Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF
Amino acids (AA) and carbohydrates (CHO) are important components of the marine organic carbon cycle. Produced mainly by phytoplankton as part of the particulate organic carbon (POC) fraction, these compounds can be released into the outer medium where they become part of the dissolved organic carbo...
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ftfrontimediafig:oai:figshare.com:article/14893221 2023-05-15T14:58:13+02:00 Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF Julia Grosse Eva-Maria Nöthig Sinhué Torres-Valdés Anja Engel 2021-07-01T15:56:22Z https://doi.org/10.3389/fmars.2021.684675.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Summertime_Amino_Acid_and_Carbohydrate_Patterns_in_Particulate_and_Dissolved_Organic_Carbon_Across_Fram_Strait_PDF/14893221 unknown doi:10.3389/fmars.2021.684675.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Summertime_Amino_Acid_and_Carbohydrate_Patterns_in_Particulate_and_Dissolved_Organic_Carbon_Across_Fram_Strait_PDF/14893221 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean organic matter cycling microbial loop organic carbon essential amino acids neutral sugars particulate matter size fraction Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmars.2021.684675.s001 2021-07-07T23:00:47Z Amino acids (AA) and carbohydrates (CHO) are important components of the marine organic carbon cycle. Produced mainly by phytoplankton as part of the particulate organic carbon (POC) fraction, these compounds can be released into the outer medium where they become part of the dissolved organic carbon (DOC) pool and are rapidly taken up by heterotrophs (e.g., bacteria). We investigated the quantity and quality of POC and DOC, AA and CHO composition in both pools in three different water masses in the Fram Strait (Arctic Ocean) in summer 2017. Polar Waters and Atlantic Waters showed similar concentrations of particulate and dissolved AA and CHO, despite Polar Waters showing the highest DOC concentrations. In Mixed Waters, where the two water masses mix with each other and with melting sea ice, the concentrations of particulate and dissolved AA and CHO were highest. AA and CHO composition differed substantially between the particulate and dissolved fractions. The particulate fraction (>0.7 μm) was enriched in essential AA and the CHO galactose, xylose/mannose, and muramic acid. In the dissolved fraction non-essential AA, several neutral CHO, and acidic and amino CHO were enriched. We further investigated different size fractions of the particulate matter using a separate size fractionation approach (0.2–0.7 μm, 0.7–10 μm and >10 μm). The chemical composition of the 0.2–0.7 μm size-fraction had a higher contribution of non-essential AA and acidic and amino sugars, setting them apart from the 0.7–10 μm and >10 μm fractions, which showed the same composition. We suggest that the relative differences observed between different size fractions and DOC with regards to AA and CHO composition can be used to evaluate the state of organic matter processing and evaluate the contribution of autotrophic phytoplankton or more heterotrophic biomass. In the future, changing conditions in the Central Arctic Ocean (Atlantification, warming, decreasing ice concentrations) may increase primary production and consequently ... 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 organic matter cycling microbial loop organic carbon essential amino acids neutral sugars particulate matter size fraction |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean organic matter cycling microbial loop organic carbon essential amino acids neutral sugars particulate matter size fraction Julia Grosse Eva-Maria Nöthig Sinhué Torres-Valdés Anja Engel Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Arctic Ocean organic matter cycling microbial loop organic carbon essential amino acids neutral sugars particulate matter size fraction |
description |
Amino acids (AA) and carbohydrates (CHO) are important components of the marine organic carbon cycle. Produced mainly by phytoplankton as part of the particulate organic carbon (POC) fraction, these compounds can be released into the outer medium where they become part of the dissolved organic carbon (DOC) pool and are rapidly taken up by heterotrophs (e.g., bacteria). We investigated the quantity and quality of POC and DOC, AA and CHO composition in both pools in three different water masses in the Fram Strait (Arctic Ocean) in summer 2017. Polar Waters and Atlantic Waters showed similar concentrations of particulate and dissolved AA and CHO, despite Polar Waters showing the highest DOC concentrations. In Mixed Waters, where the two water masses mix with each other and with melting sea ice, the concentrations of particulate and dissolved AA and CHO were highest. AA and CHO composition differed substantially between the particulate and dissolved fractions. The particulate fraction (>0.7 μm) was enriched in essential AA and the CHO galactose, xylose/mannose, and muramic acid. In the dissolved fraction non-essential AA, several neutral CHO, and acidic and amino CHO were enriched. We further investigated different size fractions of the particulate matter using a separate size fractionation approach (0.2–0.7 μm, 0.7–10 μm and >10 μm). The chemical composition of the 0.2–0.7 μm size-fraction had a higher contribution of non-essential AA and acidic and amino sugars, setting them apart from the 0.7–10 μm and >10 μm fractions, which showed the same composition. We suggest that the relative differences observed between different size fractions and DOC with regards to AA and CHO composition can be used to evaluate the state of organic matter processing and evaluate the contribution of autotrophic phytoplankton or more heterotrophic biomass. In the future, changing conditions in the Central Arctic Ocean (Atlantification, warming, decreasing ice concentrations) may increase primary production and consequently ... |
format |
Dataset |
author |
Julia Grosse Eva-Maria Nöthig Sinhué Torres-Valdés Anja Engel |
author_facet |
Julia Grosse Eva-Maria Nöthig Sinhué Torres-Valdés Anja Engel |
author_sort |
Julia Grosse |
title |
Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF |
title_short |
Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF |
title_full |
Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF |
title_fullStr |
Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF |
title_full_unstemmed |
Data_Sheet_1_Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait.PDF |
title_sort |
data_sheet_1_summertime amino acid and carbohydrate patterns in particulate and dissolved organic carbon across fram strait.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.684675.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Summertime_Amino_Acid_and_Carbohydrate_Patterns_in_Particulate_and_Dissolved_Organic_Carbon_Across_Fram_Strait_PDF/14893221 |
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.2021.684675.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Summertime_Amino_Acid_and_Carbohydrate_Patterns_in_Particulate_and_Dissolved_Organic_Carbon_Across_Fram_Strait_PDF/14893221 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2021.684675.s001 |
_version_ |
1766330300587048960 |