618 
BULLETIN OP THE BUREAU OF FISHERIES 
Sal in i t y 
I9Z4 
!3ZS 
/9ZH 
/air 
/S28 
Figure 31. — Monthly maximum and minimum salinities at Pivers 
Island, 1924-1928. (Based on one daily hydrometer reading, cor- 
rected for temperature but instrumental error not known.) (See 
Table 10) 
Table 8.- — -Daily salinities at Pivers Island through autumnal -periods of extreme destruction, moderate 
mortality, and good survival 
[Fractions of parts per thousand are omitted] 
AUTUMN SALINITIES 
Day of month 
Date 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
September, 1924 
21 
23 
24 
30 
31 
30 
31 
31 
32 
31 
32 
31 
29 
27 
22 
23 
6 
8 
13 
14 
21 
17 
12 
15 
16 
19 
22 
8 
September, 1926 
36 
37 
37 
37 
37 
37 
37 
37 
37 
36 
34 
34 
34 
35 
34 
33 
34 
34 
34 
32 
33 
33 
33 
33 
33 
34 
34 
33 
32 
32 
September, 1928 
35 
35 
35 
34 
34 
33 
31 
34 
34 
34 
32 
32 
30 
30 
30 
31 
32 
34 
33 
30 
28 
24 
26 
27 
27 
25 
27 
26 
28 
27 
October, 1924__ 
15 
19 
19 
17 
18 
17 
18 
20 
17 
17 
18 
20 
18 
18 
17 
18 
20 
21 
20 
21 
21 
18 
14 
14 
16 
19 
22 
20 
19 
22 
25 
October, 1926 
31 
29 
31 
32 
31 
32 
32 
31 
32 
34 
34 
34 
34 
34 
34 
35 
34 
34 
33 
34 
33 
33 
34 
33 
34 
34 
34 
34 
33 
34 
34 
October, 1928 
27 
27 
27 
27 
26 
25 
24 
22 
22 
22 
20 
21 
19 
19 
23 
25 
27 
28 
29 
29 
30 
30 
31 
31 
32 
32 
32 
32 
32 
30 
27 
WINTER SALINITIES 
January, 1925 
22 
21 
24 
27 
20 
24 
24 
1 
24 19 
17 
18i 
19 
20 
18 
19 
18 
19 
20 ' 
20 
17 
16 
20 
17 
14 
14 
16 
19 
15 
16 
15 
18 
February, 1925 
20 
18 
19 
20 
21 
20 
21 20 
21 | 
22, 
20 
21 
21 
23 
24 
24 
24: 
1 
20 
23 
24 
23 
23 
22 
24 
24 
24 
24 
