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Biomorphometry and growth rate of the sterlet (Acipenser ruthenus) in the Czech Republic
 Prokeš, Miroslav ; Baruš, Vlastimil ; Peňáz, Milan ; Baránek, V. ; Ošanec, J. ; Šutovský, I.
Two samples of 40 and 30 juvenile specimens of the sterlet (Acipenser ruthenus Linnaeus, 1758) reared in special aquacultural facilities in the Czech Republic (and originating from Russia), and in the Slovak Republic (originating in the Danube Slovak section) were biometrically analysed and compared. Specimens did not differ in the maximum-minimum range of their meristic characters from the description presented for sterlet, but differ significantly in mean values in 4 (of 6) meristic and 14 (of 27) metric characters compared. On the basis of UPGMA it was found that the sample of sterlet from the CR, clusters well with other samples of the sterlet population. On the basis of PCA affinities of sterlet samples with hybrid samples of bester (A. ruthenus x Huso huso) were found. In comparative rearing of juvenile sterlet and Siberian sturgeon (Acipenser baerii) under identical experimental condition intensive growth rates in the Siberian sturgeon were found.
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