A. O. Zolotova, Yu. Ph. Kartavtsev - Identification of Three Far Eastern Redfin Species of the Genus Pseudaspius (Osteichthyes, Cyprinidae) Based on Multidimensional Analysis of Measurable Characters

BIOLOGIYA MORYA, 2022, Vol. 48, No. 5, pp. 315-327

Identification of Three Far Eastern Redfin Species of the Genus Pseudaspius (Osteichthyes, Cyprinidae) Based on Multidimensional Analysis of Measurable Characters

A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia

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Significant differences between three Far Eastern redfin species, Pseudaspius (Tribolodon) hakonensis, P. brandtii, and P. sachalinensis (Osteichthyes, Cyprinidae), inhabiting Primorsky Krai and Sakhalin Island, and also between samples of the big-scaled redfin P. hakonensis from different habitats have been revealed by the analysis of variance and the canonical and discriminant analyses using measurable characters. Relative sizes of the head, snout, eye, upper and lower jaws, and caudal peduncle were the main features by which species and local groups of Far Eastern redfins differed.

Key words: Far Eastern redfins, Pseudaspius (Tribolodon), morphology, taxonomy, population structure, morphometry, analysis of variance, ANOVA, canonical analysis, discriminant analysis.