Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean
This study assesses the response of phytoplankton assemblages to recent climate change, especially with regard to the shrinking of sea ice in the northern Chukchi Sea of the western Arctic Ocean. Distribution patterns of phytoplankton groups in the late summers of 2008–2010 were analysed based on HP...
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Online Access: | https://doi.org/10.5194/bg-11-1705-2014 https://doaj.org/article/38072a68645d4c33ab6a6935d561e3b4 |
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ftdoajarticles:oai:doaj.org/article:38072a68645d4c33ab6a6935d561e3b4 2023-05-15T14:54:48+02:00 Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean A. Fujiwara T. Hirawake K. Suzuki I. Imai S.-I. Saitoh 2014-04-01T00:00:00Z https://doi.org/10.5194/bg-11-1705-2014 https://doaj.org/article/38072a68645d4c33ab6a6935d561e3b4 EN eng Copernicus Publications http://www.biogeosciences.net/11/1705/2014/bg-11-1705-2014.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-11-1705-2014 https://doaj.org/article/38072a68645d4c33ab6a6935d561e3b4 Biogeosciences, Vol 11, Iss 7, Pp 1705-1716 (2014) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2014 ftdoajarticles https://doi.org/10.5194/bg-11-1705-2014 2022-12-31T10:56:14Z This study assesses the response of phytoplankton assemblages to recent climate change, especially with regard to the shrinking of sea ice in the northern Chukchi Sea of the western Arctic Ocean. Distribution patterns of phytoplankton groups in the late summers of 2008–2010 were analysed based on HPLC pigment signatures and, the following four major algal groups were inferred via multiple regression and cluster analyses: prasinophytes, diatoms, haptophytes and dinoflagellates. A remarkable interannual difference in the distribution pattern of the groups was found in the northern basin area. Haptophytes dominated and dispersed widely in warm surface waters in 2008, whereas prasinophytes dominated in cold water in 2009 and 2010. A difference in the onset date of sea ice retreat was evident among years–the sea ice retreat in 2008 was 1–2 months earlier than in 2009 and 2010. The spatial distribution of early sea ice retreat matched the areas in which a shift in algal community composition was observed. Steel-Dwass's multiple comparison tests were used to assess the physical, chemical and biological parameters of the four clusters. We found a statistically significant difference in temperature between the haptophyte-dominated cluster and the other clusters, suggesting that the change in the phytoplankton communities was related to the earlier sea ice retreat in 2008 and the corollary increase in sea surface temperatures. Longer periods of open water during the summer, which are expected in the future, may affect food webs and biogeochemical cycles in the western Arctic due to shifts in phytoplankton community structure. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Phytoplankton Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Chukchi Sea Biogeosciences 11 7 1705 1716 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 A. Fujiwara T. Hirawake K. Suzuki I. Imai S.-I. Saitoh Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
This study assesses the response of phytoplankton assemblages to recent climate change, especially with regard to the shrinking of sea ice in the northern Chukchi Sea of the western Arctic Ocean. Distribution patterns of phytoplankton groups in the late summers of 2008–2010 were analysed based on HPLC pigment signatures and, the following four major algal groups were inferred via multiple regression and cluster analyses: prasinophytes, diatoms, haptophytes and dinoflagellates. A remarkable interannual difference in the distribution pattern of the groups was found in the northern basin area. Haptophytes dominated and dispersed widely in warm surface waters in 2008, whereas prasinophytes dominated in cold water in 2009 and 2010. A difference in the onset date of sea ice retreat was evident among years–the sea ice retreat in 2008 was 1–2 months earlier than in 2009 and 2010. The spatial distribution of early sea ice retreat matched the areas in which a shift in algal community composition was observed. Steel-Dwass's multiple comparison tests were used to assess the physical, chemical and biological parameters of the four clusters. We found a statistically significant difference in temperature between the haptophyte-dominated cluster and the other clusters, suggesting that the change in the phytoplankton communities was related to the earlier sea ice retreat in 2008 and the corollary increase in sea surface temperatures. Longer periods of open water during the summer, which are expected in the future, may affect food webs and biogeochemical cycles in the western Arctic due to shifts in phytoplankton community structure. |
format |
Article in Journal/Newspaper |
author |
A. Fujiwara T. Hirawake K. Suzuki I. Imai S.-I. Saitoh |
author_facet |
A. Fujiwara T. Hirawake K. Suzuki I. Imai S.-I. Saitoh |
author_sort |
A. Fujiwara |
title |
Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean |
title_short |
Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean |
title_full |
Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean |
title_fullStr |
Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean |
title_full_unstemmed |
Timing of sea ice retreat can alter phytoplankton community structure in the western Arctic Ocean |
title_sort |
timing of sea ice retreat can alter phytoplankton community structure in the western arctic ocean |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/bg-11-1705-2014 https://doaj.org/article/38072a68645d4c33ab6a6935d561e3b4 |
geographic |
Arctic Arctic Ocean Chukchi Sea |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Phytoplankton Sea ice |
op_source |
Biogeosciences, Vol 11, Iss 7, Pp 1705-1716 (2014) |
op_relation |
http://www.biogeosciences.net/11/1705/2014/bg-11-1705-2014.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-11-1705-2014 https://doaj.org/article/38072a68645d4c33ab6a6935d561e3b4 |
op_doi |
https://doi.org/10.5194/bg-11-1705-2014 |
container_title |
Biogeosciences |
container_volume |
11 |
container_issue |
7 |
container_start_page |
1705 |
op_container_end_page |
1716 |
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1766326545658413056 |