710 EIGHTH PACIFIC SCIENCE CONGRESS 



oceanographic survey during the summer of 1952 to determine the tem- 

 perature distribution pattern, so these daily records from the coastal 

 sampling stations were doubly important because they are the only cri- 

 teria of what type of surface temperature distribution must have existed 

 in these offshore waters during the summer of 1952. 



Considerable research has been done on the relationship of seawater 

 conditions in Hecate Strait, as monitored by Triple Island station, and 

 lluctuations in the strength of lemon-sole year classes in the fishery 

 in that area. Researchers have found that when the water temperatures 

 during January and February are lower than normal there is an in- 

 crease in the availability of fish in April and May. Further studies are 

 progressing to determine why the relationship exists. 



An association has been found between availability of the cohoe 

 salmon in the fishery off the west coast of Vancouver Island and the 

 salinities of the coastal waters as observed at Amphitrite and Kains 

 sampling stations. It appears that higher than normal inshore salinities 

 during the summer months provide better cohoe fishing for the inshore 

 boats and poor fishing for the offshore boats. Studies concerning the 

 ocean environment of salmon and their feeding habits are being con- 

 tinued to determine the reason for this correlation. 



Bibliography 



HOLLISTER, H. J. Daily sea water obsei-vations in Georgia Strait. Fish. Res. 



Bd. Canada, Prog. Rep. Pac., No. 91, December, 1949. 

 . Daily sea water obsei-vations along the west coast of Vancouver 



Island. Ibid., No. 86, April, 1951. 

 . Daily sea water obsei-vations in northern British Columbia wa- 



ters. Ibid., No. 91, June, 1952. 

 . Daily sea water observations along the central British Columbia 



coast. Ibid., No. 94, March, 1953. 

 PiCKARD, G. L. and D. C. McLeod. Seasonal variation of temperature and 



salinity of the surface waters of the British Columbia coast. J. Fish. 



Res. Bd. Canada, 10, p. 125, 1953. 

 TULLY, J. P. Weather and the ocean. Fish. Res. Bd. Canada, Prog. Rep. 



Pac., No. 26, December, 1935. 

 . Report on dynamic studies off the Canadian Pacific coast, 1936. 



Trans. A7ner. Geo. Union, 18, p. 228, 1937. 



Seasons in the sea. Fish. Res. Bd. Canada, Prog. Rep. Pa<:., 



No. 32, June, 1937. 



Some relations between meteorology and coast gradient currents 



off the Pacific Coast of North America. Trans. Artier. Geo. Union, 19, 

 p. 176, 1938. 



Seasonal cycles in the sea. Fish. Res. Bd. Canada, Prog. Rep. 



Pac, No. 85, December, 1950. 



