Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea
Small phytoplankton are anticipated to be more important in a recently warming and freshening ocean condition. However, little information on the contribution of small phytoplankton to overall phytoplankton production is currently available in the Amundsen Sea. To determine the contributions of smal...
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Copernicus Publications
2017
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Online Access: | https://doi.org/10.5194/bg-14-3705-2017 https://doaj.org/article/07ed0237133a4bd2b43e934f5523a80d |
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ftdoajarticles:oai:doaj.org/article:07ed0237133a4bd2b43e934f5523a80d 2023-05-15T13:23:50+02:00 Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea S. H. Lee B. K. Kim Y. J. Lim H. Joo J. J. Kang D. Lee J. Park S.-Y. Ha 2017-08-01T00:00:00Z https://doi.org/10.5194/bg-14-3705-2017 https://doaj.org/article/07ed0237133a4bd2b43e934f5523a80d EN eng Copernicus Publications https://www.biogeosciences.net/14/3705/2017/bg-14-3705-2017.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-14-3705-2017 1726-4170 1726-4189 https://doaj.org/article/07ed0237133a4bd2b43e934f5523a80d Biogeosciences, Vol 14, Pp 3705-3713 (2017) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.5194/bg-14-3705-2017 2022-12-31T12:22:13Z Small phytoplankton are anticipated to be more important in a recently warming and freshening ocean condition. However, little information on the contribution of small phytoplankton to overall phytoplankton production is currently available in the Amundsen Sea. To determine the contributions of small phytoplankton to total biomass and primary production, carbon and nitrogen uptake rates of total and small phytoplankton were obtained from 12 productivity stations in the Amundsen Sea. The daily carbon uptake rates of total phytoplankton averaged in this study were 0.42 g C m −2 d −1 (SD = ± 0.30 g C m −2 d −1 ) and 0.84 g C m −2 d −1 (SD = ± 0.18 g C m −2 d −1 ) for non-polynya and polynya regions, respectively, whereas the daily total nitrogen (nitrate and ammonium) uptake rates were 0.12 g N m −2 d −1 (SD = ± 0.09 g N m −2 d −1 ) and 0.21 g N m −2 d −1 (SD = ± 0.11 g N m −2 d −1 ), respectively, for non-polynya and polynya regions, all of which were within the ranges reported previously. Small phytoplankton contributed 26.9 and 27.7 % to the total carbon and nitrogen uptake rates of phytoplankton in this study, respectively, which were relatively higher than the chlorophyll a contribution (19.4 %) of small phytoplankton. For a comparison of different regions, the contributions for chlorophyll a concentration and primary production of small phytoplankton averaged from all the non-polynya stations were 42.4 and 50.8 %, which were significantly higher than those (7.9 and 14.9 %, respectively) in the polynya region. A strong negative correlation ( r 2 = 0. 790, p < 0. 05) was found between the contributions of small phytoplankton and the total daily primary production of phytoplankton in this study. This finding implies that daily primary production decreases as small phytoplankton contribution increases, which is mainly due to the lower carbon uptake rate of small phytoplankton than large phytoplankton. Article in Journal/Newspaper Amundsen Sea Directory of Open Access Journals: DOAJ Articles Amundsen Sea Biogeosciences 14 15 3705 3713 |
institution |
Open Polar |
collection |
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 S. H. Lee B. K. Kim Y. J. Lim H. Joo J. J. Kang D. Lee J. Park S.-Y. Ha Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Small phytoplankton are anticipated to be more important in a recently warming and freshening ocean condition. However, little information on the contribution of small phytoplankton to overall phytoplankton production is currently available in the Amundsen Sea. To determine the contributions of small phytoplankton to total biomass and primary production, carbon and nitrogen uptake rates of total and small phytoplankton were obtained from 12 productivity stations in the Amundsen Sea. The daily carbon uptake rates of total phytoplankton averaged in this study were 0.42 g C m −2 d −1 (SD = ± 0.30 g C m −2 d −1 ) and 0.84 g C m −2 d −1 (SD = ± 0.18 g C m −2 d −1 ) for non-polynya and polynya regions, respectively, whereas the daily total nitrogen (nitrate and ammonium) uptake rates were 0.12 g N m −2 d −1 (SD = ± 0.09 g N m −2 d −1 ) and 0.21 g N m −2 d −1 (SD = ± 0.11 g N m −2 d −1 ), respectively, for non-polynya and polynya regions, all of which were within the ranges reported previously. Small phytoplankton contributed 26.9 and 27.7 % to the total carbon and nitrogen uptake rates of phytoplankton in this study, respectively, which were relatively higher than the chlorophyll a contribution (19.4 %) of small phytoplankton. For a comparison of different regions, the contributions for chlorophyll a concentration and primary production of small phytoplankton averaged from all the non-polynya stations were 42.4 and 50.8 %, which were significantly higher than those (7.9 and 14.9 %, respectively) in the polynya region. A strong negative correlation ( r 2 = 0. 790, p < 0. 05) was found between the contributions of small phytoplankton and the total daily primary production of phytoplankton in this study. This finding implies that daily primary production decreases as small phytoplankton contribution increases, which is mainly due to the lower carbon uptake rate of small phytoplankton than large phytoplankton. |
format |
Article in Journal/Newspaper |
author |
S. H. Lee B. K. Kim Y. J. Lim H. Joo J. J. Kang D. Lee J. Park S.-Y. Ha |
author_facet |
S. H. Lee B. K. Kim Y. J. Lim H. Joo J. J. Kang D. Lee J. Park S.-Y. Ha |
author_sort |
S. H. Lee |
title |
Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea |
title_short |
Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea |
title_full |
Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea |
title_fullStr |
Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea |
title_full_unstemmed |
Small phytoplankton contribution to the standing stocks and the total primary production in the Amundsen Sea |
title_sort |
small phytoplankton contribution to the standing stocks and the total primary production in the amundsen sea |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/bg-14-3705-2017 https://doaj.org/article/07ed0237133a4bd2b43e934f5523a80d |
geographic |
Amundsen Sea |
geographic_facet |
Amundsen Sea |
genre |
Amundsen Sea |
genre_facet |
Amundsen Sea |
op_source |
Biogeosciences, Vol 14, Pp 3705-3713 (2017) |
op_relation |
https://www.biogeosciences.net/14/3705/2017/bg-14-3705-2017.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-14-3705-2017 1726-4170 1726-4189 https://doaj.org/article/07ed0237133a4bd2b43e934f5523a80d |
op_doi |
https://doi.org/10.5194/bg-14-3705-2017 |
container_title |
Biogeosciences |
container_volume |
14 |
container_issue |
15 |
container_start_page |
3705 |
op_container_end_page |
3713 |
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1766375699088670720 |