60 University of California Publications in Zoology [ Vou. 14 
TABLE 12—(Continued) 
Division 
of Bay Station Surface Bottom Flood Ebb Average* 
1 4975 10.46 15.61 9.84 16.24 13.04 
(17%) 4976 13.63 17.54 15.36 15.81 15.58 
4977 13,23 LOT 15.46 17.48 16.47 
4978 17.80 21.30 21.27 17.83 19.55 
4979 22.88 23.15 24.20 21.83 23.02 
4980 21.52 23.02 24.40 20.15 22.28 
4981 20.17 23.22 21.45 21.95 21.70 
4 5001 28.45 28.59 28.68 28.35 28.52 
(387%) 5002 28.42¥ 28.32 28.48 28.26 28.37 
5003 28.25 28.30 28.31 28.25 28.28 
5004 28.12V 28.07 28.08 28.11 28.10 
5005 27.82% 27.79 27.85 27.77 27.81 
5006 27.64 27.58 27.50 27.73 27.61 
5007 26.97 27.44 27.05 27.37 27.21 
5008 27.02 28.34 27.7 28.10 27.93 
Means (weighted) 25.658 26.792 26.610 25.922 26.225 
TABLE 13 
SALINITY OF SAN FRANCISCO Bay 
Period II (April 23—May 6) 
Division 
of Bay Station Surface Bottom Flood Ebb Average* 
3 4967 28.96 29.64 27.17 31.438 29.30 
(36%) 4968 26.51 31.16 22.99 30.59 28.83 
4969 25.38 29.83 24.85 80.37 27.61 
4970 24.12 29.22 24.32 29.06 26.62 
2 4971 22.52 28.61 22.83 28.29 25.57 
(10%) 4972 23.45 27.35 24.41 26.39 25.40 
4973 23.19 26.86 25.20 24.85 25.02 
4974 21.47 25.10 23.60 22.96 23.28 
1 4975 9.95 13.35 TUNG S)  seeeseee 11.65 
(17%) 4976 12.45 14.29 BERS / | eecereen 13.37 
4977 9.08 10.89 14.00 5.97 9.98 
4978 17.08¥ 12.65 17.15 8.09 14.87 
4979 16.04 21.89 20.42 13.13 18.96 
4980 18.06 22.05 21.01 16.17 20.06 
4981 16.78 22.98 21.51 18.25 19.88 
4 5001 26.87 27.04 26.82 27.08 26.96 
(37%) 5002 27.01 27.01 26.94 27.17 27.01 
5003 27.09% 27.04 27.01 27.12 27.07 
5004 27.17, 27.01 27.09 27.01 27.09 
5005 25.93 27.01 27.01 24.85 26.47 
5006 26.73 27.08 27.52 26.29 26.91 
5007 26.94 27.81 27.59 27.17 27.38 
5008 26.21 28.47 27,24 27.45 27.35 
Means (weighted) 24.021 26.460 24.276 25.489 25.233 
* Mean of surface and bottom. 
