ANTONELIS ET AL.: SPRING AND SUMMER PREY OF CALIFORNIA SEA LIONS 



vided valuable assistance during the entire 1978 field 

 season. Advice and aid during statistical analysis of 

 the data were given by J. Breiwick, R. Kappenman, R. 

 Ryel, and A. York of NMFS Northwest and Alaska 

 Fisheries Center, Seattle, Wash. 



The otoliths were identified by the late J. Fitch of 

 Long Beach, Calif., and the octopus beaks by F. E. 

 Hochberg of Santa Barbara Museum of Natural His- 

 tory, Santa Barbara, Calif. Additional consultation 

 and assistance in our efforts to understand the forag- 

 ing ecology of the California sea lion were given by K. 

 Bailey of NMFS Northwest and Alaska Fisheries 

 Center, Seattle, Wash; E. Knaggs, and K. Mais of 

 California Fish and Game, Long Beach, Calif; A. 

 Mearns and M. Perez of NMFS Northwest and 

 Alaska Fisheries Center, Seattle, Wash.; and P. 

 Smith and G. Stauffer of NMFS Southwest Fisheries 

 Center, La Jolla, Calif. 



The senior author (Antonelis) presented a portion 

 of this paper at the 4th Biennual Conference on the 

 Biology of Marine Mammals in San Francisco, 

 December 1981. 



LITERATURE CITED 



AlNLEY, D. G., H. R. HUBER, AND K. M. Bailey. 



1982. Population fluctuations of California sea lions and the 

 Pacific whiting fishery off central California. Fish. Bull., 

 U.S. 80:253-258. 

 Antonelis, G. A., Jr. and C. H. Fiscus. 



1980. The pinnipeds of the California current. Calif. Coop. 

 Oceanic Fish. Invest. Rep. 21:68-78. 



Bailey, K. M., and D. G. Ainley. 



1982. The dynamics of California sea lion predation on 

 Pacific whiting. Fish. Res. 1:163-176. 

 Bailey, K. M., R. C. Francis, and P. R. Stevens. 



1982. The life history and fishery of Pacific whiting, Merluc- 

 cius productus. Calif. Coop. Oceanic Fish. Invest. Rep. 

 23:81-98. 

 Best, E. A., and M. S. Oliphant. 



1965. Evaluation of the fish resources of the Pt. Arguello 

 Area. Marine Resources of the Pt. Arguello Area, Part 

 II. Bur. Commer. Fish. Contract 14-17-001-995, as part 

 of agreement AT (49-7)-2428 for the Div. Biol, and Med.. 

 U.S. At. Energy Comm., 129 p 

 Bowlby, C. E. 



1981. Feeding behavior of pinnipeds in the Klamath River, 

 northern California. M. A. Thesis, Humboldt State Univ., 

 Eureka, Calif., 74 p. 



Briggs, K . T., and C. W. Davis. 



1972. A study of predation by sea lions on salmon in Mon- 

 terey Bay. Calif. Fish Game 58:37-43. 

 Dark, T. A. 



1975. Age and growth of Pacific hake, Merluccius produc- 

 tus. Fish. Bull., U.S. 73:336-355. 

 Everitt, R. D., P. J. Gearin, J. S. Skidmore, and R. L. 

 DeLong. 



1981. Prey items of harbor seals and California sea lions in 

 Puget Sound, Washignton. Murrelet 62:83-86. 



Fields, W. G. 



1965. The structure, development, food relations, reproduc- 

 tion, and life history of the squid Loligo opalescens 

 Berry. Calif. Dep. Fish Game, Fish Bull. 131:1- 

 108. 



Fienberg, S. E. 



1977. The analysis of cross-classified categorical data. 

 Mass. Inst. Technol. Press, Cambridge, Mass., 151 p. 

 Fiscus, C. H., and G. A. Baines. 



1966. Food and feeding behavior of Steller and California sea 

 lions. J. Mammal. 47:195-200. 



FITCH, J. E., AND R. J. LAVENBERG. 



1968. Deep-water teleostean fishes of California. Univ. 

 Calif. Press, Berkeley, 155 p. 

 Hollander, M., and D. A. Wolfe. 



1973. Nonparametric Statistical Methods. John Wiley and 

 Sons, Inc., N.Y., 503 p. 

 Jameson, R. J., and K. W. Kenyon. 



1977. Prey of sea lions in the Rogue River, Oregon. J. Mam- 

 mal. 58:672. 

 Jones, R. E. 



1981. Food habits of smaller marine mammals from northern 

 California. Calif. Acad. Sci. Proc. 42:409-433. 

 Kashiwada, J., C. W. Recksiek, and K. A. Karpov. 



1979. Beaks of the market squid, Loligo opalescens, as tools 

 for predator studies. Calif. Coop. Oceanic Fish. Invest. 

 Prog. Rep. 20:65-69. 



LE BOEUF, B. J., AND M. L. BONNELL. 



1980. Pinnipeds of the California Islands: Abundance and 

 Distribution. In D. M. Power (editor), The California 

 Islands: Proceedings of a Multidisciplinary Symposium, 

 p. 475-493. Santa Barbara Museum of Natural History, 

 Santa Barbara, Calif. 



Mais. K. F. 



1981. Age-composition changes in the anchovy, Engraulis 

 mordax, central population. Calif. Coop. Oceanic Fish. 

 Invest. Prog. Rep. 22:82-87. 



Miller, L .K. 



1978. Energetics of the northern fur seal in relation to 

 climatic and food resources of the Bering Sea. Mar. Mam- 

 mal Comm., Wash., D.C., 32 p. (Available U.S. Dep. Com- 

 mer., Natl. Tech. Inf. Serv., as PB-275296.) 



Morejohn, G. V., J. T. Harvey, and L. T Krasnow. 



1978. The importance of Loligo opalescens in the food web of 

 marine vertebrates in Monterey Bay, California. In C. W. 

 Recksiek and H. W. Frey (editors), Biological, 

 oceanographic and acoustic aspects of the market squid, 

 Loligo opalescens. Berry. Calif. Dep. Fish Game, Fish 

 Bull. 169:67-97. 



Morse, D. H. 



1980. Behavioral mechanisms in ecology. Harvard Univ. 

 Press, Cambridge, Mass., 383 p. 



MOYLE, P. B., AND J. J. CECH, Jr. 



1982. Fishes: an introduction .to ichthyology. Prentice-Hall, 

 Englewood Cliffs, N.J., 593 p. 



Pacific Fishery Management Council. 



1978. Implementation of northern anchovy fishery manage- 

 ment plan, Book 2. Fed. Reg. 43(141):31651-31879. 

 Perrin, W. F., R. R. Warner, C. H. Fiscus, and D. B. Holts. 



1973. Stomach contents of porpoise, Stenella spp., and 

 yellowfin tuna, Thunnus albacares, in mixed-species 

 aggregations. Fish. Bull., U.S. 71:1077-1092. 

 Peterson, R. S., and G. A. Bartholomew. 



1967. The natural history and behavior of the California sea 

 lion. Am. Soc. Mammal., Spec. Publ. 1, 79 p. 



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