CORTISOL LEVEL AND Na + /K + -ATPASE ACTIVITY DURING GROWTH AND DEVELOPMENT OF JUVENILE DAUBED SHANNY  LEPTOCLINUS MACULATUS  (FRIES, 1838) IN THE ARCTIC

N. L. Rendakov; Рендаков Н. Л.; E. I. Kaivarainen; Кяйвяряйнен Е. И.; S. N. Pekkoeva; Пеккоева С. Н.; S. A. Murzina; Мурзина С. А.; K. M. Nikerova; Никерова К. М.

doi:10.31857/S2686738922600698

CORTISOL LEVEL AND Na⁺/K⁺-ATPASE ACTIVITY DURING GROWTH AND DEVELOPMENT OF JUVENILE DAUBED SHANNY LEPTOCLINUS MACULATUS (FRIES, 1838) IN THE ARCTIC

Authors: Rendakov N.L.¹, Kaivarainen E.I.¹, Pekkoeva S.N.¹, Murzina S.A.¹, Nikerova K.M.²
Affiliations:
1. Institute of Biology of the Karelian Research Centre of the Russian Academy of Sciences
2. Forest Research Institute of the Karelian Research Centre of the Russian Academy of Sciences
Issue: Vol 508, No 1 (2023)
Pages: 19-22
Section: Articles
URL: https://ogarev-online.ru/2686-7389/article/view/135664
DOI: https://doi.org/10.31857/S2686738922600698
EDN: https://elibrary.ru/MONCJB
ID: 135664

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Abstract

The dynamics of cortisol level and Na⁺/K⁺-ATPase (NKA) activity that are associated with the maintenance of cell ion homeostasis was studied in skeletal muscles of juvenile circumpolar fish daubed shanny Leptoclinus maculatus (Fries, 1838), an ecologically significant representative of the ichthyofauna of the Arctic Svalbard archipelago. It has been established that the level of cortisol and NKA activity decrease during the development of daubed shanny juveniles from L2 stage pelagic juveniles of L5 stage, which are mainly demersal. The results obtained suggest that cortisol may be involved in the regulation of the activity of one of the main osmoregulatory factors, NKA. This may be important for the growth and adaptation of pelagic juveniles of daubed shanny to the demersal habitat during postembryonic development in the Arctic.

Keywords

cortisol, Na+-K+-ATPase, Leptoclinus maculatus, ontogeny, Arctic

References

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