Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality
On Arctic shelves, where primary production occurs in both the pelagic and sympagic (ice-associated) habitats, sympagic organic material (OM) can constitute a disproportionate fraction of benthic diets due to higher sinking rates and lower grazing pressure than pelagic OM. Less documented is how sym...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://strathprints.strath.ac.uk/83407/ https://strathprints.strath.ac.uk/83407/1/Cautain_etal_FMS_2022_Uptake_of_sympagic_organic_carbon_by_the_Barents_Sea_benthos_linked_to_sea_ice_seasonality.pdf https://doi.org/10.3389/fmars.2022.1009303 |
id |
ftustrathclyde:oai:strathprints.strath.ac.uk:83407 |
---|---|
record_format |
openpolar |
spelling |
ftustrathclyde:oai:strathprints.strath.ac.uk:83407 2024-05-19T07:35:17+00:00 Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality Cautain, Ivan J. Last, Kim S. McKee, David Bluhm, Bodil A. Renaud, Paul E. Ziegler, Amanda F. Narayanaswamy, Bhavani E. 2022-11-11 text https://strathprints.strath.ac.uk/83407/ https://strathprints.strath.ac.uk/83407/1/Cautain_etal_FMS_2022_Uptake_of_sympagic_organic_carbon_by_the_Barents_Sea_benthos_linked_to_sea_ice_seasonality.pdf https://doi.org/10.3389/fmars.2022.1009303 en eng https://strathprints.strath.ac.uk/83407/1/Cautain_etal_FMS_2022_Uptake_of_sympagic_organic_carbon_by_the_Barents_Sea_benthos_linked_to_sea_ice_seasonality.pdf Cautain, Ivan J. and Last, Kim S. and McKee, David <https://strathprints.strath.ac.uk/view/author/106862.html> and Bluhm, Bodil A. and Renaud, Paul E. and Ziegler, Amanda F. and Narayanaswamy, Bhavani E. (2022 <https://strathprints.strath.ac.uk/view/year/2022.html>) Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality. Frontiers in Marine Science <https://strathprints.strath.ac.uk/view/publications/Frontiers_in_Marine_Science.html>, 9. 1009303. ISSN 2296-7745 cc_by Oceanography Article PeerReviewed 2022 ftustrathclyde https://doi.org/10.3389/fmars.2022.1009303 2024-04-24T00:14:49Z On Arctic shelves, where primary production occurs in both the pelagic and sympagic (ice-associated) habitats, sympagic organic material (OM) can constitute a disproportionate fraction of benthic diets due to higher sinking rates and lower grazing pressure than pelagic OM. Less documented is how sympagic OM assimilation across feeding guilds varies seasonally and in relation to sea ice duation. We therefore investigated the relative abundance of sympagic vs pelagic OM in Barents Sea shelf megabenthos in the summer and winter of 2018 and 2019, from 10 stations where sea ice duration ranged from 0 to 245 days per year. We use highly branched isoprenoids, which are lipid biomarkers produced with distinct molecular structures by diatoms in sea ice and the water column, to determine the ratio of sympagic-to-pelagic OM assimilated by benthic organisms. From 114 samples of 25 taxa analysed, we found that the proportion of sympagic OM assimilated ranged from 0.4% to 95.8% and correlated strongly (r2 = 0.754) with the duration of sea ice cover. The effect of sea ice duration was more evident in fauna collected during summer than winter, indicating that sympagic signals are more evident in the summer than in the winter at higher latitudes. Our data show that sympagic production can supply a high fraction of carbon for Barents Sea benthos, although this is highly variable and likely dependent on availability and patchiness of sympagic OM deposition. These results are comparable to similar studies conducted on benthos in the Pacific Arctic and highlight the variable importance of sympagic OM in the seasonal ice zone of Arctic inflow shelves, which are the Arctic regions with highest rates of sea ice loss. Article in Journal/Newspaper Arctic Barents Sea Pacific Arctic Sea ice University of Strathclyde Glasgow: Strathprints Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
University of Strathclyde Glasgow: Strathprints |
op_collection_id |
ftustrathclyde |
language |
English |
