Morphological 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 26
standardized morphometric measurement and three out of nine meristic counts. In
discriminant function analysis (DFA), the
proportion of individuals correctly classified into their original groups was
82.1% and 61.2% for morphometric and meristic characteristics, respectively.
Clustering based on Euclidean distances among groups of centroids using an
UPGMA and also principal component analysis’ results (PCA) for morphometric and
meristic data indicated that two samples of Mash mahi were distinct from
each other in these regions, while there were a relatively high degree of
overlap between two locations.