Table 6. — Comparison of major billfish foods in 1970 with 

 those for 1967-1969 (n = no. of stomachs with food). 







STRIPED MARLIN 











1967-1969 







1970 





Rank Species % 



Vol. 



% Vol. Species 



San Diego 





n = 116 







n = 20 





1. 



Engraulis 







Trachurus 







mordax 



60 



62 



symmetricus 





2. 



Trachurus 







Atherinopsis 







symmetricus 



27 



16 



californiensis 





3. 



Cololabis 







Cololabis 







saira 



5 



8 



saira 



Buena Vista 





n = 303 







n = 37- 





1. 



Squid 



49 



39 



Etrumeus teres 





2. 



Etrumeus teres 



30 



24 



Squid 





3. 



Scomber 







Eulhynnus 







japonicus 



7 



17 



lineatus 





4. 







6 



Lagocephalus 

 lagocephalus 



Mazatlan 





n = 14 







n = 4 





I. 



Squid 



63 



79 



Mugil cephalus 





2. 



Argonaula sp. 



7 



12 



Chaetodon sp. 





3. 



Batistes sp. 



7 



6 Argonauta sp. 





4. 



Fistularia sp. 



5 











SAILF1SH 





Buena Vista 





n = 14 







n = 22 





1. 



Squid 



35 



24 



Etrumeus teres 





2. 



Etrumeus teres 



29 



21 



Fistularia sp. 





3. 



Fistularia sp. 



22 



14 



Euthynnus 

 lineatus 





4. 



Naucrates 



7 



13 Auxis 







ductor 







thazard 







BLUE MARLIN 



Buena Vista 



1. 



No Data 





39 



n = 8 

 Scombrids 

 (unidentified) 





2. 







36 Auxis thazard 





3. 







19 



Euthynnus 

 lineatus 



Douglas Evans, Stewart Luttich, Howard Ness, and 

 David Tolhurst. Roger Cressey identified Phil- 

 ichthys xiphii and Ernest Iversen identified the 

 parasites Pandarus sp. and Nercila sp. 



LITERATURE CITED 



BROCK, V.E. 



1954. Some aspects of the biology of the aku, Katsuwonus 

 pelamis, in the Hawaiian Islands. Pac. Sci. 8:94-104. 

 CLARK. F.N. 



1925. The life history of Leuresthes tenuis, an atherine fish 

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 1929. The life history of the California jack smeh, Atherinop- 



sis californienis. Calif. Dep. Fish. Game, Fish Bull. 16, 

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 1934. Maturity of the California sardine, (Sardina caerulea), 

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 DESYLVA, DP. 



1957. Studies on the age and growth of the Atlantic sailfish, 

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EVANS, D.H., and P.G. WARES. 



1972. Food habits of striped marlin and sailfish off Mexico 

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1960. Handbook of Hawaiian fishes. Univ. Hawaii Press, 

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 HICKLING, C.F., and E. RUTENBERG. 



1936. The ovary as an indicator of the spawning period in 

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 HOAR, W.S., and D.J. RANDALL. 



1969. Fish physiology. Vol. III. Reproduction and growth, 

 bioluminescence, pigments, and poisons. Academic Press, 

 N.Y.. 485 p. 

 HONMA, M.. and T. KAMIMURA. 



1958. A population study on the so-called Makajiki (striped 

 marlin) of both Northern and Southern Hemispheres of the 

 Pacific. II. Fishing conditions in the Southern Hemis- 

 phere. [InJap., Engl, summ.] Rep. NankaiReg. Fish. Res. 

 Lab. 8:12-21. 



JUNE, F.C. 



1953. Spawning of yellowfin tuna in Hawaiian waters. U.S. 

 FishWildl. Serv., Fish. Bull. 54:47-64. 

 KUME, S.. and J. JOSEPH. 



1969a. The Japanese longline fishery for tunas and billfishes 

 in the eastern Pacific Ocean east of 130°W, 1964-1966 [In 

 Span, and Engl.] Bull. Inter-Am. Trop. Tuna Comm. 

 13:277-418. 

 1969b. Size composition and sexual maturity of billfish 

 caught by the Japanese longline fishery in the Pacific 

 Ocean east of 130°W. [In Engl.] Bull. Far Seas Fish. Res. 

 Lab. (Shimizu) 2:115-162. 

 KUME, S., and M.B. SCHAEFER. 



1966. Studies on the Japanese long-line fishery for tuna and 

 marlin in the eastern tropical Pacific Ocean during 1963. 

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 11:103-170. 



LA MONTE. F.R. 



1958. Notes on the alimentary, excretory, and reproductive 

 organs of Atlantic Makaira. Bull. Am. Mus. Nat. Hist. 

 114(5):396-401. 

 MERRETT. N.R. 



1970. Gonad development in billfish (Istiophoridae) from the 

 Indian Ocean. J. Zool. 160:355-370. 



1971. Aspects of the biology of billfish (Istiophoridae) from 

 the equatorial western Indian Ocean. J. Zool. 163:351-395. 



MOSER. H.G. 



1967. Seasonal histological changes in the gonads of Sebas- 

 todes paucispinis. Ayres. an ovoviviparous teleost (Fam- 

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NAKAMURA, H. 



1932. The ripe eggs of the sailfish, Istiophorus orientalis, 

 (Temminck and Schlegel). [In Jap.] Zool. Mag. 

 44:244-245. 



100 



