Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure)
The species composition and abundance of macrozoobenthos was studied in rapids and backwaters of the Kem’ River (draining to the White Sea). 93 species and supra-species taxa of invertebrates were identified. Zoobenthos of the rapids was more diverse, the bulk of it made up of amphibiotic insects at...
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ftdoajarticles:oai:doaj.org/article:b20036ba85024455a9b219e5a6d906f9 2023-05-15T18:43:49+02:00 Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) Igor Baryshev 2018-10-01T00:00:00Z https://doi.org/10.17076/eco908 https://doaj.org/article/b20036ba85024455a9b219e5a6d906f9 EN RU eng rus Karelian Research Centre of the Russian Academy of Sciences http://journals.krc.karelia.ru/index.php/ecology/article/view/908 https://doaj.org/toc/1997-3217 https://doaj.org/toc/2312-4504 1997-3217 2312-4504 doi:10.17076/eco908 https://doaj.org/article/b20036ba85024455a9b219e5a6d906f9 Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Iss 10 (2018) benthic invertebrates rapids backwater river diversity biomass fauna filter feeders saprobity Science Q article 2018 ftdoajarticles https://doi.org/10.17076/eco908 2022-12-31T05:13:50Z The species composition and abundance of macrozoobenthos was studied in rapids and backwaters of the Kem’ River (draining to the White Sea). 93 species and supra-species taxa of invertebrates were identified. Zoobenthos of the rapids was more diverse, the bulk of it made up of amphibiotic insects at the larval stage – mayflies of the family Baetidae (Ephemeroptera), caddisflies of the families Hydropsychidae and Rhyacophilidae, stoneflies (Plecoptera), dipterans of the subfamily Orthocladiinae. The backwaters are poorer in species diversity, the species of chironomids of the subfamily Chironominii predominate. The zoobenthos biomass in the rapids (1112–2150 ind./m2 and 1.7–6.9 g/m2) is mainly composed of Trichoptera, Plecoptera and Bivalvia. The backwaters are poor in zoobenthos (390–1210 ind./m2 and 0.8–2.8 g/m2). The biomass is formed by Bivalvia and Gastropoda, Oligochaeta and Chironomidae. Local, highbiomass (up to 460 g/m2) aggregations of large bivalves Anodonta cygnea have been found. In the trophic structure, the most indicative is the share of passive filter feeders, which is high in the rapids in the lower reaches of the river and downstream of flowage lakes. According to the composition of saprobity indicator organisms, watercourses of the Kem’ River catchment belong to the β-mesosaprobic zone. Article in Journal/Newspaper White Sea Directory of Open Access Journals: DOAJ Articles White Sea Proceedings of the Karelian Research Centre of the Russian Academy of Sciences 10 70 |
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English Russian |
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benthic invertebrates rapids backwater river diversity biomass fauna filter feeders saprobity Science Q |
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benthic invertebrates rapids backwater river diversity biomass fauna filter feeders saprobity Science Q Igor Baryshev Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) |
topic_facet |
benthic invertebrates rapids backwater river diversity biomass fauna filter feeders saprobity Science Q |
description |
The species composition and abundance of macrozoobenthos was studied in rapids and backwaters of the Kem’ River (draining to the White Sea). 93 species and supra-species taxa of invertebrates were identified. Zoobenthos of the rapids was more diverse, the bulk of it made up of amphibiotic insects at the larval stage – mayflies of the family Baetidae (Ephemeroptera), caddisflies of the families Hydropsychidae and Rhyacophilidae, stoneflies (Plecoptera), dipterans of the subfamily Orthocladiinae. The backwaters are poorer in species diversity, the species of chironomids of the subfamily Chironominii predominate. The zoobenthos biomass in the rapids (1112–2150 ind./m2 and 1.7–6.9 g/m2) is mainly composed of Trichoptera, Plecoptera and Bivalvia. The backwaters are poor in zoobenthos (390–1210 ind./m2 and 0.8–2.8 g/m2). The biomass is formed by Bivalvia and Gastropoda, Oligochaeta and Chironomidae. Local, highbiomass (up to 460 g/m2) aggregations of large bivalves Anodonta cygnea have been found. In the trophic structure, the most indicative is the share of passive filter feeders, which is high in the rapids in the lower reaches of the river and downstream of flowage lakes. According to the composition of saprobity indicator organisms, watercourses of the Kem’ River catchment belong to the β-mesosaprobic zone. |
format |
Article in Journal/Newspaper |
author |
Igor Baryshev |
author_facet |
Igor Baryshev |
author_sort |
Igor Baryshev |
title |
Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) |
title_short |
Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) |
title_full |
Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) |
title_fullStr |
Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) |
title_full_unstemmed |
Zoobenthos of the Kem’ river, White sea drainage basin (composition, abundance and trophic structure) |
title_sort |
zoobenthos of the kem’ river, white sea drainage basin (composition, abundance and trophic structure) |
publisher |
Karelian Research Centre of the Russian Academy of Sciences |
publishDate |
2018 |
url |
https://doi.org/10.17076/eco908 https://doaj.org/article/b20036ba85024455a9b219e5a6d906f9 |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Iss 10 (2018) |
op_relation |
http://journals.krc.karelia.ru/index.php/ecology/article/view/908 https://doaj.org/toc/1997-3217 https://doaj.org/toc/2312-4504 1997-3217 2312-4504 doi:10.17076/eco908 https://doaj.org/article/b20036ba85024455a9b219e5a6d906f9 |
op_doi |
https://doi.org/10.17076/eco908 |
container_title |
Proceedings of the Karelian Research Centre of the Russian Academy of Sciences |
container_issue |
10 |
container_start_page |
70 |
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1766234315036819456 |