Abstract

Based on a general equation of dynamics of the stationary age structure population, an equation relating the specific production of animals (C) and their life span (tp) was deduced: C =-lnp/(tp − t0), where tp is age of animals, the relative number of which is (p) of the population number of the initial cohort; t0 is age of animals of the younger age group in a studied sample or population. The resulting analytical model does not contradict the formerly published empirical relationship of specific production of animals to their life span and is corroborated by data on the correlation of these parameters in the mussel Mytilus galloprovincialis from the Black Sea, and other marine invertebrates.

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