MURPHY and SHOMURA: PRE-EXPLOITATION ABUNDANCE OF TUNAS 



Sette, several other persons devoted thought and 

 time to the formulation of the program. Chiefly, 

 these are Donald L. McKernan, Thomas S. 

 Austin, and the late Townsend Cromwell. 



0. E. Kerns and Frank Williams reviewed the 

 manuscript. 



LITERATURE CITED 



Austin, T. S. 



1954a. Mid-Pacific oceanography III, Transequa- 

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1954b. Mid-Pacific oceanography, Part V, Trans- 

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1958. Variations with depth of oceanographic pro- 

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 Cromwell, T. 



1951. Mid-Pacific oceanography, January through 

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1953. Circulation in a meridional plane in the cen- 

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1954. Mid-Pacific oceanography II, Transequator- 

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 1951. In Mid-Pacific oceanography, Parts II and 

 III, Transequatorial waters, 1950-51, p. 1-13. U.S. 

 Fish Wildl. Serv., Spec. Sci. Rep. Fish. 131. 



1956. Eastropic E.xpedition: What it seeks, and 

 where it fits into practical industrial fishing. 

 Pac. Fisherman 54(8) :25, 27, 29. 

 Cromwell, T., R. B. Montgomery, and E. D. Stroup. 



1954. Equatorial Undercurrent in Pacific Ocean 

 revealed by new methods. Science (Wash., D.C.) 

 119:648-649. 



FOFONOFF, N. P., AND R. B. MONTGOMERY. 



1955. The Equatorial undercurrent in the light of 

 the vorticity equation. Tellus 7:518-521. 



HiDA, T. A., AND J. E. King. 



1955. Vertical distribution of zooplankton in cen- 

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 Ikehara, I. I. 



1953. Live-bait fishing for tuna in the central Pa- 

 cific. U.S. Fish Wildl. Serv., Spec. Sci. Rep. Fish. 

 107, 20 p. 

 IVERSEN, E. S. 



1955. Size frequencies and growth of central and 

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 Serv., Spec. Sci. Rep. Fish. 162, 40 p. 



1956. Size variation of central and western Pa- 

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IVERSEN, E. S., AND H. O. YOSHIDA. 



1956. Longline fishing for tuna in the central equa- 

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June, F. C. 



1951. Preliminary fisheries survey of the Hawaii- 

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King, J. E. 



1954. Variations in zooplankton abundance in the 

 central equatorial Pacific, 1950-1952. Symposium 

 on marine and fresh-water plankton in the Indo- 

 Pacific, Bangkok, January 25th and 26th, 1954, 

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 Djakarta.) 



King, J, E., and J. Demond. 



1953. Zooplankton abundance in the central Pa- 

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 144. 



King, J. E., and T. S. Hida. 



1954. Variations in zooplankton abundance in 

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1957. Zooplankton abundance in the central Pacific, 

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King, J. E., and I. I. Ikehara. 



1956. Comparative study of food of bigeye and yel- 

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 Serv., Fish. Bull. 57:61-85. 

 Matsumoto, W. M. 



1958. Description and distribution of larvae of four 

 species of tuna in central Pacific waters. U.S. 

 Fish Wildl. Serv., Fish. Bull. 58:31-72. 



McGary, J. W. 



1955. Mid-Pacific oceanography. Part VI, Hawaii- 

 an offshore waters, December 1949-November 

 1951. U.S. Fish Wildl. Serv., Spec. Sci. Rep. Fish. 

 152, 138 p. 



Murphy, G. I., and K. C. Elliott. 



1954. Variability of longline catches of yellowfin 

 tuna. U.S. Fish Wildl. Serv., Sci. Rep. Fish. 119, 

 30 p. 



Murphy, G. I., and I. I. Ikehara. 



1955. A summary of sightings of fish schools and 

 bird flocks and of trolling in the central Pacific. 

 U.S. Fish Wildl. Serv., Spec. Sci. Rep. Fish. 154, 

 19 p. 



Murphy, G. I., and T. Otsu. 



1954. Analysis of catches of nine Japanese tuna 

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