SOUTAR and ISAACS: ABUNDANCE OF PELAGIC FISH 



former is susceptible to scrutiny through the 

 analysis of the projected fish populations through 

 time. The latter is no less susceptible, for the sed-  

 iments contain a rich record of fossil microplank- 

 ton which promises to further define oceanic con- 

 ditions off the Californias in relation to pelagic- 

 fish productivity. 



ACKNOWLEDG MENTS 



This report is a contribution of the Marine Life 

 Research Group, Scripps Institution of Oceanog- 

 raphy. Gratitude is expressed to Peter A. Grill for 

 his statistical calculations, computer graphics, 

 and patience. The support of the National Science 

 Foundation (GA-27306) is gratefully acknow- 

 ledged. 



REFERENCES 



Ahlstrom, E. H. 



1969. Distributional atlas of fish larvae in the California 



Current region: jack mackerel, Trachurus symmetricus, 



and Pacific hake, Merluccius productus, 1951 through 



1966. Calif. Coop. Oceanic Fish. Invest. Atlas 11:88-99. 



Brongersma-Sanders, M. 



1957. Mass mortality in the sea./n J. W. Hedgpeth (editor), 

 Treatise on marine ecology and paleoecology, p. 

 941-1010. Geol. Soc. Am. Mem. 67, Vol. 1. 

 Clark, F. N., and J. B. Phillips 



1952. The northern anchovy (Engraulis mordax mordax) in 

 the Cahfomia fishery. Calif. Fish Game 38:189-207. 

 D'Anglejan-Castillon, B. 



1965. Marine phosphorite deposits of Baja California, Mex- 

 ico, present environment and history. Ph.D. Thesis, 

 Univ. Calif., San Diego, Scripps Inst. Oceanogr. 

 David, L. R. 



1943. Miocene fishes of southern California. Spec. Pap. 

 Geol. Soc. Am. 43:1-193. 

 Emery, K. O. 



1960. The sea off Southern California. A modern habitat of 

 petroleum. John Wiley & Sons, N.Y., 366 p. 



Fitch, J. E. 



1952. The decline of the pacific mackerel fishery. Calif. 

 Fish Game 38:381-403. 

 Fritts, H.C. 



1972. Tree rings and climate. Sci. Am. 226(5):92-100. 

 Hulsemann, J., AND K. O. Emery. 



1961. Stratification in recent sediments of Santa Barbara 

 Basin as controlled by organisms and water character. J. 

 Geol. 69:279-290. 



Kaplan, I. R.. and S. C. Rittenberg. 



1963. Basin sedimentation and diagenesis. In M. N. Hill 

 (editor), The sea. Vol. 3, p. 583-619. John Wiley and Sons, 

 NT. 

 Knutson, D. W., R. W. Buddemeier, and S. V. Smith. 



1972. Coral chronometers: seasonal growth bands in reef 

 corals. Science (Wash., D.C.) 177:270-272. 



KoiDE, M., A. SouTAR, and E. D. Goldberg. 



1972. Marine geochronology with Pb-210. Earth Planet. 

 Sci. Lett. 14:442-446. 



Koide, M., K. W. Bruland, and E. D. Goldberg. 



1973. Th-228/Th-232 and Pb-210 geochronologies in 

 marine and lake sediments. Cjeochim. Cosmochim. Acta 

 37:1171-1187. 



Krishnaswami, S., D. Lal, B. S. Amin, and A. Soutar. 



1973. Geochronological studies in Santa Barbara Basin: 

 Fe-55 as a unique tracer for particulate settling. Limnol. 

 Oceanogr. 18:763-770. 



MuROzuMi, M., T. J. Chow, and C. Patterson. 



1969. Chemical concentrations of pollutant lead aerosols, 

 terrestrial dusts and sea salts in Greenland and Antarctic 

 snow strata. Geochim. Cosmochim. Acta 33:1247-1294. 



Murphy, G. I. 



1966. Population biology of the Pacific sardine (Sardinops 

 caerulea). Proc. Calif. Acad. Sci. 34:1-84. 



Panella, G., C. MacClintock, and M. N. Thompson. 



1968. Paleontological evidence of variations in length of 

 synodic month since Late Cambrian. Science (Wash., 

 DC.) 162:792-796. 



SCHUMM, S. A. 



1969. Geomorphic implications of climatic changes. /« R. J. 

 Chorley (editor), Water, earth, and man, p. 525-534. 

 Methuen and Co., Ltd., Lond. 



Seibold, E. 



1958. Jahreslagen in sedimenten der mittleren Adria. 

 Geol. Rundsch. 47:100-117. 



Sette, O. E. 



1969. A perspective of a multi-species fishery. Calif. Coop. 

 Oceanic Fish. Invest. Rep. 13:81-87. 



Sholkovitz, E. R. 



1973. Interstitial water chemistry of the Santa Barbara 

 Basin sediments. Geochim. Cosmochim. Acta 

 37:2043-2073. 



Smith, P. E. 



1972. The increase in spawning biomass of northern an- 

 chovy, Engraulis mordax. Fish. Bull., U.S. 70:849-874. 



Smith, P. E., E. H. Ahlstrom, and H. D. Casey. 



1970. The saury as a latent resource of the California 

 Current. Calif. Coop. Oceanic Fish. Invest. Rep. 

 14:88-100. 



Soutar, A. 



1967. The accumulation offish debris in certain California 

 coastal sediments. Calif. Coop. Oceanic Fish. Invest. Rep. 

 11:136-139. 



Soutar, A., and J. D. Isaacs. 



1969. History offish populations inferred from fish scales in 

 anaerobic sediments off California. Calif. Coop. Oceanic 

 Fish. Invest. Rep 13:63-70. 



Vrooman. a. M., and P. E. Smith. 



1971. Biomass of the subpopulations of northern anchovy 

 Engraulis mordax Girard. Calif. Coop. Oceanic Fish. In- 

 vest. Rep. 15:49-51. 



Wallin, O. 



1957. On the growth structure and developmental physiol- 

 ogy of the scale of fishes. Inst. Freshwater Res. Drottning- 

 holm. Rep. 38:385-447. 



273 



