title: Assessment of the ecological state of small rivers of St Petersburg according to the benthic macroinvertebrates indicators in 2019–2021
metadata.name: dc.contributor.author
metadata.value: Petrov, Denis S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Yakusheva, Anna M.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2022-11-10T19:31:49Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2022-11-10T19:31:49Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2022-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Petrov, D. S., Yakusheva, A. M. (2022). Assessment of the ecological state of small rivers of St Petersburg according to the benthic macroinvertebrates indicators in 2019–2021. Vestnik of Saint Petersburg University. Earth Sciences, 67 (3), 529–544. https://doi.org/10.21638/spbu07.2022.308 (In Russian)
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2022.308
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/38531
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The article explores the topical issue of assessing the state and changes of river ecosystems
  located within the boundaries of large cities and industrial agglomerations. The paper presents the results obtained during hydrobiological studies on small rivers of St. Petersburg
  (Russian Federation) in 2019–2021. The application of bioindication methods is substantiated
  in order to assess long-term changes in aquatic ecosystems under conditions of increasing
  anthropogenic load. Various characteristics of the community of benthic invertebrates
  are used as biological indicators of the state of hydroecosystems. Benthos samples were
  taken on eight small watercourses of the city, which are both tributaries of the Neva River of
  various orders (the Okhta, Slavyanka, Chernaya Rechka, Lubya, Okkervil, Volkovka rivers)
  and delta watercourses (the Smolenka and Karpovka rivers). The paper provides a brief
  description of the studied water bodies and sampling sites. A number of biotic metrics and
  biotic indices used for bioindication purposes both in Russia and abroad have been identified.
  It is noted that the unstable hydrochemical regime and low flow velocity in the small
  watercourses of the Neva River delta contribute to the intensification of the accumulation of
  sediments with high concentrations of ecotoxicants, which negatively affects both quantitative
  and qualitative characteristics of biocenoses. In some watercourses there is a complete
  absence of bottom invertebrates, which can be assessed as an ecological disaster. When
  assessing water quality by quantitative and qualitative characteristics of communities of
  benthic invertebrates (Mayer index, BMWP index, some biotic metrics), it can be concluded
  that Okkervil River, Chernaya Rechka River and Volkovka River should be attributed to watercourses
  whose ecological state is extremely unfavorable. The ecological state of the rivers
  Karpovka River, Slavyanka River, as well as the river mouth of Okhta River and Smolenka
  River should be considered unfavorable. And finally, the situation in Lubya River, the river
  head of Smolenka River and in the middle part of the Okhta River can be considered close
  to satisfactory (low quality according to BMWP or moderately polluted water according
  to IM).
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 67; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: bioindication
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: hydrobiological studies
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: bottom sediments
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: small watercourses
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Neva River
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Assessment of the ecological state of small rivers of St Petersburg according to the benthic macroinvertebrates indicators in 2019–2021
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 08.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/38531/1/08.pdf
resources.format: Adobe PDF
resources.size: 1,69 MB