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首页> 外文期刊>Journal of Ichthyology >Phenetic Relationships and Probable Ways of Morphological Diversification of the African Large Barbs {Barbus intermedins Complex) in Lake Tana (Ethiopia)
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Phenetic Relationships and Probable Ways of Morphological Diversification of the African Large Barbs {Barbus intermedins Complex) in Lake Tana (Ethiopia)

机译:塔纳湖(埃塞俄比亚)的非洲大倒钩(Barbus intermedins Complex)的物候关系和形态多样化的可能方式

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摘要

29 quantitative and 18 qualitative skull characters were studied in the African large barbs {Barbus intermedius complex) from Lake Tana (Ethiopia). Based on results of principle components analysis phenetic relationships of 12 morphotypes were assessed. External features diagnostic of the morphotypes were found in individuals substantially different in the skull characters. The obtained data along with the data on morphological diversity of large barbs from Ethiopia beyond the Lake Tana basin suggestorigination of the Lake Tana complex of forms from a complex of forms that existed in the upper reaches of the Blue Nile before the lake came into being, and the extant morphotypes of the Lake Tana barbs originated from three or four forms that composedthe ancestral riverine local complex.
机译:在来自塔纳湖(埃塞俄比亚)的非洲大倒钩(Barbus intermedius complex)中研究了29个定量和18个定性的头骨特征。基于主成分分析的结果,评估了12种形态型的表型关系。在颅骨特征明显不同的个体中发现了诊断形态型的外部特征。获得的数据以及塔纳湖盆地以外埃塞俄比亚的大倒钩的形态多样性数据,暗示了塔纳湖复杂形态的起源是从青尼罗河上游形成之前存在于青尼罗河上游的形态复杂中得出的,塔纳湖倒钩的现存形态型起源于构成祖先河系局部复合体的三种或四种形式。

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