Bioindication of Sanitary and Hygienic Pollution of Water Bodies and Soils of the Mountainous Zone of the North Caucasus Region by the Detection of Eggs of Socially Dangerous Helminths
Bioindication of Sanitary and Hygienic Pollution of Water Bodies and Soils of the Mountainous Zone of the North Caucasus Region by the Detection of Eggs of Socially Dangerous Helminths
Kamilla Gadzhimuradovna Alieva1, Patimat Mitkhatovna Daniyalova1, Svetlana Aleksandrovna Shemyakova2*, Kerim Khasanovich Bolatchiev2, Ismail Anatolyevich Bittirov3
ABSTRACT
In the mountain rivers R. Terek, R. Malka, R. Baksan, R. Cherek, R. Chegem, R. Gizhgit, R. Kendelen, R. Kichmalka, R. Khaznidon, R. Sukan-su.at 12.00-30.0% of the samples, eggs of Trichocephalus ovis (Abildgaard, 1795) and Trichocephalus skrjabini (Baskakow, 1924) were found. Study of the dynamics of soil pollution by eggs of the genus Trichocephalus (Schrank, 1788) in the mountainous zone in 2017–2020. revealed moderate pollution of water and soil samples from reservoirs with a tendency to increase from 13.0 to 28.0% (on average by 19.8%). with an increase in the number of eggs per 1 liter of water from 7.2 ± 0.5 to 19.1 ± 1.2 ind. (on average 12.1 ± 0.8 specimens per liter of water). The number of water samples contaminated with eggs of nematodes of the genus Trichocephalus (Schrank, 1788) was high in densely populated areas. In natural water bodies of pastures in Kabardino-Balkaria, their number was 96.30%, in water bodies of pastures in settlements - 88.40%. in the water area of rivers - 72.70%, in reservoirs on the territory of farms - 90.60%, in kosher reservoirs - 100%, in watering places for sheep - 100%, in reservoirs of sheep resting areas - 100%. %. Eggs of nematodes in samples of water, soil, feces, hay, silage and forage during the winter retained viability at the level of 22.6, respectively; 28.0; 37.4; 81.6; 74.2; 92.6%. The sanitary and hygienic state of water and soil in 10 mountain rivers in the territory of Kabardino-Balkaria can be assessed as unfavorable from the point of view of contamination with eggs of nematodes of the genus Trichocephalus and other helminths
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