Standardized measurements, landmarks, and meristic counts for cypriniform fishes
نویسندگان
چکیده
منابع مشابه
Developmental genetic mechanisms of evolutionary tooth loss in cypriniform fishes.
The fossil record indicates that cypriniform fishes, a group including the zebrafish, lost oral teeth over 50 million years ago. Despite subsequent diversification of feeding modes, no cypriniform has regained oral teeth, suggesting the zebrafish as a model for studying the developmental genetic basis of evolutionary constraint. To investigate the mechanism of cypriniform tooth loss, we compare...
متن کاملSelection and constraint underlie irreversibility of tooth loss in cypriniform fishes.
The apparent irreversibility of the loss of complex traits in evolution (Dollo's Law) has been explained either by constraints on generating the lost traits or the complexity of selection required for their return. Distinguishing between these explanations is challenging, however, and little is known about the specific nature of potential constraints. We investigated the mechanisms underlying t...
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Within the project “Corpus grammar” (Korpusgrammatik) at the Institute for the German Language (Institut für Deutsche Sprache, IDS) in Mannheim, techniques and tools are developed for the description of grammatical phenomena based on analyses of very large morphosyntactically annotated corpora. The goal of the project is a corpus-based grammar that captures variations of grammatical structure i...
متن کاملMorphological Variability of the Aspius aspius taeniatus (Eichwald, 1831) in the Southern Caspian Sea Basin
Traditional morphometric measurements and meristic counts were used to investigate the hypothesis of population fragmentation of Mash mahi, Aspius aspius taeniatus (Eichwald, 1831) among two fishing areas in southern Caspian Sea basin(Tonekabon:32 specimens and Sari:34 specimens ). Univariate analysis of variance showed significant differences between the means of the two groups for 12 out of...
متن کاملMorphological Variability of the Aspius aspius taeniatus (Eichwald, 1831) in the Southern Caspian Sea Basin
Traditional morphometric measurements and meristic counts were used to investigate the hypothesis of population fragmentation of Mash mahi, Aspius aspius taeniatus (Eichwald, 1831) among two fishing areas in southern Caspian Sea basin(Tonekabon:32 specimens and Sari:34 specimens ). Univariate analysis of variance showed significant differences between the means of the two groups for 12 o...
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ژورنال
عنوان ژورنال: Zootaxa
سال: 2012
ISSN: 1175-5334,1175-5326
DOI: 10.11646/zootaxa.3586.1.3