АКТИВНОСТЬ ФЕРМЕНТОВ ЭНЕРГЕТИЧЕСКОГО И УГЛЕВОДНОГО ОБМЕНА У ГОРБУШИ ONCORHYNCHUS GORBUSHA НА РАЗНЫХ СТАДИЯХ РАЗВИТИЯ
ACTIVITY OF ENZYMES OF ENERGY AND CARBOHYDRATE METABOLISM IN PINK SALMON ONCORHYNCHUS GORBUSHA AT DIFFERENT STAGES OF DEVELOPMENT

Summary/Abstract: The study of variability in the activity of enzymes of energy and carbohydrate metabolism (cytochrome c oxidase (COX), lactate dehydrogenase (LDH), aldolase and 1-glycero-phosphate dehydrogenase (1- GPDG)) in pink salmon Oncorhynchus gorbusha at the following stages of its development was conducted: 1) in oocytes (V) from different areas of the ovary; 2) in embryos at the eye stage formation; 3) in larvae at hatching. It was shown that the activity of glycolysis enzymes, aldolase and LDH, significantly varied in oocytes and in embryos. Larvae of pink salmon hatched from different spawning nests differed in the activity of COX, aldolase and 1-GPDH. Thus, the results of the study indicate that the enzymes of energy and carbohydrate metabolism have a different degree of variability in their activity in the early ontogeny of pink salmon at different stages of its development. Such metabolic variations could determine the features of the further growth and development of individuals, a complex of their adaptive capacities, and, in general, the formation of the intrapopulation heterogeneity of pink salmon according to morpho-physiological indices.

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