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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1983 Jun;80(11):3540–3542. doi: 10.1073/pnas.80.11.3540

Similarity principles for the biology of pelagic animals

G I Barenblatt 1, A S Monin 1
PMCID: PMC394081  PMID: 16593327

Abstract

A similarity principle is formulated according to which the statistical pattern of the pelagic population is identical in all scales sufficiently large in comparison with the molecular one. From this principle, a power law is obtained analytically for the pelagic animal biomass distribution over the animal sizes. A hypothesis is presented according to which, under fixed external conditions, the oxygen exchange intensity of an animal is governed only by its mass and density and by the specific absorbing capacity of the animal's respiratory organ. From this hypothesis a power law is obtained by the method of dimensional analysis for the exchange intensity mass dependence. The known empirical values of the exponent of this power law are interpreted as an indication that the oxygen-absorbing organs of the animals can be represented as so-called fractal surfaces. In conclusion the biological principle of the decrease in specific exchange intensity with increase in animal mass is discussed.

Keywords: biomass, respiration, fractals, oxygen absorption

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Derome J. R. Biological similarity and group theory. J Theor Biol. 1977 Mar 21;65(2):369–378. doi: 10.1016/0022-5193(77)90331-9. [DOI] [PubMed] [Google Scholar]

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