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Individual ontogenetic trajectories and ontogenetic channels of three forms of large African barbs (Barbus intermedius complex). Analysis of experimental data

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Abstract

Changes of external morphological characters in three forms (morphotypes) of African barbs from Lake Tana (Ethiopia) belonging to Barbus intermedius complex were traced using electronic tags. It was shown that within age interval from two to four years individual ontogenetic allometric curves often cannot be described with a single power function equation. Individual ontogenetic trajectories in the principal components space within this interval strongly differ in shape meandering within ontogenetic channels outlined on the basis of cross-sectional data. Morphological differences between siblings are found that do not allow to classify some of them with the morphotype of their parents.

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Correspondence to M. V. Mina.

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Mina, M.V., Shkil, F.N. & Abdissa, B. Individual ontogenetic trajectories and ontogenetic channels of three forms of large African barbs (Barbus intermedius complex). Analysis of experimental data. J. Ichthyol. 50, 421–429 (2010). https://doi.org/10.1134/S0032945210060019

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  • DOI: https://doi.org/10.1134/S0032945210060019

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