[Effect of carbon dioxide dissolved in water on carboanhydrase activity in various organs of carp]

The carboanhydrase activity was studied in erythrocytes and tissues of carp gills and kidneys under conditions of exogenic hypercapnia induced by an increase in the level of carbon dioxide solved in the water medium. This enzymic activity in fish erythrocytes is established to be determined by the hypercapnia degree and does not depend on its duration. The carboanhydrase activity in the gills and kidneys is not changed under the effect of higher (within 0,16-1,10 mM) concentration of carbon dioxide for seven days.