MIGRATION OF ADULT SOCKEYE SALMON. 29 
Tanne 18.~-PeRCENTAGES oF ToTaAL Fish ReEcovERED rrom Each Reaction WuicH 
WERE MarkKeEpD AT EAcu STation.@ 












1 2 3 4 6 | 7 8 9 10 
a See ER al Re Ay | eae 10 34.3 31.0 9.1 5.8 4.8 
sei] 8 aaa eet 57.0 S600 ees 40 37.3 33.9 20.4 21.6 18.6 
Crm rest. by esis te 26.7 42.5 100 50 26.8 20.4 17.5 12.4 6.9 
1D) ore ehsa eee fee Sal Nea ag FET lee SPSS ic Mae A) | a 10.7 47.8 48.3 i be | 
LOPES ME ROR AEST! lac Sie) Pes (sabes os aeons | eee ear | 1.5 3.8 5.1 11.9 57.4 

a No specimens were recovered in region 5. 
There is apparently considerable interchange of fish between re- 
gions 1 and 2, as is evidenced by the fact that 9.6 per cent of the 
returned fish marked at station B, located in region 1, were taken in 
region 2, and that 11.5 per cent of the fish marked at station C, in 
region 2, were taken in region 1. From the region of Washington 
Sound a very few fish pass northward through Haro Strait (region 4), 
but the proportion must be small compared with those passing 
through Rosario Strait and on up through the Strait of Georgia. 
The apparent proportions may, however, be modified by the fact 
that there are many more traps in Rosario Strait than in Haro 
Strait. The few fish taken in Haro Strait came from stations A, B, 
and C, as would be expected. Only two specimens were taken in 
Deception Pass, both marked at station C. No fish are recorded as 
deme been taken in the central channels of the San Juan Archi- 
elago. 
< From the southern part of the Strait of Georgia (locally desig- 
nated the Gulf of Georgia) the fish pass Point Roberts and enter 
Canadian territorial waters. Very soon thereafter they must enter 
the river, especially through Canoe Pass and the main mouth of the 
a eae and begin their journey up the river to the spawning 
rounds. 
5 In summarizing, the route followed by the very great majority of 
the salmon entering the Strait of Juan de Fuca and bound for the 
Fraser River may be stated as follows: Across Washington Sound to 
the “Banks” south of the San Juan Islands and to the western 
shore of Whidbey Island; from there northward through Rosario 
Strait and the southern part of the Strait of Georgia, past Point 
Roberts to the mouths of the Fraser River. There is no evidence 
to indicate that this route is varied in different parts of the season. 
As might be expected, this route is well indicated by the location 
of the various trap sites. The approximate number of traps in the 
various regions of Puget Sound for which licenses were issued in 1918 
is as follows: 4 

Remonyl side. jel. gered 6. cies 1 | Resions7 145. oy. oer fet i] 
Lite Lh iy. 2 eae Spee Ce ne Sa eg ees 20>): FVCG100 8) on sp Sh eibeek ae Mt ae 40 
cea Ne tg ial el am 13 Reson D920 te eee ee a 39 
emer sane etek 2) SAA. Se 11 
Remonisaes gait. ero 1cioeets ee 4 Potala Bes Fs 28. 212 178 
Repion Gs ssasaer a: a: Jute. aegise 26 
In addition to the above there are 6 traps located on the Canadian 
side of the Straits of Juan de Fuca, on Vancouver Island, 11 scatter- 
ing traps along the southern shore of these straits, and 29 in Ad- 

a Based upon licenses issued by the Fish and Game Commission of the State of Washington, 
160695°—20 20 

