Morphological, Epizotological, and Molecular-Genetic Description of the Species Schyzocotyle acheilognathi (Yamaguti, 1934), a Parasite of the Digestive System of Fishes of Khorezm Region's Reservoirs, Uzbekistan

This article provides information on the morphology, epistemology, and molecular genetics of the cestode species Schyzocotyle acheilognathi (Yamaguti, 1934), which belongs to the genus Schyzocotyle Akhmerov, 1960. This species is a parasite of the digestive systems of the fish Cyprinus carpio Linnaeus, 1758, Carassius gibelio Linnaeus, 1758, and Channa argus Cantor, 1842, in the water reservoirs of the Khorezm region. As a result of this study, samples of S. acheilognathi found in carp and the silver crucian carp were compared. Differences were detected, accounting for 0.36% of the total nucleotide variation. This variation can be attributed to the interaction of environmental factors affecting the host and the environment in which the helminth resides.