topic |
Oceanography |
spellingShingle |
Oceanography Cautain, Ivan J. Last, Kim S. McKee, David Bluhm, Bodil A. Renaud, Paul E. Ziegler, Amanda F. Narayanaswamy, Bhavani E. Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality |
topic_facet |
Oceanography |
description |
On Arctic shelves, where primary production occurs in both the pelagic and sympagic (ice-associated) habitats, sympagic organic material (OM) can constitute a disproportionate fraction of benthic diets due to higher sinking rates and lower grazing pressure than pelagic OM. Less documented is how sympagic OM assimilation across feeding guilds varies seasonally and in relation to sea ice duation. We therefore investigated the relative abundance of sympagic vs pelagic OM in Barents Sea shelf megabenthos in the summer and winter of 2018 and 2019, from 10 stations where sea ice duration ranged from 0 to 245 days per year. We use highly branched isoprenoids, which are lipid biomarkers produced with distinct molecular structures by diatoms in sea ice and the water column, to determine the ratio of sympagic-to-pelagic OM assimilated by benthic organisms. From 114 samples of 25 taxa analysed, we found that the proportion of sympagic OM assimilated ranged from 0.4% to 95.8% and correlated strongly (r2 = 0.754) with the duration of sea ice cover. The effect of sea ice duration was more evident in fauna collected during summer than winter, indicating that sympagic signals are more evident in the summer than in the winter at higher latitudes. Our data show that sympagic production can supply a high fraction of carbon for Barents Sea benthos, although this is highly variable and likely dependent on availability and patchiness of sympagic OM deposition. These results are comparable to similar studies conducted on benthos in the Pacific Arctic and highlight the variable importance of sympagic OM in the seasonal ice zone of Arctic inflow shelves, which are the Arctic regions with highest rates of sea ice loss. |
format |
Article in Journal/Newspaper |
author |
Cautain, Ivan J. Last, Kim S. McKee, David Bluhm, Bodil A. Renaud, Paul E. Ziegler, Amanda F. Narayanaswamy, Bhavani E. |
author_facet |
Cautain, Ivan J. Last, Kim S. McKee, David Bluhm, Bodil A. Renaud, Paul E. Ziegler, Amanda F. Narayanaswamy, Bhavani E. |
author_sort |
Cautain, Ivan J. |
title |
Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality |
title_short |
Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality |
title_full |
Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality |
title_fullStr |
Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality |
title_full_unstemmed |
Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality |
title_sort |
uptake of sympagic organic carbon by the barents sea benthos linked to sea ice seasonality |
publishDate |
2022 |
url |
https://strathprints.strath.ac.uk/83407/ https://strathprints.strath.ac.uk/83407/1/Cautain_etal_FMS_2022_Uptake_of_sympagic_organic_carbon_by_the_Barents_Sea_benthos_linked_to_sea_ice_seasonality.pdf https://doi.org/10.3389/fmars.2022.1009303 |
genre |
Arctic Barents Sea Pacific Arctic Sea ice |
genre_facet |
Arctic Barents Sea Pacific Arctic Sea ice |
op_relation |
https://strathprints.strath.ac.uk/83407/1/Cautain_etal_FMS_2022_Uptake_of_sympagic_organic_carbon_by_the_Barents_Sea_benthos_linked_to_sea_ice_seasonality.pdf Cautain, Ivan J. and Last, Kim S. and McKee, David <https://strathprints.strath.ac.uk/view/author/106862.html> and Bluhm, Bodil A. and Renaud, Paul E. and Ziegler, Amanda F. and Narayanaswamy, Bhavani E. (2022 <https://strathprints.strath.ac.uk/view/year/2022.html>) Uptake of sympagic organic carbon by the Barents Sea benthos linked to sea ice seasonality. Frontiers in Marine Science <https://strathprints.strath.ac.uk/view/publications/Frontiers_in_Marine_Science.html>, 9. 1009303. ISSN 2296-7745 |
op_rights |
cc_by |
op_doi |
https://doi.org/10.3389/fmars.2022.1009303 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1799473844015071232 |