger-size imperiled fish unique to the Delta — that were raised in a conservation hatchery. Today marks the inaugural release of captive smelt into the cold, murky waters of their native home. “For the first time, we’re seeing if it’s possible for hatchery-raised Delta smelt to be released into the wild, survive, and successfully reproduce,” says Katherine...
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17
Jun

Brinkmanship for Frail Smelt

Delta smelt had a bad year in 2017. Although scientists are still analyzing the data, the message seems to be that strong freshwater flows alone are not sufficient to allow the population to increase. The resulting sense of urgency has led fish biologists to consider how cultured smelt, raised in hatcheries, could be used to supplement the wild population.
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15
Dec

Options for Orphan Species

Off a bustling Delta highway, next door to a branch of the California Aqueduct, sprawls a tidy collection of shipping containers, humming pumps, and cylindrical tanks. This resolutely artificial site is devoted to preserving a disappearing piece of natural California: the Delta smelt. “Our fish are a refuge population,” says Tien-Chieh Hung...
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05
Jun

No Scapefish in Drought Wars

According to the Biblical book of Leviticus, the ancient Israelites designated a goat to bear the weight of their sins. Nowadays, the scapegoat is not required to be a goat. When it comes to assessing blame for the worsening California drought, a scapefish will suffice. Some media outlets, notably the Wall Street Journal in a recent op-ed piece, point to the hapless Delta smelt as a culprit in the state’s water crisis, as well as a prime example of the iniquities of the federal Endangered Species Act.
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