Abstract
The article presents the parasitological studies of Trematoda, collected by complete helminthological dissections of birds in the Pavlodar region of the Republic of Kazakhstan. In Pavlodar region, we have currently diagnosed among the Trematoda, the presence of 16 species belonging to four subgenera and seven families. We supposed that there is a local pest-spot of Prosthogonimidae and Echinistomatidae in the north-east of Kazakhstan, because we have found marites in young migratory birds. We noted that the pest-spot of Echinostomatidae and Echinistomatidae (in years with their registration) in the territory of Pavlodar region was broad enough, because the trematode marites of these families were registered from the birds, sampled at the geographically remote waterbodies. We revealed that the hotspots of Prosthogonimidae localization varied, which was most likely determined by the annual climatic conditions.
Highlights
Nowadays, the parasitology as part of zoological science is still relevant (Ryss et al, 2018)
In total we investigated 131 specimens of waterfowl belonging to 14 species from 4 orders: Podicipediformes – great-crested grebe Podiceps cristatus (n = 5), little grebe P. ruficollis (n = 2); Ciconiiformes – bittern Botaurus stellaris (n = 1); Gruiformes – coot Fulica atra (n = 20); Anseriformes – mallard Anas platyrhynchos (n = 26), teal A. crecca (n = 1), garganey A. querquedula (n = 16), gadwall A. strepera (n = 16), pintail A. acuta (n = 10), common shoveler A. clypeata (n = 8), common pochard Aythya ferina (n = 22), tufted duck A. fuligula (n = 3) and ruddy shelduck Tadorna ferruginea (n = 1)
Suborder Schistosomata (Sktjabin et Schulz, 1937) Family Schisthosomatidae (Loos, 1899) Dendrithobilharzia purverulenta (Skrjabin et Schuz, 1920) Family Echinostomatidae is represented by Hypoderaeum conoideum (Bloch, 1782), Echinostoma revolutum (Fröelich, 1802) and Echinoparyphium aconiatum (Dietz, 1909), family Prosthogonimidae is represented by Prosthogonimus cuneatus and Schisthogonimus rarus
Summary
The parasitology as part of zoological science is still relevant (Ryss et al, 2018). Echinostomatidae and Prosthogonimidae are fairly common cosmopolitan taxa of bird trematodes Relevance of studying their prevalence and peculiarities of their confinement both to individual regions and fluctuation of infection rates is important for parasitological science, and for practical applied services to prevent helminths of economically important bird species. Additional hosts in the cycle of development of prostonimide are dragonflies, in echinostomatid the above-mentioned species of molluscs and frogs (in the region more often there is an acute frog), some species of fish and insects (Galat, Yatusevich, 2015) Definitive hosts of both families are domestic and wild birds. The purpose of our study was to establish the distribution of trematodes among waterfowl in the Pavlodar region
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