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Level of serum cortisol and Na+/K+ ATP-ase activity of gills and kidneys in different acipenserids

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Osmotic and ion regulation in different species of acipenserids (acipenseriformes, acipenseridae)

An increase was found in the functional activity of the mechanism of osmotic and ion homeostasis in sturgeons according to the increase of the environmental salinity of a particular species.
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Hypoosmotic Regulation in Anadromous Marine Sturgeon, with Special Reference to the Structure and Function of Their Kidneys and Gill Chloride Cells

Studies of osmotic and ionic regulation in ecologically diverse acipenserid fish have a bearing on understanding of the evolution of this function in ancient chondrostean ganoid fish.
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Changes in sodium, calcium and magnesium ion concentrations in sturgeon (Huso huso) urine and in kidney morphology

The results suggest that the kidneys play an important part in the regulation of serum osmolarity and in the removal of Ca2+; however, in contrast to teleosts, Mg2+ must be removed extrarenally.
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CHARACTERISTICS OF OSMOTIC AND IONIC REGULATION IN MARINE DIADROMOUS STURGEONS ACIPENSER BREVIROSTRUM AND A. OXYRHYNCHUS (ACIPENSERIDAE)

Morphofunctional remodelling of the osmoregulatory system in starred sturgeon Acipenser stellatus (Acipenseridae) during transition from hyperosmotic to hypoosmotic regulation

The neuroendocrine and endocrine systems respond to changes in the environmental salinity in a short time interval thus stimulating morphofunctional changes inThe effector organs and their transition to hypoosmotic regulation, which restores serum osmolarity close to the initial level.
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Morphological peculiarities of pronephros in Russian sturgeon, Acipenser gueldenstaedtii Brandt (order acipenseriformes, family acipenseridae)

The structure of the pronephros in Russian sturgeon larvae, Acipenser gueldenstaedtii Brandt, at different stages of early postembryonic development (from hatching till 14 days old), was studied with…
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Considerations on evolutionary mechanisms of osmotic and ionic regulation in Acipenseridae: an overview

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Reaction of osmoregulatory system in juveniles of Russian sturgeon Acipenser gueldenstaedtii (Acipenseridae) on influence of comatotropin of carp Cyprinus carpio

Morphophysiological changes observed in the injected juveniles of Russian sturgeon Acipenser gueldenstaedtii Brandt provided the more efficient dynamics of blood serum osmolarity under saline exposure than that in the intact fish.
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Changes of secretory activity of proadenohypophysis ACTH-immunopositive cells in starred sturgeon Acipenser stellatus Pallas during adaptation to sea water

The immunocytochemical method with using of the complex of the protein A—colloidal gold and antibodies against ACTH for electronic-microscopical investigation was applied for the first time and the counting of the golden marks gives relative valuing of the dynamics of secretory activity in these cells during the saline influence.
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