The article studies some faunistic features of helminths wetland birds in the ecological crisis zone North-Western Uzbekistan. Parasites collected basin lower reaches Amu Darya during hunting seasons 2018–2022 were used as material for this work. 500 individuals representing 39 species from 24 genera, 13 families and 9 orders examined using parasitological dissection method. discusses distribut...

To investigate the phylogenetic relationships of leeches, branchiobdellidans, and acanthobdellidans, whole nuclear 18S rDNA and over 650 bp of mitochondrial cytochrome c oxidase subunit I were acquired from 101 annelids, including 36 leeches, 18 branchiobdellidans, Acanthobdella peledina, as well as 28 oligochaetes and combined with homologous data for 17 polychaete outgroup taxa. Parsimony ana...

The problem of the complex configuration of the collagen in the Oligochaeta has not yet been conclusively solved. Since the last century, evidence has been found of a fibrous structure lying above the epidermis (constituting the cuticle) and of another one lying below it (constituting the supporting structures). The cuticle, easily examined by physical and chemical methods, was analyzed minutel...

In this study, to determine the trophic level of Küçükçekmece Lagoon Lake, water and sediment samplings were performed at five selected stations seasonally during a year between 2014-2015. The samples analyzed some environmental variables (water temperature, pH, conductivity, DO (dissolved oxygen), TDS (total dissolved solids), salinity. NO3-N, NO2-N, SO4-2, PO4-3, SiO2, chlorophyll-a, TP phosp...

Stream macroinvertebrate communities are modulated by different processes at spatial scales, from watershed to reaches and local scale, which can be directly or indirectly affected human activities changes in land use. This study evaluated the effect of water quality on structure San Francisco drainage basin, Lavalleja, Uruguay. We measured situ physico-chemical variables collected a total 50 s...