. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. STRIPED BASS REPRODUCTION 183. Figure 74. Completed section of the Delta-Mendota Canal near its intersection with Highway 50 water into the San Joaquin Delta in addition to those already occurring naturally through Georgiana Slough and Three Mile Slough will prob- ably be necessary to prevent saline intrusion up the San Joaquin River. For this reason a second set of pumps, referred to as the Cross-Channel Pumping Plant, has been propo
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. STRIPED BASS REPRODUCTION 183. Figure 74. Completed section of the Delta-Mendota Canal near its intersection with Highway 50 water into the San Joaquin Delta in addition to those already occurring naturally through Georgiana Slough and Three Mile Slough will prob- ably be necessary to prevent saline intrusion up the San Joaquin River. For this reason a second set of pumps, referred to as the Cross-Channel Pumping Plant, has been proposed. It would transfer water directly from the Sacramento River at Walnut Grove into the present channels of the Mokelumne River, through which the water would flow southward across the San Joaquin Delta to replace removals at Tracy. Although final decisions with regard to this feature have not yet been reached by the Bureau of Reclamation, indications are that it will become necessary in the immediate future. The tidal currents which churn Delta waters continuously, produc- ing flows up to 150,000 cubic feet per second in the main San Joaquin,^ greatly complicate the over-all picture, and there is some uncertainty about what is going to happen with regard to salinity in the Delta when the Delta-Mendota pumps begin to operate in 1950. No major changes in water temperatures are anticipated in the Delta as a result of the operation of the Cross Channel. Preliminary Evaluation of the Cross Channel as a Threat to the California Striped Bass Population It must be emphasized, at the outset, that available information on distribution and size of early stages of striped bass is based on studies made during 1947, a notably dry year. It is being assumed that the situation found in 1947 was fairly representative. If it develops that ?Maximum flows of 153,000 were measured in the San Joaquin River by Bureau of Reclamation engineers in August and October of 19 45. Tides were normal.
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