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Существующий в Российской Федерации массив законодательства подвергается постоянным дополнениям и изменениям, что не может не приводить к возникновению противоречий между отдельными нормами права. Устранение подобных противоречий в праве обусловлено рядом факторов (критериев, принципов), которые влияют на построение иерархии норм права. Иерархическая система правовых норм детерминируется различными критериями, к числу которых относятся: иерархия государственных органов, время принятия нормативного правового акта, степень общности норм права, значимость регулируемых общественных отношений, кодифицированный характер акта и другие. На основе детального анализа указанных критериев авторы статьи приходят к выводу, что только совокупное их влияние определяет место нормы права в иерархической системе российского законодательства. Руководствуясь лишь одним критерием, построение подобной иерархии не представляется возможным. При этом рассматриваемые в статье критерии и принципы представляют собой лишь теоретическое обоснование установления иерархической системы норм права, и сами по себе не могут выступать в качестве нормативной основы для признания приоритета между нормами различного уровня. Для воплощения подобной модели на практике необходимо, чтобы соответствующая иерархическая зависимость была установлена в правовой форме. ; The existing in the Russian Federation legislation is subject to constant amendments and supplements that cannot but lead to inconsistencies between certain provisions of the law. Elimination of such contradictions in the law is caused by a number of factors (criteria, principles), influencing the hierarchy of legal norms formation. The hierarchical system of legal norms is determined by different criteria including the hierarchy of state bodies, the time of a normative legal act adoption, the degree of the law provisions community and the importance of regulated public relations, codified nature of the act, and others. On the basis of a detailed analysis of these criteria, the authors come to the conclusion that only the cumulative effect, ultimately, determines the place of rule of law in the hierarchical system of the Russian legislation. Guided by only one criterion, it is impossible to construct such a hierarchy. In addition, the criteria and principles considered in the article constitute only a theoretical justification for the establishment of a hierarchical system of legal norms, they can not be treated as a normative framework for the recognition of the priority between the rules of different levels. To implement this model in practice, it is necessary to establish an adequate hierarchical dependence in the legal form.

A comparative study of the lipid and fatty acid composition of Atlantic salmon underyearlings reared under natural and continuous light in commercial aquaculture in the summer-autumn period in North Ossetia-Alania was carried out. A stable change in the main indicators of lipid metabolism in salmon underyearlings from September to November was found, aimed at preparing juveniles for smoltification. A change in key fatty acid indicators was detected: an increase in the content of PUFAs due to (n-3) PUFAs, and the "marine" type of PUFA – 22:6 (n-3), high values of the ratios (n-3)(n-6) PUFA, 18:3(n-3)/18:2 (n-6), 22:6(n-3)/ 18:3(n-3). It has been shown the stimulating effect of the combined and stable action of the continuous photoperiod and feeding in the summer-autumn period on the preparation for smoltification of Atlantic salmon fingerlings grown under aquaculture conditions.

The study of the biochemical mechanisms of the effect of additional lighting on the
growth and early development of salmonids in aquaculture allows to identify patterns of slow or accelerated growth, as well as the onset of the smoltification. In this study, the results of changes in lipid status in parr and smolts of Atlantic salmon after the "winter window" (December-January) are presented. These results were obtained from three experimental groups exposed to different lighting and feeding regimes at the fingerlings stage. The changes in lipid composition of the studied young salmon indicate the onset of smoltification in all experimental groups. However, this effect is the most pronounced in the fish previously reared under continuous lighting during the summer-autumn season.