age structure
the number or percentage of individuals in each age class of a population

Dictionary of ichthyology. 2009.

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  • age structure — Any structure that can be used for age determination; the most common are scales, spines, fin rays, otoliths, vertebrae, operculum, and cleithrum …   Fisheries — dictionary

  • Age adjustment — In Epidemiology, Age adjustment, also called age standardisation, is a technique used to better allow populations to be compared when the ages of the populations are quite different (for example, the U.S. vs. Mexico). To adjust for age, a direct… …   Wikipedia

  • age distribution — the number or percentage of individuals in each age class of a population; age structure …   Dictionary of ichthyology

  • age frequency — a breakdown of the different age groups of a kind of fish in a population or sample. Also called age structure …   Dictionary of ichthyology

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  • age standardized rate — noun The incidence rate of a particular disease in a population if that population had a standard age structure. Syn: ASR …   Wiktionary

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  • Age class structure — in fisheries and wildlife management is a part of population assessment. Age can be determined by counting growth rings in fish scales, otoliths, cross sections of fin spines for species with thick spines such as triggerfish, or teeth for a few… …   Wikipedia

  • Age of Empires — is a series of computer video games developed by Ensemble Studios and published by Microsoft Game Studios. The first title of the series was Age of Empires , released in 1997. Since then, seven titles and three spin offs have been released. The… …   Wikipedia

  • STRUCTURE ET ART — La métaphore architecturale occupe une place relativement insoupçonnée dans l’archéologie de la pensée structurale qu’elle aura fournie de modèles le plus souvent mécanistes, fondés sur la distinction, héritée de Viollet le Duc, entre la… …   Encyclopédie Universelle

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