666 
BULLETIN OF THE BUREAU OF FISHERIES 
Point Colpoys region . — Those pink salmon migrating through Sumner Strait 
which pass Point Colpoys early in the season are destined for localities in Ernest Sound 
and the central region of Clarence Strait with a few continuing as far south as 
Revillagigedo Channel. Those passing the point later in the season are destined 
almost exclusively for localities in Snow Passage and the northern region of Clarence 
Strait. Thus, again, we find a seasonal difference in distribution. The early migrants 
are destined for the localities remote from the sea, the later migrants for the more 
proximate localities. 
LITERATURE CITED 
Davidson, F. A. 1934. The homing instinct and age at maturity of pink salmon ( Oncorhynchus 
gorbuscha). Bull. U. S. Bur. Fish., vol. XL VIII, No. 15. Washington. 
Foerster, R. E. 1929. An investigation of the life history and propagation of the sockeye salmon 
0 Oncorhynchus nerka) at Cultus Lake, British Columbia. No. 3. The downstream migration 
of the young in 1926 and 1927. Contr. Can. Biol, and Fish., N. S., vol. 5, No. 3. Toronto. 
Gilbert, C. H. 1913. Age at maturity of the Pacific coast salmon of the genus Oncorhynchus. 
Bull. U. S. Bur. Fish., vol. XXXII, 1912 (1913). Washington. 
Pritchard, A. L. 1933. Natural run of pink salmon ( Oncorhynchus gorbuscha ) in Masset Inlet. 
Annual Report of Biol. Board of Canada, 1933, p. 92. 
Pritchard, A. L. 1934. Propagation of pink salmon. Annual Report of Biol. Board of Canada, 
1934, p. 26. 
Rich, W. H. 1926. Salmon-tagging experiments in Alaska, 1924 and 1925. Bull. U. S. Bur. Fish., 
vol. XLII, Doc. No. 1005. Washington. 
Rich, W. H. 1932. Salmon-tagging experiments in Alaska, 1930. Bull. U. S. Bur. Fish., vol. 
XLVII, No. 11. Washington. 
Rich, W. H., and H. B. Holmes. 1928. Experiments in marking young chinook salmon on the 
Columbia River, 1916 to 1927. Bull. U. S. Bur. Fish., vol. XLIV, 1928 (1929). Washington. 
Rich, W. H., and F. G. Morton. 1929. Salmon-tagging experiments in Alaska, 1927 and 1928. 
Bull. U. S. Bur. Fish., vol. XLV, Doc. No. 1057. Washington. 
Rich, W. H., and A. J. Suomela. 1927. Salmon-tagging experiments in Alaska, 1926. Bull. 
U. S. Bur. Fish., vol. XLIII, Doc. No. 1022. Washington. 
Snyder, J. O. 1921. Three California marked salmon recovered. Calif. Fish and Game, vol. 7, 
No. 1, Jan. 1921, pp. 1-6, figs. 1-4. Sacramento. 
Snyder, J. O. 1922. The return of marked king salmon grilse. Calif. Fish and Game, vol. 8, 
No. 2, Apr. 1922, pp. 102-107, figs. 40-50. Sacramento. 
Snyder, J. O. 1923. A second report on the return of king salmon marked in 1919 in Klamath 
River. Calif. Fish and Game, vol. 9, No. 1, Jan. 1923, pp. 1-9, figs. 1-5. Sacramento. 
Snyder, J. O. 1924. A third report on the return of king salmon marked in 1919 in Klamath 
River. Calif. Fish and Game, vol. 10, No. 3, July 1924, pp. 110-114, pis. 1-2. Sacramento. 
