Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay
Despite their wide use in past sea-ice reconstructions, the seasonal, habitat and species-based sources of sedimentary sea-ice proxies are poorly understood. Here, we conduct direct observations of the community composition of diatoms, dinoflagellate cysts and highly branched isoprenoid lipids withi...
Published in: | Communications Earth & Environment |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/356587 2024-01-07T09:41:26+01:00 Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay Luostarinen, Tiia Weckström, Kaarina Ehn, Jens Kamula, Michelle Burson, Amanda Diaz, Aura Masse, Guillaume McGowan, Suzanne Kuzyk, Zou Zou Heikkilä, Maija Ecosystems and Environment Research Programme Helsinki Institute of Sustainability Science (HELSUS) Environmental Change Research Unit (ECRU) 2023-03-28T10:39:04Z 13 application/pdf http://hdl.handle.net/10138/356587 eng eng Springer 10.1038/s43247-023-00719-3 307282 Luostarinen , T , Weckström , K , Ehn , J , Kamula , M , Burson , A , Diaz , A , Masse , G , McGowan , S , Kuzyk , Z Z & Heikkilä , M 2023 , ' Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay ' , Communications earth & environment , vol. 4 , no. 1 , 78 . https://doi.org/10.1038/s43247-023-00719-3 ORCID: /0000-0002-3889-0788/work/132081519 ORCID: /0000-0003-3885-8670/work/132082047 ORCID: /0000-0002-2368-237X/work/132083621 85150753854 44954714-37c2-4c7a-8f7e-c9d32c594fc8 http://hdl.handle.net/10138/356587 000952023600003 cc_by openAccess info:eu-repo/semantics/openAccess 1181 Ecology evolutionary biology Dinoflagellate cysts Manitounuk sound Late quaternary North-atlantic Fresh-water Diatoms Variability Biomarker Quebec Canada Article publishedVersion 2023 ftunivhelsihelda 2023-12-14T00:11:14Z Despite their wide use in past sea-ice reconstructions, the seasonal, habitat and species-based sources of sedimentary sea-ice proxies are poorly understood. Here, we conduct direct observations of the community composition of diatoms, dinoflagellate cysts and highly branched isoprenoid lipids within the sea ice, water column, sediment traps and sediment surface in the Belcher Islands Archipelago, Hudson Bay throughout spring 2019. We find that Arctic diatom and dinoflagellate cysts species commonly used as sea-ice proxies appear to be only indirectly linked to sea-ice conditions, and that the sediment assemblages of these groups overrepresent summertime pelagic blooms. Species contributing to the diverse sea-ice diatom communities are rare in the sediment. Dinoflagellate cysts form a typical Arctic assemblage in the sediment, although they are virtually absent in the sea ice and water column in spring. We also find that certain highly branched isoprenoid lipids that were previously considered indicators of open water, can be produced in sea-ice. We conclude that contextual knowledge and a multiproxy approach are necessary in reconstruction, encouraging further studies on the sources and controls of sea-ice proxy production in different geographic areas. Sedimentary assemblages of biogenic sea-ice proxies incorporate limited representation of the diverse sea-ice connected communities, according to direct springtime observations in the Belcher Islands Archipelago, Hudson Bay, Canada.Despite their wide use in past sea-ice reconstructions, the seasonal, habitat and species-based sources of sedimentary sea-ice proxies are poorly understood. Here, we conduct direct observations of the community composition of diatoms, dinoflagellate cysts and highly branched isoprenoid lipids within the sea ice, water column, sediment traps and sediment surface in the Belcher Islands Archipelago, Hudson Bay throughout spring 2019. We find that Arctic diatom and dinoflagellate cysts species commonly used as sea-ice proxies appear to ... Article in Journal/Newspaper Arctic Belcher Islands Hudson Bay Manitounuk Sound North Atlantic Sea ice HELDA – University of Helsinki Open Repository Arctic Hudson Bay Canada Hudson Belcher ENVELOPE(-94.172,-94.172,57.936,57.936) Belcher Islands ENVELOPE(-79.250,-79.250,56.184,56.184) Manitounuk Sound ENVELOPE(-77.416,-77.416,55.498,55.498) Communications Earth & Environment 4 1 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1181 Ecology evolutionary biology Dinoflagellate cysts Manitounuk sound Late quaternary North-atlantic Fresh-water Diatoms Variability Biomarker Quebec Canada |
spellingShingle |
1181 Ecology evolutionary biology Dinoflagellate cysts Manitounuk sound Late quaternary North-atlantic Fresh-water Diatoms Variability Biomarker Quebec Canada Luostarinen, Tiia Weckström, Kaarina Ehn, Jens Kamula, Michelle Burson, Amanda Diaz, Aura Masse, Guillaume McGowan, Suzanne Kuzyk, Zou Zou Heikkilä, Maija Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay |
