Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula
Abstract Diatoms are successful in occupying a wide range of ecological niches and biomes along the global ocean. Although there is a recognized importance of diatoms for the Southern Ocean ecosystems and biogeochemical cycles, the current knowledge on their ecology and distribution along the impact...
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ftdoajarticles:oai:doaj.org/article:7674017925114f4889e7336ccfffc583 2023-05-15T13:44:17+02:00 Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula RAUL RODRIGO COSTA CARLOS RAFAEL B. MENDES MÁRCIO S. DE SOUZA VIRGINIA MARIA TAVANO EDUARDO R. SECCHI 2022-02-01T00:00:00Z https://doi.org/10.1590/0001-3765202220210584 https://doaj.org/article/7674017925114f4889e7336ccfffc583 EN eng Academia Brasileira de Ciências http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000200904&lng=en&tlng=en http://www.scielo.br/pdf/aabc/v94s1/0001-3765-aabc-94-s1-e20210584.pdf https://doaj.org/toc/1678-2690 1678-2690 doi:10.1590/0001-3765202220210584 https://doaj.org/article/7674017925114f4889e7336ccfffc583 Anais da Academia Brasileira de Ciências, Vol 94, Iss suppl 1 (2022) Southern Ocean phytoplankton diatoms HPLC-CHEMTAX microscopy Science Q article 2022 ftdoajarticles https://doi.org/10.1590/0001-3765202220210584 2022-12-31T16:31:48Z Abstract Diatoms are successful in occupying a wide range of ecological niches and biomes along the global ocean. Although there is a recognized importance of diatoms for the Southern Ocean ecosystems and biogeochemical cycles, the current knowledge on their ecology and distribution along the impacted Antarctic coastal regions remains generalized at best. HPLC–CHEMTAX approaches have been extensively used to this purpose, providing valuable information about the whole phytoplankton community, even for those small-size species which are normally difficult to identify by light microscopy. Despite that, the chemotaxonomic method has reserved minimal focus on great diversity of types associated with diatom genera or species. Here, we show a coupling between the key genera and the corresponding chemotaxonomic subgroup type-A or type-B of diatoms via HPLC–CHEMTAX and microscopic analysis, using chlorophyll–c 1 and chlorophyll–c 3 as biomarker pigments, respectively. The results demonstrated strong correlations for nine of the fifteen most abundant diatom genera observed along the Northern Antarctic Peninsula, from which five (four) were statistically associated with chlorophyll–c 1 (chlorophyll–c 3). Our study highlights the importance to observe diatoms in greater detail, beyond being only one functional group, for a better understanding on their responses under a climate change scenario. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Southern Ocean Antarctic Peninsula Anais da Academia Brasileira de Ciências 94 suppl 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Southern Ocean phytoplankton diatoms HPLC-CHEMTAX microscopy Science Q |
spellingShingle |
Southern Ocean phytoplankton diatoms HPLC-CHEMTAX microscopy Science Q RAUL RODRIGO COSTA CARLOS RAFAEL B. MENDES MÁRCIO S. DE SOUZA VIRGINIA MARIA TAVANO EDUARDO R. SECCHI Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula |
topic_facet |
Southern Ocean phytoplankton diatoms HPLC-CHEMTAX microscopy Science Q |
description |
Abstract Diatoms are successful in occupying a wide range of ecological niches and biomes along the global ocean. Although there is a recognized importance of diatoms for the Southern Ocean ecosystems and biogeochemical cycles, the current knowledge on their ecology and distribution along the impacted Antarctic coastal regions remains generalized at best. HPLC–CHEMTAX approaches have been extensively used to this purpose, providing valuable information about the whole phytoplankton community, even for those small-size species which are normally difficult to identify by light microscopy. Despite that, the chemotaxonomic method has reserved minimal focus on great diversity of types associated with diatom genera or species. Here, we show a coupling between the key genera and the corresponding chemotaxonomic subgroup type-A or type-B of diatoms via HPLC–CHEMTAX and microscopic analysis, using chlorophyll–c 1 and chlorophyll–c 3 as biomarker pigments, respectively. The results demonstrated strong correlations for nine of the fifteen most abundant diatom genera observed along the Northern Antarctic Peninsula, from which five (four) were statistically associated with chlorophyll–c 1 (chlorophyll–c 3). Our study highlights the importance to observe diatoms in greater detail, beyond being only one functional group, for a better understanding on their responses under a climate change scenario. |
format |
Article in Journal/Newspaper |
author |
RAUL RODRIGO COSTA CARLOS RAFAEL B. MENDES MÁRCIO S. DE SOUZA VIRGINIA MARIA TAVANO EDUARDO R. SECCHI |
author_facet |
RAUL RODRIGO COSTA CARLOS RAFAEL B. MENDES MÁRCIO S. DE SOUZA VIRGINIA MARIA TAVANO EDUARDO R. SECCHI |
author_sort |
RAUL RODRIGO COSTA |
title |
Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula |
title_short |
Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula |
title_full |
Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula |
title_fullStr |
Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula |
title_full_unstemmed |
Chemotaxonomic characterization of the key genera of diatoms in the Northern Antarctic Peninsula |
title_sort |
chemotaxonomic characterization of the key genera of diatoms in the northern antarctic peninsula |
publisher |
Academia Brasileira de Ciências |
publishDate |
2022 |
url |
https://doi.org/10.1590/0001-3765202220210584 https://doaj.org/article/7674017925114f4889e7336ccfffc583 |
geographic |
Antarctic Southern Ocean Antarctic Peninsula |
geographic_facet |
Antarctic Southern Ocean Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_source |
Anais da Academia Brasileira de Ciências, Vol 94, Iss suppl 1 (2022) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000200904&lng=en&tlng=en http://www.scielo.br/pdf/aabc/v94s1/0001-3765-aabc-94-s1-e20210584.pdf https://doaj.org/toc/1678-2690 1678-2690 doi:10.1590/0001-3765202220210584 https://doaj.org/article/7674017925114f4889e7336ccfffc583 |
op_doi |
https://doi.org/10.1590/0001-3765202220210584 |
container_title |
Anais da Academia Brasileira de Ciências |
container_volume |
94 |
container_issue |
suppl 1 |
_version_ |
1766199761234296832 |