Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic
A total of 413 diatom taxa were known for aquatic habitats of the Lena Delta Nature Reserve. We identified 385 taxa in 14 small tundra lakes near the reserve that significantly enriched the diatom diversity of the region (666 taxa including definitions to the genus level). Thus, the species composit...
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MDPI AG
2023
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ftdoajarticles:oai:doaj.org/article:8d9604447b91481392ba15ee7a369543 2023-08-20T04:04:18+02:00 Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic Sophia Barinova Viktor Gabyshev Sergey Genkal 2023-06-01T00:00:00Z https://doi.org/10.3390/d15070802 https://doaj.org/article/8d9604447b91481392ba15ee7a369543 EN eng MDPI AG https://www.mdpi.com/1424-2818/15/7/802 https://doaj.org/toc/1424-2818 doi:10.3390/d15070802 1424-2818 https://doaj.org/article/8d9604447b91481392ba15ee7a369543 Diversity, Vol 15, Iss 802, p 802 (2023) diatoms diversity ecology floristic comparative floristics climate Biology (General) QH301-705.5 article 2023 ftdoajarticles https://doi.org/10.3390/d15070802 2023-07-30T00:35:57Z A total of 413 diatom taxa were known for aquatic habitats of the Lena Delta Nature Reserve. We identified 385 taxa in 14 small tundra lakes near the reserve that significantly enriched the diatom diversity of the region (666 taxa including definitions to the genus level). Thus, the species composition of diatoms in the reserve and adjacent territories was increased by 278 species. We showed that the species of the genera Pinnularia (57) and Eunotia (51) have predominance at the family and generic levels. The index of intraspecific variability Ssp./Sp. for the lakes of the reserve was 1.11, and that for the lakes of the Tiksi region 1.14, which is typical for high-latitude and high-mountain communities. The number of rare or endangered species varied in different lakes from 1 to 10, totaling 42 species for the entire study area. Bioindication has shown that potentially threatened species prefer moderate temperatures, and slightly acidic or neutral environments free from organic pollution. A comparative analysis of the species composition of diatoms in the vicinity of the Lena Delta and other northern water bodies of Yakutia and the Arctic Islands showed that the species composition of each lake in the Arctic has a discernably different species distribution. The indicator characteristics show a certain response of the species composition of diatoms to changes in salinity, pH, and organic pollution. Regularities in the spatial distribution of diatoms in the study area were revealed in connection with the environmental variables of their habitat. Statistical mapping of diatom diversity data and bioindicators revealed a pronounced response to point pollution, and also let us assume the influence of summer northeast winds on species composition of the studied lake communities. We suggest that the high diversity inherent in the diatom lakes of the Tiksi coastal zone, which can even be updated in further studies, can be considered as a property of coastal biota inherent in ecotones. Since it is in the coastal Tiksi ... Article in Journal/Newspaper Arctic lena delta Tiksi Tundra Yakutia Directory of Open Access Journals: DOAJ Articles Arctic Tiksi ENVELOPE(128.867,128.867,71.633,71.633) Diversity 15 7 802 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
diatoms diversity ecology floristic comparative floristics climate Biology (General) QH301-705.5 |
spellingShingle |
diatoms diversity ecology floristic comparative floristics climate Biology (General) QH301-705.5 Sophia Barinova Viktor Gabyshev Sergey Genkal Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic |
topic_facet |
diatoms diversity ecology floristic comparative floristics climate Biology (General) QH301-705.5 |
description |
A total of 413 diatom taxa were known for aquatic habitats of the Lena Delta Nature Reserve. We identified 385 taxa in 14 small tundra lakes near the reserve that significantly enriched the diatom diversity of the region (666 taxa including definitions to the genus level). Thus, the species composition of diatoms in the reserve and adjacent territories was increased by 278 species. We showed that the species of the genera Pinnularia (57) and Eunotia (51) have predominance at the family and generic levels. The index of intraspecific variability Ssp./Sp. for the lakes of the reserve was 1.11, and that for the lakes of the Tiksi region 1.14, which is typical for high-latitude and high-mountain communities. The number of rare or endangered species varied in different lakes from 1 to 10, totaling 42 species for the entire study area. Bioindication has shown that potentially threatened species prefer moderate temperatures, and slightly acidic or neutral environments free from organic pollution. A comparative analysis of the species composition of diatoms in the vicinity of the Lena Delta and other northern water bodies of Yakutia and the Arctic Islands showed that the species composition of each lake in the Arctic has a discernably different species distribution. The indicator characteristics show a certain response of the species composition of diatoms to changes in salinity, pH, and organic pollution. Regularities in the spatial distribution of diatoms in the study area were revealed in connection with the environmental variables of their habitat. Statistical mapping of diatom diversity data and bioindicators revealed a pronounced response to point pollution, and also let us assume the influence of summer northeast winds on species composition of the studied lake communities. We suggest that the high diversity inherent in the diatom lakes of the Tiksi coastal zone, which can even be updated in further studies, can be considered as a property of coastal biota inherent in ecotones. Since it is in the coastal Tiksi ... |
format |
Article in Journal/Newspaper |
author |
Sophia Barinova Viktor Gabyshev Sergey Genkal |
author_facet |
Sophia Barinova Viktor Gabyshev Sergey Genkal |
author_sort |
Sophia Barinova |
title |
Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic |
title_short |
Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic |
title_full |
Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic |
title_fullStr |
Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic |
title_full_unstemmed |
Diversity of Diatom Algae in the Lena Delta Nature Reserve and the Adjacent Territory in the Specific Ecological Factors of the Arctic |
title_sort |
diversity of diatom algae in the lena delta nature reserve and the adjacent territory in the specific ecological factors of the arctic |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/d15070802 https://doaj.org/article/8d9604447b91481392ba15ee7a369543 |
long_lat |
ENVELOPE(128.867,128.867,71.633,71.633) |
geographic |
Arctic Tiksi |
geographic_facet |
Arctic Tiksi |
genre |
Arctic lena delta Tiksi Tundra Yakutia |
genre_facet |
Arctic lena delta Tiksi Tundra Yakutia |
op_source |
Diversity, Vol 15, Iss 802, p 802 (2023) |
op_relation |
https://www.mdpi.com/1424-2818/15/7/802 https://doaj.org/toc/1424-2818 doi:10.3390/d15070802 1424-2818 https://doaj.org/article/8d9604447b91481392ba15ee7a369543 |
op_doi |
https://doi.org/10.3390/d15070802 |
container_title |
Diversity |
container_volume |
15 |
container_issue |
7 |
container_start_page |
802 |
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1774714696858861568 |