STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1
ABSTRACT The distribution and production of transparent exopolymer particles (TEPs) were studied quantitatively both in cultures of Phaeocystis antarctica Karsten (Prymnesiophyceae) and in natural phytoplankton assemblages in the Ross Sea, Antarctica. TEP production in culture was a function of grow...
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crwiley:10.1111/j.0022-3646.1997.00368.x 2024-09-15T17:41:35+00:00 STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 Hong, Ying Smith, Walker O. White, Ann‐Maree 1997 http://dx.doi.org/10.1111/j.0022-3646.1997.00368.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1997.00368.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1997.00368.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 33, issue 3, page 368-376 ISSN 0022-3646 1529-8817 journal-article 1997 crwiley https://doi.org/10.1111/j.0022-3646.1997.00368.x 2024-07-18T04:24:19Z ABSTRACT The distribution and production of transparent exopolymer particles (TEPs) were studied quantitatively both in cultures of Phaeocystis antarctica Karsten (Prymnesiophyceae) and in natural phytoplankton assemblages in the Ross Sea, Antarctica. TEP production in culture was a function of growth rate and photosynthetic activity and was strongly influenced by photon flux density. The concentrations of TEP measured during a bloom, dominated by P. antarctica, were higher than those produced by coastal diatom blooms and were correlated with chlorophyll a (Chl a), being low at Chl a levels below 3 μgL −1 but increasing rapidly at greater Chl a concentrations. Because higher chlorophyll hek are dominated 4 larger P. antarctica colonies, this relationship suggests that TEP was produced primarily by sloughing and disintegration of the colonial matrix. TEP concentrations (both absolute and relative to Chl a) increased as the bloom's biomass increased. Vertical distributions of TEP and Chl a showed TEP: chlorophyll maxima at the bottom of the water column at most stations. Because TEP and floc formation are tightly coupled, we suggest that mucous flocs derived from TEP, rather than intact P. antarctica colonies, are the dominant component of aggregates and subsequent organic carbon vertical flux. Article in Journal/Newspaper Antarc* Antarctica Ross Sea Wiley Online Library Journal of Phycology 33 3 368 376 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT The distribution and production of transparent exopolymer particles (TEPs) were studied quantitatively both in cultures of Phaeocystis antarctica Karsten (Prymnesiophyceae) and in natural phytoplankton assemblages in the Ross Sea, Antarctica. TEP production in culture was a function of growth rate and photosynthetic activity and was strongly influenced by photon flux density. The concentrations of TEP measured during a bloom, dominated by P. antarctica, were higher than those produced by coastal diatom blooms and were correlated with chlorophyll a (Chl a), being low at Chl a levels below 3 μgL −1 but increasing rapidly at greater Chl a concentrations. Because higher chlorophyll hek are dominated 4 larger P. antarctica colonies, this relationship suggests that TEP was produced primarily by sloughing and disintegration of the colonial matrix. TEP concentrations (both absolute and relative to Chl a) increased as the bloom's biomass increased. Vertical distributions of TEP and Chl a showed TEP: chlorophyll maxima at the bottom of the water column at most stations. Because TEP and floc formation are tightly coupled, we suggest that mucous flocs derived from TEP, rather than intact P. antarctica colonies, are the dominant component of aggregates and subsequent organic carbon vertical flux. |
format |
Article in Journal/Newspaper |
author |
Hong, Ying Smith, Walker O. White, Ann‐Maree |
spellingShingle |
Hong, Ying Smith, Walker O. White, Ann‐Maree STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 |
author_facet |
Hong, Ying Smith, Walker O. White, Ann‐Maree |
author_sort |
Hong, Ying |
title |
STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 |
title_short |
STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 |
title_full |
STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 |
title_fullStr |
STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 |
title_full_unstemmed |
STUDIES ON TRANSPARENT EXOPOLYMER PARTICLES (TEP) PRODUCED IN THE ROSS SEA (ANTARCTICA) AND BY PHAEOCYSTIS ANTARCTICA(PRYMNESIOPHYCEAE) 1 |
title_sort |
studies on transparent exopolymer particles (tep) produced in the ross sea (antarctica) and by phaeocystis antarctica(prymnesiophyceae) 1 |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.1111/j.0022-3646.1997.00368.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1997.00368.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1997.00368.x |
genre |
Antarc* Antarctica Ross Sea |
genre_facet |
Antarc* Antarctica Ross Sea |
op_source |
Journal of Phycology volume 33, issue 3, page 368-376 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0022-3646.1997.00368.x |
container_title |
Journal of Phycology |
container_volume |
33 |
container_issue |
3 |
container_start_page |
368 |
op_container_end_page |
376 |
_version_ |
1810487804655828992 |