Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010
The planktonic microorganism community of Admiralty Bay, Antarctic Peninsula is being monitored since 2002. This study describes composition, size-structure and biomass of the phytoplankton communities observed during early summer 2010/2011 in the area. Organisms were counted by microscopy and score...
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ftunivaleitajai:oai:ojs.periodicos.univali.br:article/4731 2023-05-15T13:43:40+02:00 Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 Barrera Alba, Jose Juan Tenenbaum, Denise Rivera Vanzan, Mariana Tenório, Márcio Murilo Barboza 2016-08-18 application/pdf https://periodicos.univali.br/index.php/bjast/article/view/4731 https://doi.org/10.14210/bjast.v19n3.4731 eng eng UNIVALI https://periodicos.univali.br/index.php/bjast/article/view/4731/5052 https://periodicos.univali.br/index.php/bjast/article/view/4731 doi:10.14210/bjast.v19n3.4731 Copyright (c) 2016 Brazilian Journal of Aquatic Science and Technology Brazilian Journal of Aquatic Science and Technology; Vol. 19 No. 3 (2015): EDIÇÃO ESPECIAL - CONGRESSO BRASILEIRO DE OCEANOGRAFIA; 9-17 Brazilian Journal of Aquatic Science and Technology; v. 19 n. 3 (2015): EDIÇÃO ESPECIAL - CONGRESSO BRASILEIRO DE OCEANOGRAFIA; 9-17 1983-9057 1808-7035 10.14210/bjast.2015vn193 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2016 ftunivaleitajai https://doi.org/10.14210/bjast.v19n3.4731 https://doi.org/10.14210/bjast.2015vn193 2022-07-11T09:14:59Z The planktonic microorganism community of Admiralty Bay, Antarctic Peninsula is being monitored since 2002. This study describes composition, size-structure and biomass of the phytoplankton communities observed during early summer 2010/2011 in the area. Organisms were counted by microscopy and scored as belonging to three size classes: <10 µm, 10 - 80 µm and 80 - 400 µm. In terms of density, this phytoplankton community was dominated by cells < 10 µm (~106 - 107 cells L-1), confirming the increasing presence of small planktonic autotrophs in West Antarctic Peninsula waters. Organisms > 10 µm dominated in terms of biomass (> 50% of Chlorophyll a) with densities of up to 1.6 x 104 cells L-1, which is approximately 0.6 times higher than observed for early summer in recent years. Additionally, our results confirm a previously observed phenomenon whereby large-size phytoplankton (> 80 µm), especially pennate diatoms, are replaced by mid-size centric diatoms (10- 80 µm), such as Thalassiosira spp., and small dinoflagellates (e.g. Prorocentrum antarcticum) during warmer early summers. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula King George Island Portal de Periódicos da Univali (Universidade do Vale do Itajaí) Admiralty Bay Antarctic Antarctic Peninsula King George Island Brazilian Journal of Aquatic Science and Technology 19 3 |
institution |
Open Polar |
collection |
Portal de Periódicos da Univali (Universidade do Vale do Itajaí) |
op_collection_id |
ftunivaleitajai |
language |
English |
description |
The planktonic microorganism community of Admiralty Bay, Antarctic Peninsula is being monitored since 2002. This study describes composition, size-structure and biomass of the phytoplankton communities observed during early summer 2010/2011 in the area. Organisms were counted by microscopy and scored as belonging to three size classes: <10 µm, 10 - 80 µm and 80 - 400 µm. In terms of density, this phytoplankton community was dominated by cells < 10 µm (~106 - 107 cells L-1), confirming the increasing presence of small planktonic autotrophs in West Antarctic Peninsula waters. Organisms > 10 µm dominated in terms of biomass (> 50% of Chlorophyll a) with densities of up to 1.6 x 104 cells L-1, which is approximately 0.6 times higher than observed for early summer in recent years. Additionally, our results confirm a previously observed phenomenon whereby large-size phytoplankton (> 80 µm), especially pennate diatoms, are replaced by mid-size centric diatoms (10- 80 µm), such as Thalassiosira spp., and small dinoflagellates (e.g. Prorocentrum antarcticum) during warmer early summers. |
format |
Article in Journal/Newspaper |
author |
Barrera Alba, Jose Juan Tenenbaum, Denise Rivera Vanzan, Mariana Tenório, Márcio Murilo Barboza |
spellingShingle |
Barrera Alba, Jose Juan Tenenbaum, Denise Rivera Vanzan, Mariana Tenório, Márcio Murilo Barboza Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 |
author_facet |
Barrera Alba, Jose Juan Tenenbaum, Denise Rivera Vanzan, Mariana Tenório, Márcio Murilo Barboza |
author_sort |
Barrera Alba, Jose Juan |
title |
Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 |
title_short |
Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 |
title_full |
Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 |
title_fullStr |
Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 |
title_full_unstemmed |
Composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at King George Island, West Antarctic Peninsula (WAP), during early summer 2010 |
title_sort |
composition, density and size-structure of the autotrophic plankton community in a shallow coastal zone at king george island, west antarctic peninsula (wap), during early summer 2010 |
publisher |
UNIVALI |
publishDate |
2016 |
url |
https://periodicos.univali.br/index.php/bjast/article/view/4731 https://doi.org/10.14210/bjast.v19n3.4731 |
geographic |
Admiralty Bay Antarctic Antarctic Peninsula King George Island |
geographic_facet |
Admiralty Bay Antarctic Antarctic Peninsula King George Island |
genre |
Antarc* Antarctic Antarctic Peninsula King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula King George Island |
op_source |
Brazilian Journal of Aquatic Science and Technology; Vol. 19 No. 3 (2015): EDIÇÃO ESPECIAL - CONGRESSO BRASILEIRO DE OCEANOGRAFIA; 9-17 Brazilian Journal of Aquatic Science and Technology; v. 19 n. 3 (2015): EDIÇÃO ESPECIAL - CONGRESSO BRASILEIRO DE OCEANOGRAFIA; 9-17 1983-9057 1808-7035 10.14210/bjast.2015vn193 |
op_relation |
https://periodicos.univali.br/index.php/bjast/article/view/4731/5052 https://periodicos.univali.br/index.php/bjast/article/view/4731 doi:10.14210/bjast.v19n3.4731 |
op_rights |
Copyright (c) 2016 Brazilian Journal of Aquatic Science and Technology |
op_doi |
https://doi.org/10.14210/bjast.v19n3.4731 https://doi.org/10.14210/bjast.2015vn193 |
container_title |
Brazilian Journal of Aquatic Science and Technology |
container_volume |
19 |
container_issue |
3 |
_version_ |
1766191698822561792 |