CalCOFI Reports, Vol. 21, 1980
Contents
	Page
IN MEMORIAM – Elbert Halvor Ahlstrom and Carl Leavitt Hubbs	5
I. Reports, Review, and Publications
Report of the CaICOFI Committee--1980	7
Review of the Pelagic Wet Fisheries for 1978 and 1979	8
Estimate of the Spawning Biomass of the Northern Anchovy Central Subpopulation
for the 1978-79 Fishing Season. Gary D. Stauffer and Keith Parker	12
Estimate of the Spawning Biomass of the Northern Anchovy Central Subpopulation
for the 1979 80 Fishing Season.Gary D. Stauffer	17
Publications	21
II. Symposium of the CaICOFI Conference
NONCONSUMABLE LIVING RESOURCES OF THE CALIFORNIA CURRENT:
INTERACTIONS WITH CONSUMABLE RESOURCES AND THEIR EXPLOITATION
Idyllwild,California, October 31-November 2, 1978
Larval Fish and Zooplankton Community Structure. John A. McGowan and
Charles B. Miller	29
Diversity and Ecological Roles of Noncommercial Fishes in California Marine Habitats.
Michael H. Horn	37
Birds as Marine Organisms: A Review.  David G. Ainley	48
Brown Pelicans as Anchovy Stock Indicators and Their Relationships to Commercial
Fishing.  Daniel W. Anderson, Franklin Gress, Kenneth F. Mais, and Paul R. Kelly	54
Reproductive Ecology of Western Gulls and Xantus' Murrelets with Respect to Food
Resources in the Southern California Bight. George L. Hunt, Jr., and John L. Butler	62
The Pinnipeds of the California Current.  George A. Antonelis, Jr., and Clifford H. Fiscus	68
The Sea Otter In California.Daniel J. Miller	79
III. Symposium of the CaICOFI Conference   Idyllwild,California, October 23-25, 1979
CLIMATE AND ECOLOGICAL REGIMES
The Effects of Climate on Terrestrial and Marine Populations.
Sargun A. Tont and Damon A. Delistraty	85
Regimes and Events in Recent Climatic Variables. Daniel R. Cayan	90
Geophysical Estimates of Sea Surface Temperatures off North America.
Arthur V. Douglas	102
IV. Scientific Contributions
Some Relationships between Seawater Temperature and Dungeness Crab, Cancer magister,
Spawning, Egg Development, Hatching Success, and Population Fluctuations.
Paul W. Wild	115
Characters Useful in Identification of Pelagic Marine Fish Eggs. Elbert H. Ahlstrom and
H. Geoffrey Moser	121
The Fishery for Northern Anchovy, Engraulis mordax, off California and Baja
California in 1976 and 1977. John S. Sunada and Silvia Silva	132
Sexual Maturity, Batch Fecundity, Spawning Frequency, and Temporal Pattern of
Spawning for the Northern Anchovy, Engraulis mordax, during the 1979 Spawning
Season.  J. Roe Hunter and Beverly Macewicz	139
The Relation between the Distribution of Zooplankton Predators and Anchovy Larvae.
Angeles Alvarino	150
Food and Feeding of Pacific Hake Larvae, Merluccius productus, off Southern California
and Northern Baja California. Barbara Y Sumida and H. Geoffrey Moser	161
Recent Changes in the Distribution of Hake Larvae: Causes and Consequences.
Kevin M. Bailey	167
Description of the Larvae and Early Juveniles of the Pacific Butterfish, Peprilus
simillimus (Family Stromateidae). Susan D'Vincent, H. Geoffrey Moser, and
Elbert H. Ahlstrom	172
Distribution, Abundance, and Recruitment of Soft Bottom Rockfishes (Scorpaenidae:
Sebastes) on the Southern California Mainland Shelf. Alan J. Mearns, M. James
Allen, Michael D. Moore, and Marjorie J. Sherwood	180
Nutrients and Phytoplankton Community Composition in Southern California
Coastal Waters. Gary S. Kleppel	191
Trophic Structure and Pollutant Concentrations in Marine Ecosystems of Southern
California.David R. Young, Alan J. Mearns, Tsu Kai Jan, Theadore C. Heesen,
Michael D. Moore, Robert P. Eganhouse, G. Patrick Hershelman, and
Richard W. Gossett	197
Free Fall Particle Counter for Ocean Surveys. Reuben Lasker and John C. Brown	207
Euphausiids in the Gulf of California -- the 1957 Cruises. E. Brinton and A. W. Townsend	211