Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012.
Information on recent photosynthetic biomass distribution and biogeography of Arctic marine pico-eukaryotes (0.2-3 μm) is needed to better understand consequences of environmental change for Arctic marine ecosystems. We analysed pico-eukaryote biomass and community composition in Fram Strait and lar...
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ftdoajarticles:oai:doaj.org/article:79415819f56b42c3a48e683a8ad6e437 2023-05-15T13:22:44+02:00 Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. Katja Metfies Wilken-Jon von Appen Estelle Kilias Anja Nicolaus Eva-Maria Nöthig 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0148512 https://doaj.org/article/79415819f56b42c3a48e683a8ad6e437 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4760976?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0148512 https://doaj.org/article/79415819f56b42c3a48e683a8ad6e437 PLoS ONE, Vol 11, Iss 2, p e0148512 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0148512 2022-12-31T04:15:57Z Information on recent photosynthetic biomass distribution and biogeography of Arctic marine pico-eukaryotes (0.2-3 μm) is needed to better understand consequences of environmental change for Arctic marine ecosystems. We analysed pico-eukaryote biomass and community composition in Fram Strait and large parts of the Central Arctic Ocean (Nansen Basin, Amundsen Basin) using chlorophyll a (Chl a) measurements, automated ribosomal intergenic spacer analysis (ARISA) and 454-pyrosequencing. Samples were collected during summer 2012, the year with the most recent record sea ice minimum. Chl a concentrations were highest in eastern Fram Strait and pico-plankton accounted for 60-90% of Chl a biomass during the observation period. ARISA-patterns and 454-pyrosequencing revealed that pico-eukaryote distribution is closely related to water mass distribution in the euphotic zone of the Arctic Ocean. Phaeocystaceae, Micromonas sp., Dinophyceae and Syndiniales constitute a high proportion of sequence reads, while sequence abundance of autotrophic Phaeocystaceae and mixotrophic Micromonas sp. was inversely correlated. Highest sequence abundances of Phaeocystaceae were observed in the warm Atlantic Waters in Fram Strait, while Micromonas sp. dominated the abundant biosphere in the arctic halocline. Our results are of particular interest considering existing hypotheses that environmental conditions in Nansen Basin might become more similar to the current conditions in Fram Strait. We propose that in response, biodiversity and biomass of pico-eukaryotes in Nansen Basin could resemble those currently observed in Fram Strait in the future. This would significantly alter biogeochemical cycles in a large part of the Central Arctic Ocean. Article in Journal/Newspaper amundsen basin Arctic Arctic Ocean Fram Strait Nansen Basin Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Amundsen Basin ENVELOPE(74.000,74.000,87.000,87.000) PLOS ONE 11 2 e0148512 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Katja Metfies Wilken-Jon von Appen Estelle Kilias Anja Nicolaus Eva-Maria Nöthig Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. |
topic_facet |
Medicine R Science Q |
description |
Information on recent photosynthetic biomass distribution and biogeography of Arctic marine pico-eukaryotes (0.2-3 μm) is needed to better understand consequences of environmental change for Arctic marine ecosystems. We analysed pico-eukaryote biomass and community composition in Fram Strait and large parts of the Central Arctic Ocean (Nansen Basin, Amundsen Basin) using chlorophyll a (Chl a) measurements, automated ribosomal intergenic spacer analysis (ARISA) and 454-pyrosequencing. Samples were collected during summer 2012, the year with the most recent record sea ice minimum. Chl a concentrations were highest in eastern Fram Strait and pico-plankton accounted for 60-90% of Chl a biomass during the observation period. ARISA-patterns and 454-pyrosequencing revealed that pico-eukaryote distribution is closely related to water mass distribution in the euphotic zone of the Arctic Ocean. Phaeocystaceae, Micromonas sp., Dinophyceae and Syndiniales constitute a high proportion of sequence reads, while sequence abundance of autotrophic Phaeocystaceae and mixotrophic Micromonas sp. was inversely correlated. Highest sequence abundances of Phaeocystaceae were observed in the warm Atlantic Waters in Fram Strait, while Micromonas sp. dominated the abundant biosphere in the arctic halocline. Our results are of particular interest considering existing hypotheses that environmental conditions in Nansen Basin might become more similar to the current conditions in Fram Strait. We propose that in response, biodiversity and biomass of pico-eukaryotes in Nansen Basin could resemble those currently observed in Fram Strait in the future. This would significantly alter biogeochemical cycles in a large part of the Central Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Katja Metfies Wilken-Jon von Appen Estelle Kilias Anja Nicolaus Eva-Maria Nöthig |
author_facet |
Katja Metfies Wilken-Jon von Appen Estelle Kilias Anja Nicolaus Eva-Maria Nöthig |
author_sort |
Katja Metfies |
title |
Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. |
title_short |
Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. |
title_full |
Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. |
title_fullStr |
Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. |
title_full_unstemmed |
Biogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012. |
title_sort |
biogeography and photosynthetic biomass of arctic marine pico-eukaroytes during summer of the record sea ice minimum 2012. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0148512 https://doaj.org/article/79415819f56b42c3a48e683a8ad6e437 |
long_lat |
ENVELOPE(74.000,74.000,87.000,87.000) |
geographic |
Arctic Arctic Ocean Amundsen Basin |
geographic_facet |
Arctic Arctic Ocean Amundsen Basin |
genre |
amundsen basin Arctic Arctic Ocean Fram Strait Nansen Basin Sea ice |
genre_facet |
amundsen basin Arctic Arctic Ocean Fram Strait Nansen Basin Sea ice |
op_source |
PLoS ONE, Vol 11, Iss 2, p e0148512 (2016) |
op_relation |
http://europepmc.org/articles/PMC4760976?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0148512 https://doaj.org/article/79415819f56b42c3a48e683a8ad6e437 |
op_doi |
https://doi.org/10.1371/journal.pone.0148512 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
2 |
container_start_page |
e0148512 |
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1766366677701754880 |