174 
Fishery Bulletin 112(2-3) 
McGowan, J. A., S. J. Bograd, R. J. Lynn, and A. J. Miller. 
2003. The biological response to the 1977 regime shift 
in the California Current. Deep Sea Res. (II Top. Stud. 
Oceanogr. ) 50:2567-2582. 
Mohn, R., and W. D. Bowen. 
1996. Grey seal predation on the eastern Scotian Shelf: 
modelling the impact on Atlantic cod. Can. J. Fish. 
Aquat. Sci. 53:2722-2738. 
Moore, S. E., and H. P. Huntington. 
2008. Arctic marine mammals and climate change: im- 
pacts and resilience. Ecol. Appl. 18:157-165. 
Nakagawa, S., J. R. Waas, and M. Miyazaki. 
2001. Heart rate changes reveal that little blue penguin 
chicks ( Eudyptula minor) can use vocal signatures to 
discriminate familiar from unfamiliar chicks. Behav. 
Ecol. Sociobiol. 50:180-188. 
Niquen, M., and M. Bouchon. 
2004. Impact of El Nino events on pelagic fisheries in 
Peruvian waters. Deep Sea Res. (II Top. Stud. Ocean- 
ogr.) 51:563-574. 
Osnes-Erie, L. D. 
1999. Food habits of common dolphin ( Delphinus delphis 
and D. capensis) off California. M.S. thesis, 56 p. San 
Jose State Univ., Moss Landing, CA. 
Overland, J., S. Rodionov, S. Minobe, and N. Bond. 
2008. North Pacific regime shifts: definitions, issues and 
recent transitions. Prog. Oceanogr. 77:92-102. 
Patterson, H. D., and R. Thompson. 
1971. Recovery of interblock information when block 
sizes are unequal. Biometrika 58:545-554. 
Peterson, W. T., and F. B. Schwing. 
2003. A new climate regime in northeast Pacific eco- 
systems. Geophys. Res. Lett. 30(17), 1896, doi: 
10. 1029/2003GL0 17528 
R Core Team. 
2012. R: a language and environment for statistical com- 
puting. R Foundation for Statistical Computing, Vienna, 
Austria. [Available from http://www.R-project.org, ac- 
cessed September 2013.] 
Rebstock, G. A. 
2002. Climatic regime shifts and decadal-scale variabil- 
ity in calanoid copepod populations off southern Califor- 
nia. Global Change Biol. 8:71-89. 
Reeves, R. R., B. S. Stewart, P. J. Clapham, and J. A. Powell. 
2002. Guide to marine mammals of the world, National 
Audibon Field Guide Series, 527 p. Alfred A Knopf, 
New York. 
Reilly, S. B. 
1990. Seasonal changes in distribution and habitat dif- 
ferences among dolphins in the eastern tropical Pacif- 
ic. Mar. Ecol. Prog. Ser. 66:1-11. 
Roemmich, D., and J. A. McGowan. 
1995. Climatic warming and the decline of zooplankton 
in the California Current. Science 267:1324-1326. 
Sette, O. E., and J. D. Isaacs. 
1960. The changing Pacific Ocean in 1957 and 1958. 
CalCOFI Rep. 7:13-217. 
Shane, S. H. 
1995. Relationship between pilot whales and Risso’s dol- 
phins at Santa Catalina Island, California, USA. Mar. 
Ecol. Prog. Ser. 123:5-11. 
Shane, S. H., R. S. Wells, and B. Wiirsig. 
1986. Ecology, behavior and social organization of the 
bottlenose dolphin: a review. Mar. Mamm. Sci. 2:34-63. 
Simmonds, M. P., and W. J. Eliott. 
2009. Climate change and cetaceans: concerns and recent 
developments. J. Mar. Biol. Assoc. U. K. 89:203-210. 
Simmonds, M. P., and S. J. Isaac. 
2007. The impacts of climate change on marine mam- 
mals: early signs of significant problems. Oryx 
41:19-26. 
Snyder, M. A., L. C. Sloan, N. S. Diffenbaugh, and J. L. Bell. 
2003. Future climate change and upwelling in the Cali- 
fornia Current. Geophys. Res. Lett. 30:1823-1827. 
Soldevilla, M. S., S. M. Wiggins, J. Calambokidis, A. Douglas, 
E. M. Oleson, and J. A. Hildebrand. 
2006. Marine mammal monitoring and habitat inves- 
tigations during CalCOFI surveys. CalCOFI Rep. 
47:79-91. 
Stenseth, N. C., A. Mysterud, G. Ottersen, J. W. Hurrell, K.-S. 
Chan, and M. Lima. 
2002. Ecological effects of climate fluctuations. Science 
297:1292-1296. 
Stockin, K. A. 
2008. Factors affecting the occurrence and demograph- 
ics of common dolphins (Delphinus sp.) in the Hauraki 
Gulf, New Zealand. Aquat. Mamm. 34:200-211. 
Stroud, R. N., C. H. Fiscus, and H. Kajimura. 
1981. Food of the Pacific white-sided dolphin, Lageno- 
rhynchus obliquidens, Dali’s porpoise, Phocoenoides 
dalli, and northern fur seal, Callorhinus ursinus, off 
California and Washington. Fish. Bull. 78:951-959. 
Sydeman, W. J., M. M. Hester, J. A. Thayer, F. Gress, P. Martin, 
and J. Buffa. 
2001. Climate change, reproductive performance and 
diet composition of marine birds in the southern Cali- 
fornia Current system, 1969-1997. Prog. Oceanogr. 
49:309-329. 
Sydeman, W. J., S. A. Thompson, J. A. Santora, J. A. Koslow, R. 
Goericke, and M. D. Ohman. 
in press. Climate-ecosystem change off southern Cali- 
fornia: seabird numerical responses and regime-specific 
predator-prey interactions. Deep Sea Res. (II Top. 
Stud. Oceanogr.). 
Tasker, M. L., P. H. Jones, T. Dixon, and B. F. Blake. 
1984. Counting seabirds at sea from ships: a review of 
methods employed and a suggestion for a standardized 
approach. The Auk 101:567-577. 
Tibby, R. B. 
1937. The relation between surface water temperature 
and the distribution of spawn of the Calfornia sar- 
dine. Calif. Fish Game 23:132-137. 
Veit, R. R., P. Pyle, and J. A. McGowan. 
1996. Ocean warming and long-term change in pelagic 
bird abundance within the California current sys- 
tem. Mar. Ecol. Prog. Ser. 139:11-18. 
Veit, R. R., J. A. McGowan, D. G. Ainley, T. R. Wahls, and P. 
Pyle. 
1997. Apex marine predator declines ninety percent 
in association with changing oceanic climate. Global 
Change Biol. 3:23-28. 
Walker, W. A., and L. L. Jones. 
1993. Food habits of northern right whale dolphin, Pa- 
cific white-sided dolphin, and northern fur seal caught 
in the high seas driftnet fisheries of the North Pacific 
Ocean, 1990. Int. N. Pac. Fish. Comm. Bull. 53:285-295. 
Wang, X. J., R. Murtugudde, and R. Le Borgne. 
2010. Climate driven decadal variations of biological 
