Ecological description of the sodium chloride mineral springs in the Kirenga River basin and the upper reaches of the Lena River: 1. General characteristics of the springs and their hydrofauna

The aquatic microecosystems and their environment have been studied in 12 mineral springs located in the Cis-Baikal Depression and in the basin of the upper reaches of the Lena River (Eastern Siberia). The hydrochemical characteristics of the springs, originating from the Cambrian salt deposits, are...

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Bibliographic Details
Published in:Inland water biology 2017-10, Vol.10 (4), p.331-341, Article 331
Main Authors: Takhteev, V. V., Lopatovskaya, O. G., Okuneva, G. L., Pomazkova, G. I., Samoilova, E. A., Rozhkova, N. A.
Format: Article
Language:English
Subjects:
Aquatic animals
Aquatic crustaceans
Aquatic environment
Aquatic fauna
Aquatic Flora and Fauna
Aquatic insects
Aquatic invertebrates
Biodiversity
Biomass
Biomedical and Life Sciences
Brines
Cambrian
Communities
Composition
Crustaceans
Fauna
Fluvial deposits
Foraminifera
Freshwater & Marine Ecology
Geoecology/Natural Processes
Geologic depressions
Larvae
Life Sciences
Macroinvertebrates
Marine invertebrates
Marine molluscs
Marine organisms
Meiobenthos
Meiofauna
Microecosystems
Mineral springs
Mineral waters
Mineralization
River basins
Rivers
Salinity
Salinity effects
Salt deposits
Salts
Sodium
Sodium chloride
Soil
Water salinity
Water springs
Zoobenthos
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Summary:The aquatic microecosystems and their environment have been studied in 12 mineral springs located in the Cis-Baikal Depression and in the basin of the upper reaches of the Lena River (Eastern Siberia). The hydrochemical characteristics of the springs, originating from the Cambrian salt deposits, are given. Their total mineralization varies from 1.1 to 123.0 g/L and the water is sodium chloride. The soils formed under the influence of the mineral waters (“para-soils”) are described. The data on the composition and quantitative abundance of aquatic fauna are presented. Six types of macroinvertebrate communities are described. The communities where Turbellaria, Gastropoda, and Psychodidae dominate are recorded in weakly mineralized waters (97% of the biomass) is described for the concentrated brines in Ust’-Kutskii spring. Halophilic species of crustaceans are recorded in the meiofauna. The presence of Foraminifera (marine organisms) in the two studied springs attracts specific interest.
ISSN:1995-0829
1995-0837
DOI:10.1134/S1995082917040101