Morphometry of barbel of Lake Tana, Ethiopia: Multivariate ontogenetic channels

被引：0
|
作者：
Mina, MV [1 ]
Mironovsky, AN [1 ]
Dgebuadze, YY [1 ]
机构：
[1] RUSSIAN ACAD SCI,AN SEVERTZOV INST ECOL & EVOLUT,MOSCOW 117071,RUSSIA
来源：
FOLIA ZOOLOGICA | 1996年 / 45卷
关键词：
large African Barbus; Lake Tana morphotypes; skull morphometry; ontogenetic channels; early development;
D O I：
暂无
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Representative of eight morphotypes of the Lake Tana barbel were studied. Estimates of 14 measurements of the skull subjected to principal component analysis formed scatterplots in the space of PC1 and PC2, depicting ontogenetic pathways of individuals in the given character space (''ontogenetic channels''). The ontogenetic channels of ''acute'' and ''big mouth big-eye'' are separated from those of other morphotypes already in the first year of fish life. The channel of,,big mouth-small eye'' is superimposed with that of ''big mouth-big eye''. ''White hunch'', ''dark'', ''barbel'' and ''carplike'' derive from ''intermedius'' late in ontogeny in age interval 3 - 6 years.
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页码：109 / 116
页数：8
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