Russian Federation
GRNTI 34.39 Физиология человека и животных
GRNTI 62.13 Биотехнологические процессы и аппараты
GRNTI 69.01 Общие вопросы рыбного хозяйства
GRNTI 69.25 Аквакультура. Рыбоводство
GRNTI 69.31 Промышленное рыболовство
GRNTI 69.51 Технология переработки сырья водного происхождения
GRNTI 87.19 Загрязнение и охрана вод суши, морей и океанов
The article is devoted to the research of the incubation temperature on the α-amylase of the intestinal mucous tunic of Russian sturgeon, Siberian sturgeon and their hybrid ROLO. The objects of the research were yearlings of the above-named species and hybrid obtained and grown in the artificial conditions. During the work, the standard physiological and biochemical methods were used. Subsequently the comparative analysis of the enzyme reactions on the changes of incubation temperature was executed. The method of hierarchical clustering was used as the main instrument of the comparative analysis. The result of the data processing was the construction of the hierarchically organized classifications, graphically displayed in the form of dendrograms, which can be analysed in order to judge about the extent of similarities and differences of the compared sets of elements. As a method of determining the distance between the objects the distance of city districts was taken, the unification of the clusters was made with the unweighted pair-group average method. While analyzing the clustering dendrogram, it has been revealed that within the whole range of the studied temperatures, the proximity of the data relating to the Russian sturgeon and the data on hybrid is clearly seen, basically, such a neighborhood is observed in identical temperature conditions. At the second stage of the analysis, the data relating to the end points of the researched temperature range were excluded, after this, the algorithm grouped the data into three clusters, corresponding to three objects of the study. As a result it was established that the enzymes of hybrid in responsive reactions show maximum similarity with the same enzymes of the Russian sturgeon. This similarity of the adaptive reactions was registered in the temperature range from 10 to 40 °С.
sturgeons, hybrids, membrane digestion, digestive enzymes, temperature, cluster analysis
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