128 
BULLETIN OF THE BUREAU OF FISHERIES 
RETURNS FROM EXPERIMENTS IN SUMNER STRAIT 
Twelve experiments were carried out at Ruins Point — six in 1924 and six in 1925. 
Fairly good series of each species were tagged, especially in 1925, and the results are 
of correspondingly increased value and interest. As comparatively few returns 
were obtained in 1924, it has not seemed worth while to show in detail the data for 
■each experiment of that year; therefore those referring to the reds, cohoes, and pinks 
have been combined in the tables. There appear to be significant differences in the 
results obtained from the experiments with chum salmon during July as compared 
with those for August, 1924, and in the table (Table 14) the data for the two months 
have been kept separate. The returns for each experiment of 1924 were studied 
separately, and it is believed that no information of importance is obscured by com- 
bining the records. 
One striking feature of the returns is the great number of localities from which 
tagged fish were recorded. This is doubtless due to the intensity of the fishing in 
this region as well as to the character of the gear used, a great many small purse 
seines having been operated in the numerous small bays as w~ell as traps in the main 
channels. 
RED SALMON 
The data relative to the red salmon tagged at Ruins Point are given in Table 11. 
The main route of migration clearly is through Sumner Strait and south in Clarence 
Strait. Six fish were recorded as taken north of Ruins Point in the region of Chatham 
Strait and Frederick Sound, and 5 were taken along the west coast of Prince of Wales 
Island. The rest (with the exception of five doubtful records), 169 in all, were taken 
along this one main migration route, in the adjacent waters, and in British Columbia. 
Seven were taken in the Stikine River and 5 at the hatchery of the Bureau of Fisheries 
on Lake McDonald, tributary to Yes Bay. Two were taken in the Nass and 13 in 
the Skeena River. Other local streams also doubtless contributed to the run of 
reds in the region of Ruins Point. 
Table 11.— Returns from red salmon tagged at Ruins Point, Sumner Strait 
Locality and date of tagging 
1924: July 
12 to 
Aug. 10 
1925 
Total 
num- 
Locality of recapture 
July 18 
July 20 
July 21 
July 22 
July 24 
July 25 
ber 
re- 
turned 
Num- 
ber 
Time 
Num- 
ber 
Time 
Num- 
ber 
Time 
Num- 
ber 
Time 
Num- 
ber 
Time 
Num- 
ber 
Time 
Num- 
ber 
Time 
Chatham Strait and Frederick 
Sound: 
1 
19 
1 
1 
10 
1 
1 
7 
1 
11 
2 
1 
(?) 
8 
1 
1 
1 
Sumner Strait: 
2 
6 
1 
9 
2 
1-8 
1 
0-3 
3 
0-7 
9 
18 
2 
1 0-12 
18 
2 24 
2 
i 
23 

1 
1 
12 
1 
3 
3-6 
2 
2 
5 
Point Colpoys 
i 
6 
1 
4 
1 
4 
i 4 
2-9 
1 
5 
8 
i Two recorded as taken previous to tagging. ! One with date of capture not recorded. 
