Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared
We developed and compared the performance of freshwater benthic diatom indices calculated from (i) traditional morphological species identification, (ii) Amplicon Sequence Variants (ASVs) obtained via DNA metabarcoding, and (iii) morphological traits to indicate eutrophication in rivers and lakes in...
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ftdoajarticles:oai:doaj.org/article:cff5faff3c8c4853a93d1d0ed28abe47 2023-05-15T16:12:02+02:00 Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared Maria Kahlert Bonnie Bailet Teofana Chonova Satu Maaria Karjalainen Susanne C. Schneider Kálmán Tapolczai 2021-11-01T00:00:00Z https://doi.org/10.1016/j.ecolind.2021.108088 https://doaj.org/article/cff5faff3c8c4853a93d1d0ed28abe47 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S1470160X21007536 https://doaj.org/toc/1470-160X 1470-160X doi:10.1016/j.ecolind.2021.108088 https://doaj.org/article/cff5faff3c8c4853a93d1d0ed28abe47 Ecological Indicators, Vol 130, Iss , Pp 108088- (2021) Amplicon Sequence Variants Environmental assessment Index Indicator value Eutrophication Metabarcoding Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1016/j.ecolind.2021.108088 2022-12-31T07:17:14Z We developed and compared the performance of freshwater benthic diatom indices calculated from (i) traditional morphological species identification, (ii) Amplicon Sequence Variants (ASVs) obtained via DNA metabarcoding, and (iii) morphological traits to indicate eutrophication in rivers and lakes in Fennoscandia. Based on the results, we provided recommendations for the future routine use of diatom bioassessment tools in environmental monitoring and assessment. Our results show that ASVs are the most promising candidates to be used in environmental assessment. Indices based on ASVs correlated better with TotP concentrations than morphological taxa data, whereas the trait indices correlated least. We could see by studying the taxonomic assignments of the ASVs that traditional morphotaxa were divided up into several ASVs with different ecological profiles, which explained part of the better index performance and also encourages further studies on diatom diversity and ecological preferences. In general, ASV- and morphotaxon-specific optima differed slightly between streams and lakes, but were significantly correlated with each other. This means that it should be possible to develop a common index that is applicable in both streams and lakes, but boundary values with respect to TotP might need to be set separately for them. More knowledge on diatom traits is required to enable their use for environmental assessment. Article in Journal/Newspaper Fennoscandia Fennoscandian Directory of Open Access Journals: DOAJ Articles Ecological Indicators 130 108088 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Amplicon Sequence Variants Environmental assessment Index Indicator value Eutrophication Metabarcoding Ecology QH540-549.5 |
spellingShingle |
Amplicon Sequence Variants Environmental assessment Index Indicator value Eutrophication Metabarcoding Ecology QH540-549.5 Maria Kahlert Bonnie Bailet Teofana Chonova Satu Maaria Karjalainen Susanne C. Schneider Kálmán Tapolczai Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared |
topic_facet |
Amplicon Sequence Variants Environmental assessment Index Indicator value Eutrophication Metabarcoding Ecology QH540-549.5 |
description |
We developed and compared the performance of freshwater benthic diatom indices calculated from (i) traditional morphological species identification, (ii) Amplicon Sequence Variants (ASVs) obtained via DNA metabarcoding, and (iii) morphological traits to indicate eutrophication in rivers and lakes in Fennoscandia. Based on the results, we provided recommendations for the future routine use of diatom bioassessment tools in environmental monitoring and assessment. Our results show that ASVs are the most promising candidates to be used in environmental assessment. Indices based on ASVs correlated better with TotP concentrations than morphological taxa data, whereas the trait indices correlated least. We could see by studying the taxonomic assignments of the ASVs that traditional morphotaxa were divided up into several ASVs with different ecological profiles, which explained part of the better index performance and also encourages further studies on diatom diversity and ecological preferences. In general, ASV- and morphotaxon-specific optima differed slightly between streams and lakes, but were significantly correlated with each other. This means that it should be possible to develop a common index that is applicable in both streams and lakes, but boundary values with respect to TotP might need to be set separately for them. More knowledge on diatom traits is required to enable their use for environmental assessment. |
format |
Article in Journal/Newspaper |
author |
Maria Kahlert Bonnie Bailet Teofana Chonova Satu Maaria Karjalainen Susanne C. Schneider Kálmán Tapolczai |
author_facet |
Maria Kahlert Bonnie Bailet Teofana Chonova Satu Maaria Karjalainen Susanne C. Schneider Kálmán Tapolczai |
author_sort |
Maria Kahlert |
title |
Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared |
title_short |
Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared |
title_full |
Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared |
title_fullStr |
Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared |
title_full_unstemmed |
Same same, but different: The response of diatoms to environmental gradients in Fennoscandian streams and lakes – barcodes, traits and microscope data compared |
title_sort |
same same, but different: the response of diatoms to environmental gradients in fennoscandian streams and lakes – barcodes, traits and microscope data compared |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.ecolind.2021.108088 https://doaj.org/article/cff5faff3c8c4853a93d1d0ed28abe47 |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_source |
Ecological Indicators, Vol 130, Iss , Pp 108088- (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1470160X21007536 https://doaj.org/toc/1470-160X 1470-160X doi:10.1016/j.ecolind.2021.108088 https://doaj.org/article/cff5faff3c8c4853a93d1d0ed28abe47 |
op_doi |
https://doi.org/10.1016/j.ecolind.2021.108088 |
container_title |
Ecological Indicators |
container_volume |
130 |
container_start_page |
108088 |
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1765997268493664256 |