Аграрный вестник Урала № 06 (124) 2014
Рыбное хозяйствоУДК:597.0/.5(470.64)
SOME QUESTIONS OF BIOLOGY OF TERSK PODUST (CHONDROSTOMA OXYRHYNCHUM KESSLER, 1877) OF TEREK RIVER BASIN
This paper studies the biology of one of the endemic species of the Terek River basin — Terek Podust (Chondrostoma oxyrhynchum Kessler, 1877). This study is conducted in more than two decades of marine biological resources monitoring reservoirs and streams of the northern slopes of the Central Caucasus. Field data collection was carried out in the conventional methods and techniques of ichthyology. Also were viewed catches anglers. Total was produced, seen and measurements in 2642 reproductions of Terek Podust. In the past, in terms of the Kabardino-Balkar Republic undermouth was the largest river fish inhabiting the river Terek and its tributaries from the plain to the foothills, now considered the best detection flocks of several hundred manufacturers. The article gives some information on the ecology and biology of the Terek Podust concerning territo- rial distribution and biotopical structures, spawning pack spawning periods and fertility, as well as nutrition and parasitic infes- tation. The article from the analysis of the material collected and conducted observations, made a map of the modern territorial distribution Podust Terek. Showing the locations of his disappearance and established causes of this circumstance. The paper presents data on the size and weight indicators Podust different age groups, designated spawning time and the morphology of producers during the spawning period. Researchers provide information on the range and average of female fertility, show the size and mass of individual indicators eggs. It also describes the diet Podust Terek, which are dominated by single-celled algae, periphyton components. Separately addresses the issue of parasites Podust. It is shown that the most undermouth uncontami- nated fish in terms of Kabardino-Balkaria.
Keywords:
Terek undermouth, Chondrostoma oxyrhynchum Kessler, especially biology, rivers, streams, Kabardino- Balkaria, Central Caucasus
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