PACIFIC SALMON 



59 



tern that the populations tend to maintain 

 their identities. 



4. Marking experiments with pink salmon 

 have so far demonstrated an overwhelming 

 return to the natal river with insignificant 

 wandering. 



5. The British Columbia results do. not 

 lead one to believe that salmon which pass 

 beyond the influence of the parent stream 

 do not necessarily return to it. Tagging has 

 showm that the fish entering a stream on a 

 spawning migration arrive frequently from 

 far distant points. From circumstantial 

 evidence it is assumed that they migrated 

 the opposite way as young and therefore 

 must have gone beyond their stream in- 

 fluence. Nothing is known of the mecha- 

 nism causing the return. 



Eefeeences Cited 

 Tagging — Spring Salmon 



Clemens, W. A. 1932. Pacific Salmon Migra- 

 tion: The Tagging of the Spring Salmon on the 

 East Coast of Vancouver Island in 1927 and 1928 

 with Notes on Incidental Tagging of Other Fish. 

 Biol. Bd. Can., Bull. XXVII. 



MOTTLEY, Chas. McC. 1929. Pacific Salmon Mi- 

 gration : Eeport on the Study of the Scales of 

 the Spring Salmon, Oncorhynchus tschawytscha, 

 Tagged in 1926 and 1927 off the West Coast of 

 Vancouver Island. Contr. Canad. Biol., N. S. 4, 

 No. 30. 



Pritchard, Andrew L. 1934. Pacific Salmon Mi- 

 gration: The Tagging of the Spring Salmon in 

 British Columbia in 1929 and 1930. Biol. Bd. 

 Can., Bull. XLI. 



Williamson, H. Chas. 1927. Pacific Salmon Mi- 

 gration: Eeport on the Tagging Operations in 

 1925. Contr. Canad. Biol., N. S. 3, No. 9. 



. 1929. Pacific Salmon Migration: Ee- 

 port on the Tagging Operations of 1926, with 

 Additional Eeturns from the Operations of 1925. 

 Contr. Can. Biol., N. S. 4, No. 29. 



-, AND W. A. Clemens. 1932. Pacific 



Tagging — Sockeye Salmon 



Bolton, Lloyd L. 1930. Sockeye Tagging on the 

 Fraser Eiver, 1928. Biol. Bd. Can., Bull. XVI. 



Craigie, E. H. 1926. A Preliminary Experiment 

 upon the Eelation of the Olfactory Sense to the 

 Migration of the Sockeye Salmon {Oncorhynchus 

 nerka, Walbaum). Trans. Roy. Soc. Can., Third 

 Series, Vol. XX, Part 2, Sect. V. 



O'Malley, Henry, and Eicii, Willis II. 1919. 

 Migration of Adult Sockeye Salmon in Puget 

 Sound and the Fraser Eiver. App. VIII to 

 Rept. U. S. Comm. Fish, for 1918. Doc. U. S. 

 Bur. Fish., 873. 



Williamson, Chas. H. See Williamson, 1927, 

 above. 



Marking — Sockeye Salmon 



FOERSTER, E. E. 1936. The Eeturn from the Sea 

 of Sockeye Salmon {Oncorhynchus nerka) with 

 Special Eeference to Percentage Survival, Sex 

 Proportions and Progress of Migration. J. Biol. 

 Bd. Can., Vol. III. 



. 1929. A Eeport on the Eeturn of Sock- 

 eye Salmon Marked at Cultus Lake. Biol. Bd. 

 Can., Prog. Rept. Pac, No. 2. 



. 1930. The Eeturn from the Sea in 1929 



of Sockeye Salmon Marked at Cultus Lake in 

 1927. Biol. Bd. Can., Prog. Rept. Pac, No. 5. 

 EiCKER, Wm. E., and Eobertson, a. 1935. Ob- 

 servation on the Behavior of Adult Sockeye Sal- 

 mon During the Spawning Migration. Can. 

 Field Nat., Vol. XLIX, No. 8. 



Marking — Pink Salmon 



Pritchard, A. L. 1932. The Eeturn of Marked 



Pink Salmon in 1932. Biol. Bd. Can., Prog. Sept. 



Pac, No. 15. 

 . 1934. The Interpretation of the Ee- 



coveries of Marked Pink Salmon in 1933. Biol. 



Bd. Can., Prog. Rept. Pac, No. 20. 



1934. The Eecovery of Marked Pink 



Salmon in 1934. Biol. Bd. Can., Prog. Rept. 

 Pac, No. 22. 



1937. The Findings of the British Co- 



Salmon Migration: The Tagging Operations at 

 Quatsino and Kyuquot in 1927, with Additional 

 Eeturns from the Operations of 1925 and 1926. 

 Biol. Bd. Can., Bull. XXVI, 



lumbia Pink Salmon Investigation. Part II. 

 Marking Experiments and Natural Propagation. 

 Biol. Bd. Can., Prog. Rept. Pac, No. 34. 



1938. The Findings of the British Co- 



lumbia Pink Salmon Investigation. Part III. 

 Attempts to Build an "Off" Year Eun in Mas- 

 set Inlet. Biol. Bd. Can., Prog. Rept. Pac, No. 

 35. 



