2014 Technical Memorandum Regarding the Accounting of San Joaquin River Spring-run Chinook Salmon at the Central Valley Project and State Water Project Sacramento-San Joaquin Delta Fish Collection Facilities
Keywords:anadromous fish, Central Valley Project (CVP), ecosystem management, endangered species, native fish, Sacramento–San Joaquin Delta, State Water Project (SWP), water project operations
Collateral Damage: A citizen’s guide to fish kills and habitat degradation at the state and federal water project pumps in the Delta$0.00 Bulk Download
Collateral Damage: A citizen’s guide to fish kills and habitat degradation at the state and federal water project pumps in the DeltaThe Bay Institute | March 1, 2012...Summary
Large-scale fish kills and habitat destruction aren’t an unusual occurrence at the giant federal and state pumps that export water from the Sacramento-San...
Large-scale fish kills and habitat destruction aren’t an unusual occurrence at the giant federal and state pumps that export water from the Sacramento-San Joaquin Delta to agribusinesses and cities in the southern half of the state. These events are business as usual.
• Every day, between 870 and 61,000 fish – including from 200 to 42,000 native and endangered fishes – are “salvaged” at the pumps. Most die in the process.
• On average, over 9 million fish – representing the twenty fish species considered in this report – are “salvaged” each year at the pumps. As many as 15 million fish of all species encountered are “salvaged” each year.
• Up to 40% of the total population of the endangered delta smelt and 15% of the endangered winter-run population of Chinook salmon are killed at the pumps in some years. In the first half of 2011, over 8.6 million splittail were salvaged.
• Salvage estimates drastically underestimate the problem. The numbers do not factor in the results of “indirect” mortality, as high levels of export pumping disrupt fish migration, shrink the amount of non-lethal habitat available to fish species, and remove vast amounts of biomass, including fish eggs and larvae too small to be screened at the pumps.
• Export pumping causes the lower San Joaquin River to flow backwards most of the year and removes the equivalent of 170 railroad boxcars of water – and the accompanying fish, other organisms, and nutrients – from the Delta ecosystem every minute.
• Large numbers of fish being entrained is a problem even for species that are not currently listed as “endangered.” Killing large numbers of fish year after year cuts off population growth in response to favorable conditions and can start the species on a downward path to extinction. As the species declines, the population impacts of entrainment become proportionately larger.
• Entrainment is a real problem. But the same interests in the Delta export community who claim that it isn’t also back constructing expensive new conveyance facilities such as a peripheral canal or tunnel to solve the problem that they say doesn’t exist.
Aquatic Ecosystem Stressors in the Sacramento-San Joaquin Delta$0.00 Bulk Download
Aquatic Ecosystem Stressors in the Sacramento-San Joaquin DeltaPublic Policy Institute of California (PPIC) | May 5, 2012...Summary
This report presents results from an analysis of the institutional and legal options for more effective ecosystem management in the Sacramento-San Joaquin Delta....
This report presents results from an analysis of the institutional and legal options for more effective ecosystem management in the Sacramento-San Joaquin Delta. It is part of a wide-ranging study on the management of multiple ecosystem stressors in the Delta. .
The Twin Tunnels: Ruinous to Ratepayers, Catastrophic for the Environment$0.00 Bulk Download
The Twin Tunnels: Ruinous to Ratepayers, Catastrophic for the EnvironmentCalifornia Water Impact Network (C-WIN) | January 1, 2014...Summary
Water is California’s most essential resource. It is limited in availability—in some years, extremely limited, forcing devastating delivery cut-backs to cities, farms and...Water is California’s most essential resource. It is limited in availability—in some years, extremely limited, forcing devastating delivery cut-backs to cities, farms and the environment. A recent paper in Frontiers in Ecology and the Environment concludes that the average flow in the Sacramento River—the state’s major source for developed surface water—could decrease by 20 percent by 2050 largely due to climate change. By that same year, California’s population is expected to top 50 million, up from the current figure of 38 million. In other words, our water supplies will dwindle as our population burgeons.Meanwhile, the state’s water delivery policies are already demonstrably incapable of providing water to citizens, agriculture and commerce while simultaneously sustaining essential ecosystems. In response, Governor Jerry Brown and his allies in the state legislature and agribusiness are promoting the “Twin Tunnels” boondoggle: a massive conveyance system that will shunt water under the Sacramento/San Joaquin Delta to the south state.
Habitat Restoration in the Sacramento-San Joaquin Delta and Suisun Marsh: A Review of Science Programs$0.00 Bulk Download
Habitat Restoration in the Sacramento-San Joaquin Delta and Suisun Marsh: A Review of Science ProgramsDelta Independent Science Board | April 25, 2013...Summary
Current plans call for the restoration of tens of thousands of acres of mainly intertidal habitat in the Sacramento-San Joaquin Delta and Suisun...
Current plans call for the restoration of tens of thousands of acres of mainly intertidal habitat in the Sacramento-San Joaquin Delta and Suisun Marsh. Restoration on this scale presents both formidable challenges and tremendous opportunities. As part of its legislatively mandated oversight of Delta science programs, the Delta Independent Science Board reviewed these habitat restoration efforts. We held discussions with individuals from state and federal agencies, NGOs, consulting firms, and universities. We were impressed by their dedication, enthusiasm, and knowledge, as well as by the scientific and institutional challenges they face.
Our findings and observations about the restoration efforts are grouped under a series of criteria for a successful restoration program. In such a program: the goals are clearly articulated; the design incorporates spatial and temporal context, adaptive management and flexibility, and monitoring; modeling is used in design and evaluation; planning and implementation are coordinated among projects; the necessary scientific expertise is available; and stakeholders are involved early and often.
Our findings and recommendations agree with those reached independently by National Research Council (NRC) panels. For convenience, as in the Delta Plan, we use "the Delta" to encompass both the statutory Delta and Suisun Marsh.