PECULIARITIES OF MORPHOMETRIC FEATURES VARIATION IN COMPOUND DACE LEUCISCUS LEUCISCUS
Abstract
The paper investigates fish morphotype of the Chany basin in Western Siberia according to total characteristics of morphometric variation. The publication is aimed at estimating the methods of dace Leuciscus leuciscus interpopulation and intrapopulation studying. Fish capturing took place in the river Kargat in July, 2012. The overall sampling of the fish aged 3…5 was divided into three size groups; the first group included fish of 117-135 mm; the second group included fish of 136-152 mm; and the third group included fish of 153-166 mm. The head height revealed the highest variation; the head depth and post-orbital distance varied more than 15% of the average head length; the head breadth, body length and tail-stem length, distance from end of snout to the insertion of the anal fin and fin length vary within 12-14%. Variation of other 14 features doesn’t exceed 9% of the average one. The comparative analysis of compound dace groups applied the Student criterion and demonstrated similarity among the fish of three groups; the research didn’t reveal any significant differences according to 26 features tested (P > 0,05). The article demonstrates similarity of samples compared in the 1 and 2 components. The authors suppose it is effective to apply integrated fish sampling which consists of fish of different size (117-166 mm) in order to reveal the dace population morphotype.
About the Authors
M. V. Ivaschenko
Новосибирский государственный аграрный университет
Russian Federation
Russian Federation
E. N. Yadrenkina
Институт систематики и экологии животных СО РАН
Russian Federation
Russian Federation
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Review
For citations:
Ivaschenko M.V., Yadrenkina E.N. PECULIARITIES OF MORPHOMETRIC FEATURES VARIATION IN COMPOUND DACE LEUCISCUS LEUCISCUS. Bulletin of NSAU (Novosibirsk State Agrarian University). 2015;(2):50-56. (In Russ.)
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