Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA
Abstract Current global warming results in rising sea-water temperatures, and the loss of sea ice in Arctic and subarctic oceans impacts the community composition of primary producers with cascading effects on the food web and potentially on carbon export rates. This study analyzes metagenomic shotg...
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2024
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croxfordunivpr:10.1093/ismejo/wrad006 2024-04-07T07:50:37+00:00 Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA Buchwald, Stella Z Herzschuh, Ulrike Nürnberg, Dirk Harms, Lars Stoof-Leichsenring, Kathleen R German Ministry of Education and Research 2024 http://dx.doi.org/10.1093/ismejo/wrad006 https://academic.oup.com/ismej/advance-article-pdf/doi/10.1093/ismejo/wrad006/55147207/wrad006.pdf https://academic.oup.com/ismej/article-pdf/18/1/wrad006/56820968/wrad006.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ The ISME Journal volume 18, issue 1 ISSN 1751-7362 1751-7370 Ecology, Evolution, Behavior and Systematics Microbiology journal-article 2024 croxfordunivpr https://doi.org/10.1093/ismejo/wrad006 2024-03-08T03:09:40Z Abstract Current global warming results in rising sea-water temperatures, and the loss of sea ice in Arctic and subarctic oceans impacts the community composition of primary producers with cascading effects on the food web and potentially on carbon export rates. This study analyzes metagenomic shotgun and diatom rbcL amplicon sequencing data from sedimentary ancient DNA of the subarctic western Bering Sea that records phyto- and zooplankton community changes over the last glacial–interglacial cycles, including the last interglacial period (Eemian). Our data show that interglacial and glacial plankton communities differ, with distinct Eemian and Holocene plankton communities. The generally warm Holocene period is dominated by picosized cyanobacteria and bacteria-feeding heterotrophic protists, while the Eemian period is dominated by eukaryotic picosized chlorophytes and Triparmaceae. By contrast, the glacial period is characterized by microsized phototrophic protists, including sea ice-associated diatoms in the family Bacillariaceae and co-occurring diatom-feeding crustaceous zooplankton. Our deep-time record of plankton community changes reveals a long-term decrease in phytoplankton cell size coeval with increasing temperatures, resembling community changes in the currently warming Bering Sea. The phytoplankton community in the warmer-than-present Eemian period is distinct from modern communities and limits the use of the Eemian as an analog for future climate scenarios. However, under enhanced future warming, the expected shift toward the dominance of small-sized phytoplankton and heterotrophic protists might result in an increased productivity, whereas the community’s potential of carbon export will be decreased, thereby weakening the subarctic Bering Sea’s function as an effective carbon sink. Article in Journal/Newspaper Arctic Bering Sea Global warming Phytoplankton Sea ice Subarctic Zooplankton Oxford University Press Arctic Bering Sea The ISME Journal 18 1 |
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Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics Microbiology |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Microbiology Buchwald, Stella Z Herzschuh, Ulrike Nürnberg, Dirk Harms, Lars Stoof-Leichsenring, Kathleen R Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA |
topic_facet |
Ecology, Evolution, Behavior and Systematics Microbiology |
description |
Abstract Current global warming results in rising sea-water temperatures, and the loss of sea ice in Arctic and subarctic oceans impacts the community composition of primary producers with cascading effects on the food web and potentially on carbon export rates. This study analyzes metagenomic shotgun and diatom rbcL amplicon sequencing data from sedimentary ancient DNA of the subarctic western Bering Sea that records phyto- and zooplankton community changes over the last glacial–interglacial cycles, including the last interglacial period (Eemian). Our data show that interglacial and glacial plankton communities differ, with distinct Eemian and Holocene plankton communities. The generally warm Holocene period is dominated by picosized cyanobacteria and bacteria-feeding heterotrophic protists, while the Eemian period is dominated by eukaryotic picosized chlorophytes and Triparmaceae. By contrast, the glacial period is characterized by microsized phototrophic protists, including sea ice-associated diatoms in the family Bacillariaceae and co-occurring diatom-feeding crustaceous zooplankton. Our deep-time record of plankton community changes reveals a long-term decrease in phytoplankton cell size coeval with increasing temperatures, resembling community changes in the currently warming Bering Sea. The phytoplankton community in the warmer-than-present Eemian period is distinct from modern communities and limits the use of the Eemian as an analog for future climate scenarios. However, under enhanced future warming, the expected shift toward the dominance of small-sized phytoplankton and heterotrophic protists might result in an increased productivity, whereas the community’s potential of carbon export will be decreased, thereby weakening the subarctic Bering Sea’s function as an effective carbon sink. |
author2 |
German Ministry of Education and Research |
format |
Article in Journal/Newspaper |
author |
Buchwald, Stella Z Herzschuh, Ulrike Nürnberg, Dirk Harms, Lars Stoof-Leichsenring, Kathleen R |
author_facet |
Buchwald, Stella Z Herzschuh, Ulrike Nürnberg, Dirk Harms, Lars Stoof-Leichsenring, Kathleen R |
author_sort |
Buchwald, Stella Z |
title |
Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA |
title_short |
Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA |
title_full |
Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA |
title_fullStr |
Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA |
title_full_unstemmed |
Plankton community changes during the last 124 000 years in the subarctic Bering Sea derived from sedimentary ancient DNA |
title_sort |
plankton community changes during the last 124 000 years in the subarctic bering sea derived from sedimentary ancient dna |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/ismejo/wrad006 https://academic.oup.com/ismej/advance-article-pdf/doi/10.1093/ismejo/wrad006/55147207/wrad006.pdf https://academic.oup.com/ismej/article-pdf/18/1/wrad006/56820968/wrad006.pdf |
geographic |
Arctic Bering Sea |
geographic_facet |
Arctic Bering Sea |
genre |
Arctic Bering Sea Global warming Phytoplankton Sea ice Subarctic Zooplankton |
genre_facet |
Arctic Bering Sea Global warming Phytoplankton Sea ice Subarctic Zooplankton |
op_source |
The ISME Journal volume 18, issue 1 ISSN 1751-7362 1751-7370 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/ismejo/wrad006 |
container_title |
The ISME Journal |
container_volume |
18 |
container_issue |
1 |
_version_ |
1795665342064754688 |