%0 Journal Article %A Kovalenko, Yu. O. %D 2019 %I Begell House %K Crucian carp, adaptation, enzymatic activity, ammonia nitrogen, adaptation duration %N 3 %P 59-66 %R 10.1615/HydrobJ.v55.i3.70 %T Physiological and Biochemical Peculiarities of Crucian Carp Adaptation to Water Bodies Pollution by Ammonia Nitrogen %U https://www.dl.begellhouse.com/journals/38cb2223012b73f2,29dc6340745db454,11b570f12932ce3d.html %V 55 %X The features of crucian carp adaptation to pollution by ammonium nitrogen over different time intervals were studied. The fish responses were judged by changes of activity of lactate dehydrogenase, succinate dehydrogenase, Na+/K+-adenosine triphosphatase, NADP-dependent glutamate dehydrogenase, alanine and aspartate aminotransferases. The long-term (over some generations) adaptation resulted in activation of the energy metabolism enzymes in muscles, liver and gills. Activity of alanine and aspartate aminotransferase was registered in liver of specimens of all experimental groups. %8 2019-05-14