172 
Fishery Bulletin 106(2) 
Distribution, abundance and feeding ecology of juvenile 
salmon. Mar. Ecol. Prog. Ser. 299:33-44. 
Doyle, M. J. 
1995. The El Nino of 1983 as reflected in the ich- 
thyoplankton off Washington, Oregon, and north- 
ern California. Can. Spec. Publ. Fish. Aquat. Sci. 
121:161-180. 
Doyle, M. J., K. L. Mier, M. S. Busby, and R. D. Brodeur. 
2002. Regional variations in springtime ichthyoplankton 
assemblages in the Northeast Pacific Ocean. Prog. 
Oceanogr. 53:271-281. 
Doyle, M. J., W. W. Morse, and A. W. Kendall Jr. 
1993. A comparison of larval fish assemblages in the 
temperate zone of the Northeast Pacific and Northwest 
Atlantic Oceans. Bull. Mar. Sci. 53:588-644. 
Emmett, R. L., P. J. Bentley, and M. H. Schiewe. 
1997. Abundance and distribution of northern anchovy 
eggs and larvae ( Engraulis mordax) off the Oregon 
coast, mid 1970’s vs. 1994 and 1995. In Forage fishes 
in marine ecosystems, p. 505-508. Alaska Sea Grant 
College Program, Fairbanks, AK. 
Emmett, R. L., R. D. Brodeur, T. W. Miller, S. S. Pool, P. J. Bent- 
ley, G. K. Krutzikowsky, and J. McCrae. 
2005. Pacific sardine ( Sardinops sagax) abundance, 
distribution and ecological relationships in the Pacific 
Northwest. Calif. Coop. Oceanic Fish. Invest. Rep. 
46:122-143. 
Emmett, R. L., G. K. Krutzikowsky, and P. J. Bentley. 
2006. Abundance and distribution of pelagic piscivorous 
fishes in the Columbia River plume during spring/early 
summer 1998-2003: relationship to oceanographic con- 
ditions, forage fishes, and juvenile salmonids. Prog. 
Oceanogr. 68:1-26. 
Emmett, R. L., R. Llanso, J. Newton, R. Thom, M. Hornberger, 
C. Morgan, C. Levings, A. Copping, and P. Fishman. 
2000. Geographic signatures of North American west 
coast estuaries. Estuaries 26(61:765-792. 
Farris, D. A. 
1961. Abundance and distribution of eggs and larvae and 
survival of jack mackerel (Trachurus symmetricus). Fish. 
Bull. 61:242-279. 
Francis, R. C., S. R. Hare, A. B. Hollowed, and W. S. Wooster. 
1998. Effects of interdecadal climate variability on the 
ocean ecosystem of the NE Pacific. Fish. Oceanogr. 
7:1-21. 
Goericke, R. E., E. Venrick, A. Mantyla, S. J. Bograd, F. B. 
Schwing, A. Huyer, R. L. Smith, P. A. Wheeler, R. Hooff, W. T. 
Peterson, F. Chavez, C. Collins, B. Marinovic, N. Lo, G. Gaxi- 
ola-Castro, R. Durazo, K. D. Hyrenbach, and W. J. Sydeman. 
2005. The state of the California Current, 2004-2005: 
still cool? Calif. Coop. Oceanic Fish. Invest. Rep. 
46:32-71. 
Govoni, J. J. 
1997. The association of the population recruitment of 
gulf menhaden, Brevoortia patronus, with Mississippi 
River discharge. J. Mar. Syst. 12:101-108. 
Govoni, J. J., and C. B. Grimes. 
1992. The surface accumulation of larval fishes by 
hydrodynamic convergence within the Mississippi plume 
front. Cont. Shelf Res. 122:1265-1276. 
Grimes, C. B., and J. H. Funucane. 
1991. Spatial distribution and abundance of larval and 
juvenile fish, chlorophyll and macrozooplankton around 
the Mississippi River discharge plume, and the role of 
the plume in fish recruitment. Mar. Ecol. Prog. Ser. 
75:109-119. 
Hickey, B. M. 
1997. The response of a steep-sided, narrow canyon 
to time-variable wind forcing. J. Phys. Oceanogr. 
27:697-726. 
Hickey, B. M., and N. S. Banas. 
2003. Oceanography of the U.S. Northwest Pacific coast 
and estuaries with application to coastal ecology. Es- 
tuaries 26:1010-1031. 
Hooff, R. C., and W. T. Peterson. 
2006. Copepod biodiversity as an indicator of changes 
in ocean and climate conditions of the northern Cal- 
ifornia Current ecosystem. Limnol. Oceanogr. 51: 
2607-2620. 
Hunter, J. R., and N. C.-H. Lo. 
1993. Ichthyoplankton methods for estimating fish bio- 
mass: Introduction and terminology. Bull. Mar. Sci. 
53:723-727. 
Jones, K. K., C. A. Simenstad, D. L. Higley, and D. L. Bottom. 
1990. Community structure, distribution, and standing 
stock of benthos, epibenthos, and plankton in the Colum- 
bia River estuary. Prog. Oceanogr. 25:211-241. 
Krebs, C. J. 
1989. Ecological methodology, 654 p. Harper Collins 
Pubis., New York, NY. 
Kruskal, J. B. 
1964. Nonmetric multidimensional scaling: a numerical 
method. Psychomet. 29:1-27. 
Lasker, R., ed. 
1985. An egg production method for estimating spawn- 
ing biomass of pelagic fish: application to the northern 
anchovy ( Engraulis mordax ). NOAA Tech. Rep. NMFS 
36, 99 p. 
Logerwell, E. A., N. Mantua, P. Lawson, R. C. Francis, and 
V. Agostini. 
2003. Tracking environmental processes in the coastal 
zone for understanding and predicting Oregon coho 
(Oncorhynchus kisutch ) marine survival. Fish. Ocean- 
ogr. 12:554-568. 
Lohan, M. C., and K. W. Bruland. 
2006. Importance of vertical mixing for additional sources 
of nitrate and iron to surface waters of the Columbia 
River plume: Implications for biology. Mar. Chem. 
98:260-273. 
MacCall, A. ■).. and G. D. Stauffer. 
1983. Biology and fishery potential of jack mackerel 
(Trachurus symmetricus ). Calif. Coop. Oceanic Fish. 
Invest. Rep. 24:46-56. 
Mantua, N. J., S. R. Hare, Y. Zhang, J. M. Wallace, and R. C. 
Francis. 
1997. A Pacific interdecadal climate oscillation with 
impacts on salmon production. J. Am. Meterol. Soc. 
78:1069-1079. 
Matarese, A. C., A. W. Kendall Jr., D. M. Blood, and B. M. Vinter. 
1989. Laboratory guide to early life history stages of 
Northeast Pacific fishes. NOAA Tech. Rep. NMFS 80, 
652 p. 
Mather, P. M. 
1976. Computational methods of multivariate analy- 
sis in physical geography, 532 p. J. Wiley and Sons, 
London, U.K. 
Morgan, C. A., A. DeRobertis, and R. W. Zabel. 
2005. Columbia River plume fronts. I. Hydrography, zoo- 
plankton distribution, and community composition. Mar. 
Ecol. Prog. Ser. 299:19-31. 
Moser, H. G., ed. 
1996. The early stages of fishes in the California cur- 
