Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments
Protists are the most diverse eukaryotes on our planet and metabarcoding has revealed an enormous diversity even from deep-sea environments. A range of different species has also been isolated from the deep sea and some have proven able to survive and even grow under deep-sea conditions. However, li...
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ftmdpi:oai:mdpi.com:/1424-2818/14/3/164/ 2023-08-20T04:08:26+02:00 Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments Manon Hohlfeld Hartmut Arndt agris 2022-02-25 application/pdf https://doi.org/10.3390/d14030164 EN eng Multidisciplinary Digital Publishing Institute Marine Diversity https://dx.doi.org/10.3390/d14030164 https://creativecommons.org/licenses/by/4.0/ Diversity; Volume 14; Issue 3; Pages: 164 unicellular eukaryotes live-counting cultivation approach Azores islands depth transects abundance estimations community composition cultivable protists Text 2022 ftmdpi https://doi.org/10.3390/d14030164 2023-08-01T04:17:42Z Protists are the most diverse eukaryotes on our planet and metabarcoding has revealed an enormous diversity even from deep-sea environments. A range of different species has also been isolated from the deep sea and some have proven able to survive and even grow under deep-sea conditions. However, little is known about how the community structure of benthic protists changes from sublittoral down to abyssal depths. This is especially important regarding island and seamount communities which are surrounded by deep-sea areas potentially isolating them. Using a combination of live-counting and cultivation techniques, we investigated the abundance and taxonomic composition of benthic protist communities in sediments from sublittoral to abyssal depths around three islands and two seamounts of the Azores’ archipelago in the North Atlantic. Protist abundance decreased significantly and community composition changed with increasing depth. While some species were found at all depths, others were only detected in sublittoral or lower bathyal depths, indicating that some benthic taxa are limited in their distribution to a certain depth, whereas others are also present at the deep-sea floor. The proportion of unidentified specimens increased with depths pointing towards a high number of so far undetected species in the deep-sea realm. Text North Atlantic MDPI Open Access Publishing Diversity 14 3 164 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
unicellular eukaryotes live-counting cultivation approach Azores islands depth transects abundance estimations community composition cultivable protists |
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unicellular eukaryotes live-counting cultivation approach Azores islands depth transects abundance estimations community composition cultivable protists Manon Hohlfeld Hartmut Arndt Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments |
topic_facet |
unicellular eukaryotes live-counting cultivation approach Azores islands depth transects abundance estimations community composition cultivable protists |
description |
Protists are the most diverse eukaryotes on our planet and metabarcoding has revealed an enormous diversity even from deep-sea environments. A range of different species has also been isolated from the deep sea and some have proven able to survive and even grow under deep-sea conditions. However, little is known about how the community structure of benthic protists changes from sublittoral down to abyssal depths. This is especially important regarding island and seamount communities which are surrounded by deep-sea areas potentially isolating them. Using a combination of live-counting and cultivation techniques, we investigated the abundance and taxonomic composition of benthic protist communities in sediments from sublittoral to abyssal depths around three islands and two seamounts of the Azores’ archipelago in the North Atlantic. Protist abundance decreased significantly and community composition changed with increasing depth. While some species were found at all depths, others were only detected in sublittoral or lower bathyal depths, indicating that some benthic taxa are limited in their distribution to a certain depth, whereas others are also present at the deep-sea floor. The proportion of unidentified specimens increased with depths pointing towards a high number of so far undetected species in the deep-sea realm. |
format |
Text |
author |
Manon Hohlfeld Hartmut Arndt |
author_facet |
Manon Hohlfeld Hartmut Arndt |
author_sort |
Manon Hohlfeld |
title |
Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments |
title_short |
Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments |
title_full |
Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments |
title_fullStr |
Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments |
title_full_unstemmed |
Changes in the Abundance and Taxonomic Composition of Benthic Heterotrophic Protists from Atlantic Sublittoral to Deep-Sea Sediments |
title_sort |
changes in the abundance and taxonomic composition of benthic heterotrophic protists from atlantic sublittoral to deep-sea sediments |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/d14030164 |
op_coverage |
agris |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Diversity; Volume 14; Issue 3; Pages: 164 |
op_relation |
Marine Diversity https://dx.doi.org/10.3390/d14030164 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/d14030164 |
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Diversity |
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14 |
container_issue |
3 |
container_start_page |
164 |
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1774720685316243456 |