Severka () is a

rural locality In general, a rural area or a countryside is a geographic area that is located outside towns and cities. Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry are typically describ ...

(a selo) and the administrative center of Seversky Selsoviet of

Klyuchevsky District Klyuchevsky District () is an administrativeLaw #28-ZS and municipalLaw #141-ZS district (raion), one of the fifty-nine in Altai Krai, Russia. It is located in the west of the krai. The area of the district is . Its administrative center is the ...

Altai Krai Altai Krai (, ) is a federal subject of Russia (a krai). It borders, clockwise from the west, Kazakhstan ( East Kazakhstan Region, Abai Region and Pavlodar Region), Novosibirsk and Kemerovo, and the Altai Republic. The krai's administrative ce ...

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

. The population was 1,562 as of 2016. There are 16 streets.

Geography and Ecology

Severka is located 16 km south of Klyuchi (the district's administrative centre) by road. Novovoznesenka is the nearest rural locality. Between Severka and the Russia-Kazakhstan border there is a lake named Petukhovo or Petukhovskoye (), a

hypersaline A hypersaline lake is a landlocked body of water that contains significant concentrations of sodium chloride, brines, and other salts, with saline levels surpassing those of ocean water (3.5%, i.e. ). Specific microbial species can thrive i ...

soda lake A soda lake or alkaline lake is a lake on the strongly base (chemistry), basic side of neutrality, typically with a pH, pH value between 9 and 12. They are characterized by high concentrations of carbonate salts, typically sodium carbonate (and ...

.состав рассолов и минеральная зональность донных отложений содовых озер КулундинскОЙ степИ (Западная Сибирь)
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Metagenomic Metagenomics is the study of all genetic material from all organisms in a particular environment, providing insights into their composition, diversity, and functional potential. Metagenomics has allowed researchers to profile the microbial co ...

analyses of lake samples collected in July 2016 indicate the presence of

archaea Archaea ( ) is a Domain (biology), domain of organisms. Traditionally, Archaea only included its Prokaryote, prokaryotic members, but this has since been found to be paraphyletic, as eukaryotes are known to have evolved from archaea. Even thou ...

belonging to the

Lokiarchaeota Promethearchaeota is the sole phylum of the kingdom Promethearchaeati, the kingdom from which the eukaryotes emerged. The phylum has one valid class: Promethearchaeia. The phylum includes all members of the group previously named Deep Sea Arc ...

group (MAG: ''Ca.'' Lokiarchaeota archaeon isolate CSSed165cm_327R1) among other

microbes A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected from antiquity, with an early attestation in ...

NCBI The National Center for Biotechnology Information (NCBI) is part of the National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is loca ...

Nucleotide
MAG: Candidatus Lokiarchaeota archaeon isolate CSSed165cm_327R1
Charlotte D. Vavourakis, Maliheh Mehrshad, Cherel Balkema, Rutger van Hall, Adrian-Ştefan Andrei, Rohit Ghai, Dimitry Y. Sorokin & Gerard Muyzer: Metagenomes and metatranscriptomes shed new light on the microbial-mediated sulfur cycle in a Siberian soda lake. In: ''BMC Biology'' 17, No. 69 (2019). doi:10.1186/s12915-019-0688-7, PMID 31438955, . Se
Additional File 4
(xlsx).

References

Rural localities in Klyuchevsky District {{Klyuchevsky-geo-stub