Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms
ABSTRACT Considering that phytoplankton assemblages are good bioindicators of environmental conditions, the sensitivity of the Western Antarctic Peninsula (WAP) to climate change, and the importance of some areas of its islands as Antarctic Specially Managed Areas, this work assembles published data...
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Online Access: | http://dx.doi.org/10.1017/s0032247418000232 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247418000232 |
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crcambridgeupr:10.1017/s0032247418000232 2024-05-19T07:31:33+00:00 Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms Lange, Priscila Kienteca Ligowski, Ryszard Tenenbaum, Denise Rivera 2018 http://dx.doi.org/10.1017/s0032247418000232 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247418000232 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Polar Record volume 54, issue 2, page 158-175 ISSN 0032-2474 1475-3057 journal-article 2018 crcambridgeupr https://doi.org/10.1017/s0032247418000232 2024-05-02T06:50:55Z ABSTRACT Considering that phytoplankton assemblages are good bioindicators of environmental conditions, the sensitivity of the Western Antarctic Peninsula (WAP) to climate change, and the importance of some areas of its islands as Antarctic Specially Managed Areas, this work assembles published datasets on phytoplankton biodiversity and ecology in confined coastal areas (embayments) of King George Island, WAP. Over 33 years (1980–2013), 415 species from 122 genera have been identified to species level, being mostly diatoms (371 species), with 10 new species described with local material (6 diatoms, 4 cyanobacteria). The importance of diatoms was indicated by the frequent occurrence of Corethron pennatum , Pseudogomphonema kamtshaticum , and abundant benthic genera in the plankton (e.g. Navicula , Cocconeis ). The increased contribution of dinoflagellates after 2010 suggests marked changes in the water column. Early-summer blooms differ between the bays' eastern and western shores, with terrestrial melting and wind-driven upwelling inducing the dominance of benthic species at eastern shores, whereas planktonic diatoms ( Thalassiosira , Pseudo-nizschia , and Chaetoceros ) are most abundant along western shores and central areas. The importance of an accurate identification of organisms that are becoming key ecological components of the region is discussed, as recent changes in the microflora may affect the entire marine food web. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula King George Island Polar Record Cambridge University Press Polar Record 54 2 158 175 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
ABSTRACT Considering that phytoplankton assemblages are good bioindicators of environmental conditions, the sensitivity of the Western Antarctic Peninsula (WAP) to climate change, and the importance of some areas of its islands as Antarctic Specially Managed Areas, this work assembles published datasets on phytoplankton biodiversity and ecology in confined coastal areas (embayments) of King George Island, WAP. Over 33 years (1980–2013), 415 species from 122 genera have been identified to species level, being mostly diatoms (371 species), with 10 new species described with local material (6 diatoms, 4 cyanobacteria). The importance of diatoms was indicated by the frequent occurrence of Corethron pennatum , Pseudogomphonema kamtshaticum , and abundant benthic genera in the plankton (e.g. Navicula , Cocconeis ). The increased contribution of dinoflagellates after 2010 suggests marked changes in the water column. Early-summer blooms differ between the bays' eastern and western shores, with terrestrial melting and wind-driven upwelling inducing the dominance of benthic species at eastern shores, whereas planktonic diatoms ( Thalassiosira , Pseudo-nizschia , and Chaetoceros ) are most abundant along western shores and central areas. The importance of an accurate identification of organisms that are becoming key ecological components of the region is discussed, as recent changes in the microflora may affect the entire marine food web. |
format |
Article in Journal/Newspaper |
author |
Lange, Priscila Kienteca Ligowski, Ryszard Tenenbaum, Denise Rivera |
spellingShingle |
Lange, Priscila Kienteca Ligowski, Ryszard Tenenbaum, Denise Rivera Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms |
author_facet |
Lange, Priscila Kienteca Ligowski, Ryszard Tenenbaum, Denise Rivera |
author_sort |
Lange, Priscila Kienteca |
title |
Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms |
title_short |
Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms |
title_full |
Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms |
title_fullStr |
Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms |
title_full_unstemmed |
Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms |
title_sort |
phytoplankton in the embayments of king george island (antarctic peninsula): a review with emphasis on diatoms |
publisher |
Cambridge University Press (CUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1017/s0032247418000232 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247418000232 |
genre |
Antarc* Antarctic Antarctic Peninsula King George Island Polar Record |
genre_facet |
Antarc* Antarctic Antarctic Peninsula King George Island Polar Record |
op_source |
Polar Record volume 54, issue 2, page 158-175 ISSN 0032-2474 1475-3057 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0032247418000232 |
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Polar Record |
container_volume |
54 |
container_issue |
2 |
container_start_page |
158 |
op_container_end_page |
175 |
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1799469407500500992 |