topic_facet |
1181 Ecology evolutionary biology Dinoflagellate cysts Manitounuk sound Late quaternary North-atlantic Fresh-water Diatoms Variability Biomarker Quebec Canada |
description |
Despite their wide use in past sea-ice reconstructions, the seasonal, habitat and species-based sources of sedimentary sea-ice proxies are poorly understood. Here, we conduct direct observations of the community composition of diatoms, dinoflagellate cysts and highly branched isoprenoid lipids within the sea ice, water column, sediment traps and sediment surface in the Belcher Islands Archipelago, Hudson Bay throughout spring 2019. We find that Arctic diatom and dinoflagellate cysts species commonly used as sea-ice proxies appear to be only indirectly linked to sea-ice conditions, and that the sediment assemblages of these groups overrepresent summertime pelagic blooms. Species contributing to the diverse sea-ice diatom communities are rare in the sediment. Dinoflagellate cysts form a typical Arctic assemblage in the sediment, although they are virtually absent in the sea ice and water column in spring. We also find that certain highly branched isoprenoid lipids that were previously considered indicators of open water, can be produced in sea-ice. We conclude that contextual knowledge and a multiproxy approach are necessary in reconstruction, encouraging further studies on the sources and controls of sea-ice proxy production in different geographic areas. Sedimentary assemblages of biogenic sea-ice proxies incorporate limited representation of the diverse sea-ice connected communities, according to direct springtime observations in the Belcher Islands Archipelago, Hudson Bay, Canada.Despite their wide use in past sea-ice reconstructions, the seasonal, habitat and species-based sources of sedimentary sea-ice proxies are poorly understood. Here, we conduct direct observations of the community composition of diatoms, dinoflagellate cysts and highly branched isoprenoid lipids within the sea ice, water column, sediment traps and sediment surface in the Belcher Islands Archipelago, Hudson Bay throughout spring 2019. We find that Arctic diatom and dinoflagellate cysts species commonly used as sea-ice proxies appear to ... |
author2 |
Ecosystems and Environment Research Programme Helsinki Institute of Sustainability Science (HELSUS) Environmental Change Research Unit (ECRU) |
format |
Article in Journal/Newspaper |
author |
Luostarinen, Tiia Weckström, Kaarina Ehn, Jens Kamula, Michelle Burson, Amanda Diaz, Aura Masse, Guillaume McGowan, Suzanne Kuzyk, Zou Zou Heikkilä, Maija |
author_facet |
Luostarinen, Tiia Weckström, Kaarina Ehn, Jens Kamula, Michelle Burson, Amanda Diaz, Aura Masse, Guillaume McGowan, Suzanne Kuzyk, Zou Zou Heikkilä, Maija |
author_sort |
Luostarinen, Tiia |
title |
Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay |
title_short |
Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay |
title_full |
Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay |
title_fullStr |
Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay |
title_full_unstemmed |
Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay |
title_sort |
seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in hudson bay |
publisher |
Springer |
publishDate |
2023 |
url |
http://hdl.handle.net/10138/356587 |
long_lat |
ENVELOPE(-94.172,-94.172,57.936,57.936) ENVELOPE(-79.250,-79.250,56.184,56.184) ENVELOPE(-77.416,-77.416,55.498,55.498) |
geographic |
Arctic Hudson Bay Canada Hudson Belcher Belcher Islands Manitounuk Sound |
geographic_facet |
Arctic Hudson Bay Canada Hudson Belcher Belcher Islands Manitounuk Sound |
genre |
Arctic Belcher Islands Hudson Bay Manitounuk Sound North Atlantic Sea ice |
genre_facet |
Arctic Belcher Islands Hudson Bay Manitounuk Sound North Atlantic Sea ice |
op_relation |
10.1038/s43247-023-00719-3 307282 Luostarinen , T , Weckström , K , Ehn , J , Kamula , M , Burson , A , Diaz , A , Masse , G , McGowan , S , Kuzyk , Z Z & Heikkilä , M 2023 , ' Seasonal and habitat-based variations in vertical export of biogenic sea-ice proxies in Hudson Bay ' , Communications earth & environment , vol. 4 , no. 1 , 78 . https://doi.org/10.1038/s43247-023-00719-3 ORCID: /0000-0002-3889-0788/work/132081519 ORCID: /0000-0003-3885-8670/work/132082047 ORCID: /0000-0002-2368-237X/work/132083621 85150753854 44954714-37c2-4c7a-8f7e-c9d32c594fc8 http://hdl.handle.net/10138/356587 000952023600003 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Communications Earth & Environment |
container_volume |
4 |
container_issue |
1 |
_version_ |
1787422237840637952 |