212 
BULLETIN OF THE BUREAU OF FISHERIES 
dropped to 7 per mille in the upper part of the river (Agawam River) and 26 at its 
mouth. 
Table 2. — Hourly fluctuations in the temperature and salinity of water in Wareham River, August 28, 
1926 1 
Time 
Station II 
Station 1 2 
Time 
Station II 
Station 1 2 
Tem- 
pera- 
ture, 
° C. 
(sur- 
face) 
Salinity, per 
mille 
Tem- 
pera- 
ture, 
° C. 
(sur- 
face) 
Salinity 
per 
mille 
(sur- 
face) 
Tem- 
pera- 
ture, 
0 C. 
(sur- 
face) 
Salinity, per 
mille 
Tem- 
pera- 
ture, 
° C. 
(sur- 
face) 
Salin- 
ity, per 
mille 
(sur- 
face) 
Sur- 
face 
Bot- 
tom 
Sur- 
face 
Bot- 
tom 
9.30 a. m 
20.3 
28. 30 
29. 13 
20. 6 
28. 77 
2 p. m 
21. 0 
26. 56 
29. 74 
21. 1 
29. 56 
10 a. m 
20. 4 
28. 59 
28. 96 
20. 7 
28. 82 
3 p. m 
21. 7 
27. 06 
28. 55 
21. 2 
28.80 
10.30 a. m _ 
20.3 
29. 42 
3.30 p. m 
21.7 
28. 24 
11 a. in. 
20.3 
29. 57 
29. 40 
20.5 
29. 37 
4 p. in 
21.7 
27. 81 
28. 17 
21. 2 
29. 17 
11.30 a. m 
20. 6 
29. 75 
4.30 p. m 
21.7 
27. 85 
12 noon 
20.8 
29. 90 
29. 97 
21. 2 
29. 22 
5 p. m 
21. 7 
27.36 
27. 39 
22. 0 
28. 96 
12.30 p. m 
21. 2 
29.91 
5.30 p. m 
21.8 
27.81 
1 p. m 
21. 3 
29. 52 
29. 90 
21. 0 
29. 45 
6 p. m 
22. 0 
27. 59 
29. 90 
22.4 
29 78 
1.30 p .m 
21.3 
29. 96 
6.30 p. m 
22. 4 
29. 51 
1 High water at 12 (noon); low water at 5.23 p. m. Range of tide, 4.2 feet. 
2 Observations at Station I were made 5 minutes after time shown. 
The horizontal distribution of the water of different concentrations of salt does 
not remain constant but is subject to fluctuations, depending on the stage of the 
tide and river discharge. A good idea of the distribution of salinities in relation to 
the stage of the tide can be gained by examining Figures 5, 7, and 8, showing the 
results of the observations made on the calm days of August 25 and September 27, 
when there was no mixing of water caused by the action of wind. All the observa- 
tions were made within 1 hour and 10 minutes at high or low water. By comparing 
Figures 7 and 8, one can notice that in the upper part of the river the difference in 
the salinity due to the stage of the tide was 3 per mille, and that at high tide the 
salinity of 30 per mille extended over the entire lower half of the river. 
Table 3. — Temperature and salinityflf the water at the surface of Wareham River, July to August, 1926 
Date 
Station I 
Station II 
Station III 
Station IV 
Station V 
Station VI 
Station VII 
Station VIII 
Tem- 
pera- 
ture, 
° C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
° C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
° C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
0 C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
° C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
° C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
° C. 
Salin- 
ity per 
mille 
Tem- 
pera- 
ture, 
0 C. 
Salin- 
ity per 
mille 
July 9 
24.2 
23.5 
24.0 
July 14 
22. 1 
21.8 
21.8 
22.0 
22. 1 
July 16 
19.8 
19.9 
20. 1 
20. 1 
19.0 
July 19 
23.0 
23.0 
23.0 
23.2 
23. 0 
July 21 
24.6 
23.7 
23.7 
23.8 
23.4 
23.6 
July 23 
27.0 
26.8 
27.8 
26.7 
26.2 
26. 6 
28.3 
July 26 
24.0 
24.7 
25.2 
24.7 
25.3 
24.4 
24. 7 
25. 0 
July 28 
25.2 
24.4 
25.0 
23.6 
25.9 
24.0 
24. 1 
24.8 
July 30. 
22.0 
22.8 
22.6 
22.3 
21. 18 
23.4 
22.3 
22.3 
22.6 
August 2 
22. 2 
28. 04 
22. 5 
29. 76 
22.2 
25.28 
22. 2 
25. 30 
22.3 
13. 70 
22.1 
10. 72 
22.0 
August 4 
28.0 
27. 14 
26.5 
27. 70 
27.5 
26. 88 
26.7 
17. 13 
28.2 
14. 72 
28.0 
9.83 
18. 51 
August 6 . ... . 
24.0 
28. 82 
24.0 
27. 17 
24. 3 
22. 44 
24.2 
24. 60 
24.3 
21. 02 
24. 2 
August 9. 
25.3 
28. 16 
25.0 
27.66 
25.2 
28. 94 
25.8 
21.26 
25.2 
27. 93 
25.2 
21.28 
25.3 
18. 22 
26.0 
27.81 
August 13 
24.8 
29. 58 
24.5 
28. 86 
24.3 
29. 18 
26.0 
23.17 
20.0 
23.15 
25.7 
20. 25 
25.2 
29. 32 
August 17 ... 
22.3 
26.87 
22.2 
26. 77 
21.5 
23.0 
23.0 
7. 12 
23.0 
7. 12 
22.3 
