ships. The preliminary results from 

 study of 6000 observations from some 

 300 ships suggest that about 12 percent 

 of observations were from ships sys- 

 tematically reporting temperatures 

 more than 2° F. higher or lower than 

 the mean of the reporting fleet, with 

 some ships departing as much as 5° F. 

 Whether or not temperatures reported 

 by the fleet average generally above or 

 below the true temperature remains to 

 be investigated (communication from 

 O. E. Sette). 



Individual injection temperatures 

 used in preparation of this report were 

 unedited, and the data presented here 

 should be considered a first approxima- 

 tion for early use. The Stanford Labora- 

 tory is investigating editing procedures 

 and will present edited data in the future 

 for broader regions of the Pacific 

 Ocean. 



Monthly temperature summaries by 

 2 -degree squares for the region bounded 

 by the west coast of North America 

 and longitude 150° W. and latitude 20° N. 

 to 54° N. were used from the historical 

 records to form 12-year (1947-1958) 

 monthly averages, which are presented 

 in Part I. Monthly temperature anomaly 

 charts based upon the 12-year monthly 

 averages are presented in Part II. Two 

 or more observations were required 

 before a 2-degree square summary 

 from the historical records was used. 

 In the 12-year monthly average charts, 

 Part I, temperatures are listed only 

 when 6 or more years of the 12-year 

 period were represented. The number 

 in the upper right-hand corner of each 

 2-degree square denotes the number of 

 years that were included in the average. 

 Each year's data were weighted equally. 



Contour interval for the 144 anomaly 

 charts, Part II, is 2° F. Hatching 

 indicates regions colder than average. 

 Where confusion could arise in the 

 direction of the anomaly gradient, 

 greater than ( >) and less than (<) 

 symbols are used. Isolated 2-degree 

 squares were not contoured; that is, 

 there must have been continuity through 

 two or more squares before contours 

 were drawn. Areas enclosed by dashed 

 lines are regions where data were not 

 available or were too limited to be of 

 value. 



Twelve-year (1947-1958) monthly 

 means to the nearest 0.1° F. for the 

 four coastal stations are presented in 

 Part I. Monthly anomalies for the 

 coastal stations (Part II) are based 

 upon the 12 -year monthly means. Plus 

 anomalies indicate temperatures 

 warmer than the 12-year mean, and 

 minus anomalies colder than the mean. 



LITERATURE CITED 



ALVERSON, FRANKLIN G. 



1959. Geographical distribution of 

 yellowfin tuna and skipjack 

 catches from the eastern tropi- 

 cal Pacific Ocean, by quarters 

 of the year, 1952-1955. Inter- 

 American Tropical Tuna Com- 

 mission, Bulletin, vol. 3, no. 4, 

 p. 165-213. 



BLACKBURN, MAURICE. 



1960. Scripps Tuna Oceanography 

 Research (STOR) Program: 

 Final Report. Scripps Institution 

 of Oceanography Reference 60- 

 50, 83 p. 



FRANCESCHINI, GUY A. 



1955. Reliability of commercial 

 vessel reports of sea surface 

 temperatures in the Gulf of Mex- 

 ico. Bulletin of Marine Science 

 of the Gulf and Caribbean, vol. 5, 

 no. 1, p. 42-51. 



HOLLISTER, H. J. 



1960. Classifications of daily ob- 

 servations of seawater tempera- 

 ture and salinity on the Pacific 

 Coast of Canada 1915-1959. 

 Fisheries Research Board of 

 Canada, Manuscript Report 

 Series (Oceanographic and Lim- 

 nological) No. 68, 139 p. 



HUBBS, CARL L. and LEONARD P. 

 SCHULTZ. 

 1929. The northward occurrence of 

 southern forms of marine life 

 along the Pacific coast in 1926. 

 California Fish and Game, vol. 

 15, no. 3, p. 234-240. 



MARKET NEWS, BRANCH OF. 



1960. Addition of eastern Pacific 

 fishing information to California 

 "Monthly Summary". U.S. Fish 

 and Wildlife Service, Bureau of 

 Commercial Fisheries, Com- 

 mercial Fisheries Review, vol. 

 22, no. 10, p. 33-34. 



