MORPHOFUNCTIONAL DISTURBANCES IN KIDNEYS OF STURGEONS AND BONY FISHES OF THE VOLGA-CASPIAN RESERVOIR UNDER
NATURAL CONDITIONS
Al. A. Romanov, I. N. Lepilina, An. A. Romanov
Caspian Fisheries Research Institute, Astrakhan’
By light microscopy, the morphofunctional state of mesonephros was studied for various sturgeons and bony
fishes taken from natural waters. Different changes were recorded in structural-functional elements of nephrons
of the mesonephros. The most frequent disturbances are hemorrhages in the intertubule tissue of kidneys,
hyalinosis of vessel walls, swollen epithelium, inflammations. The revealed disturbances may be regarded as a
response to negative environmental impacts.
Key words: sturgeons, nephron, renal corpuscles, convoluted tubules, epithelium
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