Ecological features of the formation of trematode fauna of molluscs of the Middle Kura basin within Azerbaijan
Keywords:
Middle Kura, freshwater molluscs, trematode fauna trematode fauna, trematodoses, partenites, cercariae, fociAbstract
The review presents results of ecological and parasitological studies of the trematode fauna of the Middle Kura basin freshwater molluscs conducted over the past two years (from July 2013 till March 2015). Totally, 5161 specimens of freshwater molluscs belonging to 9 species were examined, in which 77 species of trematodes (partenites, cercariae, metacercariae) were found. There were detected about 20 species, which are especially dangerous for humans and animals in different developmental stages. The basic causes for the wide distribution of these parasites and the formation of new trematodoses foci were determined. Antropogenic impacts are the main causes of the fundamental change of ecosystem of the Middle Kura basin, followed by changes in species composition and age structure of molluscs populations – the first intermediate hosts of trematodes, favoring passing the development cycle of only certain – specific set of species of parasites.
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