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We investigated the degree of flexibility in retention strategies of young fishes in the low-salinity zone (LSZ) of the San Francisco Estuary during years of highly variable river flow. We conducted depth-stratified sampling over three full tidal cycles in each year from 1994 to 1996. In 1994, exotic striped bass (Morone saxatilis), native longfin smelt(More)
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Populations of juvenile salmon emigrating from natal rivers to the ocean must often traverse different migratory pathways that may influence survival. In regulated rivers, migration routes may consist of a network of channels such as in the Sacramento-San Joaquin River Delta, or of different passage structures at hydroelectric dams (e.g., turbines or(More)
1. Environmental flows are more than just volumes of inflows and outflows. The frequency, timing, duration, and rate of change of flows, as well as the occurrence of overbank flows also are biologically important. There is no one correct flow number. Seasonal, interannual, and spatial variability, to which our native species are adapted, are as important as(More)
  • Phil Isenberg, Arnold Schwarzenegger, +184 authors Joaquin River Delta
  • 2008
The Sacramento-San Joaquin River Delta covers more than 1,300 square miles. Its more than 60 " islands " , together with its natural channels and sloughs are the home to 750 species of plants and wildlife as well as 55 species of fish. The Delta is the hub of California's water delivery system, taking runoff from about 40 percent of California's landmass(More)
The project's strategic plan is updated every seven years and includes operational objectives, performance measures , reporting standards, identification of risks and opportunities , and annual reviews. Lessons learned: 1) predator and weed control are intensive, long-term management activities; 2) wetland restoration and construction techniques cannot be(More)
showed mean differences of 4.5 cm/s in the u (eastward) and 7.6 cm/s in the v (northward) components, and RMS differences of 14.7 cm/s in the u component and 21.0 cm/s in the v component. Quantitative comparisons between the RiverSondes and ADCPs on autonomous survey vessels at Threemile Slough showed mean differences of 0.007 cm/s in the u component and(More)
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