Open AccessEcological state evaluation of the Tuzlukkol River (Ural river basin, Orenburg Region)
Author(s) -
A. A. Shayhutdinova,
Шайхутдинова Анастасия Анатольевна,
Natalia Nemtseva,
Немцева Наталия Вячеславовна
Publication year - 2018
Publication title -
samarskij naučnyj vestnik
Language(s) - English
Resource type - Journals
eISSN - 2782-3016
pISSN - 2309-4370
DOI - 10.17816/snv201873120
Subject(s) - fauna , ecology , benthic zone , salinity , brackish water , invertebrate , drainage basin , species richness , environmental science , hydrology (agriculture) , geography , geology , biology , cartography , geotechnical engineering
The paper presents hydrographic and hydrological characteristics of the Tuzlukkol River (Belyaevsky district, Orenburg region), characterized by a gradient of mineralization and dynamics of the hydrological and hydrochemical regime within landscape-Botanical nature monument Salt urochishche Tuzlukkol. The studied section of the river and the surrounding area in the warm season are exposed to significant anthropogenic impact. The results of the study found that in the composition of the water in the Tuzlukkol River the concentration of ions of calcium, magnesium, sodium, chloride, sulfate ions varies considerably, which indicates a formed natural gradient of salinity. In general, the water from the Tuzlukkol River refers to a chloride class, with a predominance of sodium cations with salinity values more 1000 mg/L. Its the first time data on the taxonomic composition of macrozoobenthos fauna in a landscape-Botanical nature monument Salt urochishche Tuzlukkol have been obtained. Fauna, macrozoobentos on the area under study is represented by 12 species of invertebrates. Larvae of amphibiotic insects: diptera (7 species), podenki (1 species), bedbugs (3 species), crustaceans (1 species) reach the greatest faunal diversity. The salty water of arid zones supports specific conditions for the development of the euryhaline benthic communities. The studies were conducted in May, July and October 2017.