NATURAL SCIENCES

Journal of fundamental
and
applied researches

The influence of environmental factors on the inversity the pover of Clupeonella cultiventris

2017. №4, pp. 60-66

Mikhailova A.V. - Ph.D. (Biology), Researcher, Caspian Research Institute of Fishery, 1 Savushkina Str., Astrakhan, 414056, Russian Federation, Anna_korotenko1983@mail.ru

Kychanov V.M. - D.Sc. (Agriculturae), Professor, Astrakhan State University, 20a Tatishcheva Str., Astrakhan, 414056, Russian Federation, Agila8@yandexl.ru

The nutrition of Mature individuals of common kilka in the Caspian sea form the basis of numerous works, however, studies examining the intensity of the power of this fish are very few. As Clupeonella cultiventris occupies an important place in the ecosystem of the Caspian sea, one of the key point is the security of its food. Clupeonella cultiventris inhabits in the Northern, middle and southern Caspian sea over depths less than 100 m. the Material for this article was collected in the Western part of the North Caspian 15-foot trawl at the standard grid of stations in the period comprehensive ichthyological shots 2006-2016. In the present work for the first time traced the dependence of the intensity of food from abiotic factors (temperature, area of the depths, excitement and transparency of sea water) and morphometric indices, and a correlation was established. The characteristic of the area of habitation of ordinary sardines. Summarizes the results, showing the entire spectrum of environmental studies. A comparative assessment of the hydrological indicators. Consider fish were divided into size groups class interval was 5 mm. the Degree of nakormleny expressed in the General indexes. The obtained data can be used to optimize the determination of the index of stomach fullness at different environmental conditions.

Key words: обыкновенная килька, индексы наполнения желудков, накормленность, корреляционный анализ, Clupeonella cultiventris, indices of stomach fullness, correlation analysis