Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF
The Arctic Ocean is subject to severe environmental changes, including the massive decline in sea ice due to continuous warming in many regions. Along with these changes, the Arctic Ocean's ecosystem is affected on various scales. The pelagic microbial food web of the Arctic is of particular in...
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ftfrontimediafig:oai:figshare.com:article/13614209 2023-05-15T14:43:17+02:00 Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF Vanessa Lampe Eva-Maria Nöthig Markus Schartau 2021-01-20T09:27:56Z https://doi.org/10.3389/fmars.2020.579880.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatio-Temporal_Variations_in_Community_Size_Structure_of_Arctic_Protist_Plankton_in_the_Fram_Strait_PDF/13614209 unknown doi:10.3389/fmars.2020.579880.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatio-Temporal_Variations_in_Community_Size_Structure_of_Arctic_Protist_Plankton_in_the_Fram_Strait_PDF/13614209 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean protist plankton plankton community structure plankton size kernel density estimates size selective grazing microbial food web size spectra Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmars.2020.579880.s001 2021-01-20T23:56:46Z The Arctic Ocean is subject to severe environmental changes, including the massive decline in sea ice due to continuous warming in many regions. Along with these changes, the Arctic Ocean's ecosystem is affected on various scales. The pelagic microbial food web of the Arctic is of particular interest, because it determines mass transfer to higher trophic levels. In this regard, variations in the size structure of the microbial community reflect changes in size-dependent bottom-up and top-down processes. Here we present analyses of microscopic data that resolve details on composition and cell size of unicellular plankton, based on samples collected between 2016 and 2018 in the Fram Strait. Using the Kernel Density Estimation method, we derived continuous size spectra (from 1 μm to ≈ 200 μm Equivalent Spherical Diameter, ESD) of cell abundance and biovolume. Specific size intervals (3–4, 8–10, 25–40, and 70–100 μm ESD) indicate size-selective predation as well as omnivory. In-between size ranges include loopholes with elevated cell abundance. By considering remote sensing data we could discriminate between polar Arctic- and Atlantic water within the Fram Strait and could relate our size spectra to the seasonal change in chlorophyll-a concentration. Our size spectra disclose the decline in total biovolume from summer to autumn. In October the phytoplankton biovolume size-spectra reveal a clear relative shift toward larger cell sizes (> 30 μm). Our analysis highlights details in size spectra that may help refining allometric relationships and predator-prey dependencies for size-based plankton ecosystem model applications. Dataset Arctic Arctic Ocean Fram Strait Phytoplankton Sea ice Frontiers: Figshare Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean protist plankton plankton community structure plankton size kernel density estimates size selective grazing microbial food web size spectra |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean protist plankton plankton community structure plankton size kernel density estimates size selective grazing microbial food web size spectra Vanessa Lampe Eva-Maria Nöthig Markus Schartau Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean protist plankton plankton community structure plankton size kernel density estimates size selective grazing microbial food web size spectra |
description |
The Arctic Ocean is subject to severe environmental changes, including the massive decline in sea ice due to continuous warming in many regions. Along with these changes, the Arctic Ocean's ecosystem is affected on various scales. The pelagic microbial food web of the Arctic is of particular interest, because it determines mass transfer to higher trophic levels. In this regard, variations in the size structure of the microbial community reflect changes in size-dependent bottom-up and top-down processes. Here we present analyses of microscopic data that resolve details on composition and cell size of unicellular plankton, based on samples collected between 2016 and 2018 in the Fram Strait. Using the Kernel Density Estimation method, we derived continuous size spectra (from 1 μm to ≈ 200 μm Equivalent Spherical Diameter, ESD) of cell abundance and biovolume. Specific size intervals (3–4, 8–10, 25–40, and 70–100 μm ESD) indicate size-selective predation as well as omnivory. In-between size ranges include loopholes with elevated cell abundance. By considering remote sensing data we could discriminate between polar Arctic- and Atlantic water within the Fram Strait and could relate our size spectra to the seasonal change in chlorophyll-a concentration. Our size spectra disclose the decline in total biovolume from summer to autumn. In October the phytoplankton biovolume size-spectra reveal a clear relative shift toward larger cell sizes (> 30 μm). Our analysis highlights details in size spectra that may help refining allometric relationships and predator-prey dependencies for size-based plankton ecosystem model applications. |
format |
Dataset |
author |
Vanessa Lampe Eva-Maria Nöthig Markus Schartau |
author_facet |
Vanessa Lampe Eva-Maria Nöthig Markus Schartau |
author_sort |
Vanessa Lampe |
title |
Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF |
title_short |
Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF |
title_full |
Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF |
title_fullStr |
Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF |
title_full_unstemmed |
Data_Sheet_1_Spatio-Temporal Variations in Community Size Structure of Arctic Protist Plankton in the Fram Strait.PDF |
title_sort |
data_sheet_1_spatio-temporal variations in community size structure of arctic protist plankton in the fram strait.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2020.579880.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatio-Temporal_Variations_in_Community_Size_Structure_of_Arctic_Protist_Plankton_in_the_Fram_Strait_PDF/13614209 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Fram Strait Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Fram Strait Phytoplankton Sea ice |
op_relation |
doi:10.3389/fmars.2020.579880.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Spatio-Temporal_Variations_in_Community_Size_Structure_of_Arctic_Protist_Plankton_in_the_Fram_Strait_PDF/13614209 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.579880.s001 |
_version_ |
1766314965988278272 |