Activité de la pompe de na+ - k+ chez le sandre au cours de son acclimatation aux conditions de salinité de la Mer Noire

Authors

  • V. Crăciun
  • Margareta Crăciun
  • Ion Neacșu

Keywords:

young pikeperch

Abstract

Na+ and K+ dependent ATP-ase activity from gills and gut of young pikeperch has been investigated during sudden and gradual transfer from fresh water to brackish water (6-12.8 gS‰). Gradual transfer to salinities as normal for the Black Sea (12-16 g S‰) induce the reduction of ATP-ase activity, according to the new osmotic equilibrium established. Sudden transfer in seawater induces initially the reduction of the enzymatic activity, followed by recovery; the intense osmotic claim imposed by such conditions may explain the death of the experimental subjects.

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Published

2026-07-29

How to Cite

Crăciun, V., Crăciun, M., & Neacșu, I. (2026). Activité de la pompe de na+ - k+ chez le sandre au cours de son acclimatation aux conditions de salinité de la Mer Noire. Cercetări Marine - Recherches Marines, 15(1), 227–233. Retrieved from https://www.marine-research-journal.org/index.php/cmrm/article/view/612

Issue

Vol. 15 No. 1 (1982): CERCETĂRI MARINE - RECHERCHES MARINES

Section

ORIGINAL ARTICLES

License

Creative Commons License

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