This just in … State, Federal Agencies Launch Integrated, Multi-Pronged Effort to Help Delta Smelt

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Strategies Aimed at Improving Survival of Endangered Fish From the California Natural Resources Agency: Under a comprehensive strategy released today, state and federal agencies will work to rapidly improve conditions for endangered Delta smelt, which are close to extinction after several extremely dry years.  The strategy represents a management shift for state and federal water and wildlife agencies, which are […]

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Delta smelt symposium, part 4: Panel discussion: What is the path forward among considerable uncertainty?

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Panel of experts share their visions and options for the future of the Delta and longfin smelt Coverage of the Delta and longfin smelt symposium, Is Extinction Inevitable?, continues It’s been a full day of presentations; conference attendees have been given the background on the decline of the Delta and longfin smelt, a long list of potential causes, and a […]

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Delta smelt symposium, part 3: The path forward: Climate change, recovery planning, and restoration

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Presenters discuss climate change, extinction, artificial propagation and stocking, and tidal marsh restoration Coverage of the Delta and longfin smelt symposium, Is Extinction Inevitable?, continues The second round of presenters provided a long list of potential causes for species decline, and conference attendees weren’t feeling very optimistic.  Is there anything we can do to preserve and restore the species?  In […]

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Delta smelt symposium, part 2: Causal links to population declines and data gaps

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Could it be water exports, predation, food web, contaminants, drought … ? Coverage of the Delta and longfin smelt symposium, Is Extinction Inevitable?, continues … The first round of presenters at the Delta smelt symposium have shown us that although we’ve learned a lot about the Delta and longfin smelt, their populations are still declining; however, the population genetics do […]

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Symposium coverage, part 1: Delta and longfin smelt: Is extinction inevitable?

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Part 1 of coverage of symposium covers what we know and don’t know about the Delta and longfin smelt Is extinction inevitable for the Delta and longfin smelt?  Despite extensive efforts and expense investigating potential causes of their decline, their numbers have reached an all-time low, particularly for the Delta smelt.  These species are listed as threatened through state and […]

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California Water Fix Aquatic Science Peer Review, Part 2: Supporting analyses for target aquatic species; Panel’s initial recommendations

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Presentations take an in-depth look at the analyses for salmonids, sturgeon, Delta smelt, and longfin smelt; panel gives initial recommendations Coverage of the independent science panel review of the draft biological opinion for the California Water Fix project continues with this second of two parts.  For the background, introductory remarks, and presentations on the project and the Section 7 consultation […]

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Managing fisheries during drought conditions: Maximizing the effectiveness of limited water supplies

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Fish and wildlife officials discuss the drought response actions being taken by federal, state, and local agencies to reduce the impacts to fish and wildlife resources As the weather heats up for the summer months and the drought drags on, water supplies are being stretched to their breaking point.  While agricultural and urban users have had to struggle with significant […]

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Managing turbidity for Delta smelt

Delta Smelt

Metropolitan’s David Fullerton and Paul Hutton say there’s a relationship between turbidity and Delta smelt, and demonstrate that by cutting back Delta pumping at strategic times, they can avoid take of Delta smelt at the export pumps and gain water in the long-run At the February 24th meeting of Metropolitan Water District’s Special Committee on the Bay-Delta, David Fullerton, Principal […]

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New report synthesizes what is known – and not known – about the life of a Delta smelt

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The Interagency Ecological Program releases the peer-reviewed report, An updated conceptual model of Delta smelt biology: our evolving understanding of an estuarine fish The Delta smelt is perhaps California’s most famous fish, having found itself placed firmly in the center of courtroom battles and water project operations. Once abundant throughout the estuary, the Delta smelt has been protected under federal […]

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Fall Midwater Trawl Index finds record low numbers of Delta smelt

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The annual survey conducted each fall since 1967 shows record low number for Delta smelt; longfin smelt is second lowest The California Department of Fish and Wildlife has completed the Fall Midwater Trawl Survey, a survey conducted each fall to determine the abundance of the Delta’s pelagic fishes. Pelagic fishes are those that live in the water column, rather than […]

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