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Hydrobiological Journal
SJR: 0.217 SNIP: 0.575 CiteScore™: 0.24

ISSN 印刷: 0018-8166
ISSN オンライン: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v41.i4.90
pages 79-84

A Simple Model of Species Structure in a Competitive Fish Community

V. V. Sukhanov
Institute of Sea Biology, Far-Eastern Division of the Russian Academy of Sciences Vladivostok, Russia

要約

A mathematical model is proposed for describing the species structure of a competitive community inhabiting some stochastically variable environment. The species list of this community, rearranged according to a decrease in species abundance, has to be described by decreasing geometrical series. According to the hypothesis of stochastic remainder, when all competing species use the resource by the optimal way, then the coefficient of this geometrical series should be equal to the value q = exp (−1) = 0.368. The case study of Pacific salmon species structure is presented.


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