BALANCE BETWEEN LIVING AND DEAD MATTER 547 



relationships as a "parabalance" indicating by this term that a 

 stable balance does not exist but that the regularities mentioned 

 above suggest a relatively constant population as a result of the 

 environmental conditions. It will be a long time before we can 

 draw charts of the total biomass in any one ocean for each month 

 of the year. Indeed, even when we do this, we must always re- 

 member the heterogeneous conditions and their dynamics. 



REFERENCES 



Bogorov, B. G. 1957. Regularities of plankton distribution in North-West 

 Pacific. Proc. UNESCO Symposium Physical Oceanography, 

 UNESCO and Japanese Society of Botanical Science, Tokyo, 1955, 

 pp. 260-276. 



• . 1958. Perspectives in the study of seasonal changes of plankton 



and of the number of generations at different latitudes. In Perspec- 

 tives in Marine Biology, A. A. Buzzati-Traverso, Editor, pp. 145-158. 

 University of California Press, Berkeley, Calif. 



Braarud, T., K. R. Gaarder, and J. Gr(z(ntved. 1953. The phytoplankton 

 of the North Sea and adjacent waters in May 1948. Rapp. Proc. 

 verb: Conseil permanent intern, exploration mcr, 133, 1-87. 



Conover, R. J. 1959. Regional and seasonal variation in the respiratory 

 rate of marine copepods. Limnol. & Oceanog., 4 (3), 259-268. 



Gushing, D. H. 1959. The seasonal variation in oceanic production as a 

 problem in population dynamics. /. conseil: Conseil permanent 

 intern, exploration mer, 24, 455-464. 



. 1959. On the nature of production in the sea. Fishery Invest., 



Ser. II, 22, 1-37. 



Dotterweich, H. 1940. Das Biologische Cleichgezuicht. Gustav Fischer, 

 Jena. 



Friederichs, K. 1930. Grundfragen und Gesetzmdssigkeiten der land- und 

 forstwissenschaftlicken Zoologie, insbesondere der Entomologie. P. 

 Parey, Berlin. 



Gessner, Fr. 1949. Der Chlorophyllgehalt im See und seine photosyn- 

 thetische Valenz als geophysikalisches Problem. Schweiz. Z. Hydrol., 

 11, 378-410. 



Harvey, H. W. 1955. The Chemistry and Fertility of Sea Waters. Cam- 

 bridge University Press, Cambridge, England. 



Hentschel, E. 1936. Allgemeine Biologic des Sudatlantischen Ozeans. 

 Wiss. Ergeb. Deutschen Atlantischen Exped. auf Meteor, 1925-1927. 

 Vol. 11, Walter de Gruyter, Berlin. 



Jannasch, H. W. 1954. Okolog. Unters. d. planktischen Bakterienflcra 

 im Golf V. Neapel. Naturwissenschaften, 41. 



