Control of Antarctic phytoplankton community composition and standing stock by light availability
Southern Ocean phytoplankton are especially subjected to pronounced seasonal and interannual changes in light availability. Although previous studies have examined the role of light in these environments, very few combined pigment-based taxonomy with flow cytometry to better discriminate the light r...
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ftnioz:oai:imis.nioz.nl:358987 2023-05-15T13:47:57+02:00 Control of Antarctic phytoplankton community composition and standing stock by light availability Biggs, T.E.G. Rozema, P.D. Evans, C. Timmermans, K.R. Meredith, M.P. Pond, D.W. Brussaard, C.P.D. 2022 application/pdf https://www.vliz.be/imisdocs/publications/65/384765.pdf en eng info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s00300-022-03094-5 https://www.vliz.be/imisdocs/publications/65/384765.pdf info:eu-repo/semantics/openAccess %3Ci%3EPolar+Biol.+45%2811%29%3C%2Fi%3E%3A+1635-1653.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-022-03094-5%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-022-03094-5%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftnioz https://doi.org/10.1007/s00300-022-03094-5 2022-11-09T23:19:44Z Southern Ocean phytoplankton are especially subjected to pronounced seasonal and interannual changes in light availability. Although previous studies have examined the role of light in these environments, very few combined pigment-based taxonomy with flow cytometry to better discriminate the light response of various phytoplankton groups. In particular the different populations within the diverse and important taxonomic group of diatoms require further investigation. Six incubation experiments (9–10 days) were performed during the main productive period with naturalseawater collected at the Western Antarctic Peninsula. Standing stock of Phaeocystis spp. cells displayed relatively fast accumulation under all levels of light (low, medium, high; 4–7, 30–50 and 150–200 µmol quanta m −2 s −1 ), whilst the small- and larger-sized diatom populations (4.5 and 20 µm diameter) exhibited faster accumulation in medium and high light. In contrast, intermediate-sized diatoms (11.5 µm diameter) displayed fastest net growth under low light, subsequently dominating the phytoplankton community. Low light was a key factor limiting accumulation and peak phytoplankton biomass, except one incubation displaying relatively high accumulation rates under low light. The 3-week low-light period prior to experimentation likely allowed adaptation to maximize achievable growth and seems a strong determinant of whether the different natural Antarctic phytoplankton populations sustain, thrive or decline. Our study provides improved insight into how light intensity modulates the net response of key Antarctic phytoplankton, both between and within taxonomic groups. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Southern Ocean NIOZ Repository (Royal Netherlands Institute for Sea Research) Antarctic Antarctic Peninsula Southern Ocean Polar Biology 45 11 1635 1653 |
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Open Polar |
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NIOZ Repository (Royal Netherlands Institute for Sea Research) |
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ftnioz |
language |
English |
description |
Southern Ocean phytoplankton are especially subjected to pronounced seasonal and interannual changes in light availability. Although previous studies have examined the role of light in these environments, very few combined pigment-based taxonomy with flow cytometry to better discriminate the light response of various phytoplankton groups. In particular the different populations within the diverse and important taxonomic group of diatoms require further investigation. Six incubation experiments (9–10 days) were performed during the main productive period with naturalseawater collected at the Western Antarctic Peninsula. Standing stock of Phaeocystis spp. cells displayed relatively fast accumulation under all levels of light (low, medium, high; 4–7, 30–50 and 150–200 µmol quanta m −2 s −1 ), whilst the small- and larger-sized diatom populations (4.5 and 20 µm diameter) exhibited faster accumulation in medium and high light. In contrast, intermediate-sized diatoms (11.5 µm diameter) displayed fastest net growth under low light, subsequently dominating the phytoplankton community. Low light was a key factor limiting accumulation and peak phytoplankton biomass, except one incubation displaying relatively high accumulation rates under low light. The 3-week low-light period prior to experimentation likely allowed adaptation to maximize achievable growth and seems a strong determinant of whether the different natural Antarctic phytoplankton populations sustain, thrive or decline. Our study provides improved insight into how light intensity modulates the net response of key Antarctic phytoplankton, both between and within taxonomic groups. |
format |
Article in Journal/Newspaper |
author |
Biggs, T.E.G. Rozema, P.D. Evans, C. Timmermans, K.R. Meredith, M.P. Pond, D.W. Brussaard, C.P.D. |
spellingShingle |
Biggs, T.E.G. Rozema, P.D. Evans, C. Timmermans, K.R. Meredith, M.P. Pond, D.W. Brussaard, C.P.D. Control of Antarctic phytoplankton community composition and standing stock by light availability |
author_facet |
Biggs, T.E.G. Rozema, P.D. Evans, C. Timmermans, K.R. Meredith, M.P. Pond, D.W. Brussaard, C.P.D. |
author_sort |
Biggs, T.E.G. |
title |
Control of Antarctic phytoplankton community composition and standing stock by light availability |
title_short |
Control of Antarctic phytoplankton community composition and standing stock by light availability |
title_full |
Control of Antarctic phytoplankton community composition and standing stock by light availability |
title_fullStr |
Control of Antarctic phytoplankton community composition and standing stock by light availability |
title_full_unstemmed |
Control of Antarctic phytoplankton community composition and standing stock by light availability |
title_sort |
control of antarctic phytoplankton community composition and standing stock by light availability |
publishDate |
2022 |
url |
https://www.vliz.be/imisdocs/publications/65/384765.pdf |
geographic |
Antarctic Antarctic Peninsula Southern Ocean |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_source |
%3Ci%3EPolar+Biol.+45%2811%29%3C%2Fi%3E%3A+1635-1653.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-022-03094-5%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-022-03094-5%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s00300-022-03094-5 https://www.vliz.be/imisdocs/publications/65/384765.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-022-03094-5 |
container_title |
Polar Biology |
container_volume |
45 |
container_issue |
11 |
container_start_page |
1635 |
op_container_end_page |
1653 |
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1766248064682557440 |