Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica
Abstract Phytoplankton is responsible for most primary production in Antarctica, but the short timescale dynamics of its size structure and composition are poorly described and understood. The abundance and composition of phytoplankton in Fildes Bay, western Antarctic Peninsula, was followed for 12...
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Online Access: | http://dx.doi.org/10.1017/s0954102016000699 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102016000699 |
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crcambridgeupr:10.1017/s0954102016000699 2024-03-03T08:39:16+00:00 Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica Egas, Claudia Henríquez-Castillo, Carlos Delherbe, Nathalie Molina, Ernesto Dos Santos, Adriana Lopes Lavin, Paris De La Iglesia, Rodrigo Vaulot, Daniel Trefault, Nicole 2017 http://dx.doi.org/10.1017/s0954102016000699 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102016000699 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 29, issue 3, page 217-228 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2017 crcambridgeupr https://doi.org/10.1017/s0954102016000699 2024-02-08T08:48:43Z Abstract Phytoplankton is responsible for most primary production in Antarctica, but the short timescale dynamics of its size structure and composition are poorly described and understood. The abundance and composition of phytoplankton in Fildes Bay, western Antarctic Peninsula, was followed for 12 days during the summer using a range of methods, including size fractionation of chlorophyll, microscopy, flow cytometry and terminal-restriction fragment length polymorphism (T-RFLP) of the plastid 16S rRNA gene. A rapid increase in biomass and cell abundance occurred in response to a vertical mixing event. This increase also resulted in a shift in composition from diatoms to Prymnesiophyceae, and then back to diatoms as the water column re-stratified. Our results show a strong dominance of nanophytoplankton represented by Thalassiosira and Phaeocystis . The rapid response of the phytoplankton suggests that it is well adapted to short-term environmental changes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Cambridge University Press Antarctic Antarctic Peninsula Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) Antarctic Science 29 3 217 228 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Egas, Claudia Henríquez-Castillo, Carlos Delherbe, Nathalie Molina, Ernesto Dos Santos, Adriana Lopes Lavin, Paris De La Iglesia, Rodrigo Vaulot, Daniel Trefault, Nicole Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Phytoplankton is responsible for most primary production in Antarctica, but the short timescale dynamics of its size structure and composition are poorly described and understood. The abundance and composition of phytoplankton in Fildes Bay, western Antarctic Peninsula, was followed for 12 days during the summer using a range of methods, including size fractionation of chlorophyll, microscopy, flow cytometry and terminal-restriction fragment length polymorphism (T-RFLP) of the plastid 16S rRNA gene. A rapid increase in biomass and cell abundance occurred in response to a vertical mixing event. This increase also resulted in a shift in composition from diatoms to Prymnesiophyceae, and then back to diatoms as the water column re-stratified. Our results show a strong dominance of nanophytoplankton represented by Thalassiosira and Phaeocystis . The rapid response of the phytoplankton suggests that it is well adapted to short-term environmental changes. |
format |
Article in Journal/Newspaper |
author |
Egas, Claudia Henríquez-Castillo, Carlos Delherbe, Nathalie Molina, Ernesto Dos Santos, Adriana Lopes Lavin, Paris De La Iglesia, Rodrigo Vaulot, Daniel Trefault, Nicole |
author_facet |
Egas, Claudia Henríquez-Castillo, Carlos Delherbe, Nathalie Molina, Ernesto Dos Santos, Adriana Lopes Lavin, Paris De La Iglesia, Rodrigo Vaulot, Daniel Trefault, Nicole |
author_sort |
Egas, Claudia |
title |
Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica |
title_short |
Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica |
title_full |
Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica |
title_fullStr |
Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica |
title_full_unstemmed |
Short timescale dynamics of phytoplankton in Fildes Bay, Antarctica |
title_sort |
short timescale dynamics of phytoplankton in fildes bay, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/s0954102016000699 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102016000699 |
long_lat |
ENVELOPE(-58.817,-58.817,-62.217,-62.217) |
geographic |
Antarctic Antarctic Peninsula Fildes |
geographic_facet |
Antarctic Antarctic Peninsula Fildes |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica |
op_source |
Antarctic Science volume 29, issue 3, page 217-228 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102016000699 |
container_title |
Antarctic Science |
container_volume |
29 |
container_issue |
3 |
container_start_page |
217 |
op_container_end_page |
228 |
_version_ |
1792494721172504576 |