Myxosporeans of Greening Fish of the Far Eastern Seas

The infection of three species of greenlings of the genus Hexagrammos, and two species of single-finned greenlings of the genus Pleurogrammus, was examined by myxosporeans. In the myxosporeans fauna of greening fish, 6 species of myxosporeans were found: Sphaeromyxa hexagrammi, Zschokkella russelli, Ceratomyxa azonusi, Alataspora bialata, Kudoa azoni, Kudoa sp. At the same, three species (S. hexagrammi, C. azonusi, K. azoni) are specific only to greenling fish. Two species (Z. russelli, A. bialata) are broadly specific, Kudoa sp. not determined to species It was established that in the common greenlings the infection with myxosporeans was low, and the composition of the fauna was poor. The one-finned greenlings, in contrast to the common-finned greenlings, were more infected and had more myxosporeans species in their fauna. But both greenlings are dominated by the gallbladder species Sphaeromyxa hexagrammi, and muscle parasites of the genus Kudoa (K. azoni, K sp.), but the nature of infestation and distribution across the study areas are very different. First of all, with the biology of these greenlings. A smaller degree of differences in the common greenlings in the expansion of invasion by various species of myxosporeans less ecological plasticity of these species, compared to the single-finned greenlings.