Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front
Carbohydrate dynamics were studied in an algal community dominated by the diatom Fragilariopsis kerguelensis at the Antarctic Polar Front during austral autumn 1999. Water-extractable mono- and polysaccharide concentrations from the particulate fraction were measured at six depths in the upper 100 i...
Published in: | Polar Biology |
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Language: | English |
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2003
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Online Access: | https://hdl.handle.net/11370/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c https://research.rug.nl/en/publications/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c https://doi.org/10.1007/s00300-002-0456-x |
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ftunigroningenpu:oai:pure.rug.nl:publications/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c 2024-06-02T07:58:18+00:00 Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front van Oijen, T. van Leeuwe, M.A. Gieskes, W.W.C. 2003-03 https://hdl.handle.net/11370/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c https://research.rug.nl/en/publications/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c https://doi.org/10.1007/s00300-002-0456-x eng eng https://research.rug.nl/en/publications/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c info:eu-repo/semantics/closedAccess van Oijen , T , van Leeuwe , M A & Gieskes , W W C 2003 , ' Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front ' , Polar Biology , vol. 26 , no. 3 , pp. 195-201 . https://doi.org/10.1007/s00300-002-0456-x SOUTHERN-OCEAN SKELETONEMA-COSTATUM DIEL VARIATION ROSS SEA PHYTOPLANKTON METABOLISM POLYSACCHARIDES BIOMASS PROTEIN SECTOR article 2003 ftunigroningenpu https://doi.org/10.1007/s00300-002-0456-x 2024-05-07T18:17:40Z Carbohydrate dynamics were studied in an algal community dominated by the diatom Fragilariopsis kerguelensis at the Antarctic Polar Front during austral autumn 1999. Water-extractable mono- and polysaccharide concentrations from the particulate fraction were measured at six depths in the upper 100 in at seven stations along a N-S transect (20degreesE, 48-50degreesS) during 2 consecutive days. In addition, field populations were incubated on deck for 18 h at four different light intensities. Polysaccharide concentrations varied between 2.7 and 13.6 mug/l, monosaccharide concentrations between 2.5 and 8.9 mug/l. Near the surface (0-60 in), a diet pattern was observed in the polysaccharide concentration when normalised to the chlorophyll a or the monosaccharide concentration. The deck incubations supported the hypothesis that this pattern resulted from the diurnal accumulation and nocturnal consumption of reserve glucan. More polysaccharides accumulated at high light intensities than at low light intensities, in accordance with the observed decrease in normalised polysaccharide concentration with depth. In addition, the lower concentrations at depth might be explained by consumption: polysaccharides that were accumulated during time spent near the surface were subsequently respired when cells were transported to deeper and dimmer water layers. The variation in carbohydrate pools over-time and depth described here must be considered of ecological relevance to phytoplankton in the Southern Ocean subjected to extended periods of darkness (hours to days) due to vertical mixing and advection. Article in Journal/Newspaper Antarc* Antarctic Polar Biology Ross Sea Southern Ocean University of Groningen research database Antarctic Austral Ross Sea Southern Ocean The Antarctic Polar Biology 26 3 195 201 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
SOUTHERN-OCEAN SKELETONEMA-COSTATUM DIEL VARIATION ROSS SEA PHYTOPLANKTON METABOLISM POLYSACCHARIDES BIOMASS PROTEIN SECTOR |
spellingShingle |
SOUTHERN-OCEAN SKELETONEMA-COSTATUM DIEL VARIATION ROSS SEA PHYTOPLANKTON METABOLISM POLYSACCHARIDES BIOMASS PROTEIN SECTOR van Oijen, T. van Leeuwe, M.A. Gieskes, W.W.C. Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front |
topic_facet |
SOUTHERN-OCEAN SKELETONEMA-COSTATUM DIEL VARIATION ROSS SEA PHYTOPLANKTON METABOLISM POLYSACCHARIDES BIOMASS PROTEIN SECTOR |
description |
Carbohydrate dynamics were studied in an algal community dominated by the diatom Fragilariopsis kerguelensis at the Antarctic Polar Front during austral autumn 1999. Water-extractable mono- and polysaccharide concentrations from the particulate fraction were measured at six depths in the upper 100 in at seven stations along a N-S transect (20degreesE, 48-50degreesS) during 2 consecutive days. In addition, field populations were incubated on deck for 18 h at four different light intensities. Polysaccharide concentrations varied between 2.7 and 13.6 mug/l, monosaccharide concentrations between 2.5 and 8.9 mug/l. Near the surface (0-60 in), a diet pattern was observed in the polysaccharide concentration when normalised to the chlorophyll a or the monosaccharide concentration. The deck incubations supported the hypothesis that this pattern resulted from the diurnal accumulation and nocturnal consumption of reserve glucan. More polysaccharides accumulated at high light intensities than at low light intensities, in accordance with the observed decrease in normalised polysaccharide concentration with depth. In addition, the lower concentrations at depth might be explained by consumption: polysaccharides that were accumulated during time spent near the surface were subsequently respired when cells were transported to deeper and dimmer water layers. The variation in carbohydrate pools over-time and depth described here must be considered of ecological relevance to phytoplankton in the Southern Ocean subjected to extended periods of darkness (hours to days) due to vertical mixing and advection. |
format |
Article in Journal/Newspaper |
author |
van Oijen, T. van Leeuwe, M.A. Gieskes, W.W.C. |
author_facet |
van Oijen, T. van Leeuwe, M.A. Gieskes, W.W.C. |
author_sort |
van Oijen, T. |
title |
Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front |
title_short |
Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front |
title_full |
Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front |
title_fullStr |
Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front |
title_full_unstemmed |
Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front |
title_sort |
variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the antarctic polar front |
publishDate |
2003 |
url |
https://hdl.handle.net/11370/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c https://research.rug.nl/en/publications/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c https://doi.org/10.1007/s00300-002-0456-x |
geographic |
Antarctic Austral Ross Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic Austral Ross Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Polar Biology Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Polar Biology Ross Sea Southern Ocean |
op_source |
van Oijen , T , van Leeuwe , M A & Gieskes , W W C 2003 , ' Variation of particulate carbohydrate pools over time and depth in a diatom-dominated plankton community at the Antarctic Polar Front ' , Polar Biology , vol. 26 , no. 3 , pp. 195-201 . https://doi.org/10.1007/s00300-002-0456-x |
op_relation |
https://research.rug.nl/en/publications/9f4ea673-1f0b-4011-9bb6-ccd5dc764c6c |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00300-002-0456-x |
container_title |
Polar Biology |
container_volume |
26 |
container_issue |
3 |
container_start_page |
195 |
op_container_end_page |
201 |
_version_ |
1800741591513563136 |