Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino
Background and aims: Planktonic dinoflagellates have a great ecological significance in marine environments. While some dinoflagellate species commonly reach bloom concentrations and are thus conspicuous components of marine phytoplankton, others occur in very low abundances which make them difficul...
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ftconicet:oai:ri.conicet.gov.ar:11336/150336 2023-10-09T21:55:56+02:00 Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino Field observations on rare or overlooked dinoflagellates from the Argentine Sea Fabro Cerreia Fus, Elena Ines Almandoz, Gaston Osvaldo application/pdf http://hdl.handle.net/11336/150336 spa spa Sociedad Argentina de Botánica info:eu-repo/semantics/altIdentifier/doi/10.31055/1851.2372.V56.N2.31421 info:eu-repo/semantics/altIdentifier/url/https://revistas.unc.edu.ar/index.php/BSAB/article/view/31421 http://hdl.handle.net/11336/150336 Fabro Cerreia Fus, Elena Ines; Almandoz, Gaston Osvaldo; Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino; Sociedad Argentina de Botánica; Boletín de la Sociedad Argentina de Botánica; 56; 2; 24-6-2021; 123-140 0373-580X 1851-2372 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ BIOGEOGRAPHY DINOFLAGELLATES DIVERSITY KARLODINIUM ELEGANS PROROCENTRUM NUX SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.31055/1851.2372.V56.N2.31421 2023-09-24T19:54:02Z Background and aims: Planktonic dinoflagellates have a great ecological significance in marine environments. While some dinoflagellate species commonly reach bloom concentrations and are thus conspicuous components of marine phytoplankton, others occur in very low abundances which make them difficult to detect in field studies. Here we analyzed dinoflagellate composition and abundance in five oceanographic expeditions carried out in continental shelf and slope waters of the Argentine Sea. M&M: Plankton abundance was estimated by the Utermöhl method, using inverted microscopy, whereas further optical and scanning electron microscopy was applied for the identification of dinoflagellate species. Results: We focused on the occurrence of seven dinoflagellates that have been previously poorly documented or overlooked in marine environments worldwide: Dinophysis microstrigiliformis; Gyrodinium sp.; Karlodinium elegans; Oxytoxum laticeps; Peridiniella danica; Peridiniella globosa and Prorocentrum nux. The latest and K. elegans are observed for the first time in field conditions after their original descriptions based on cell cultures. While most species were detected in low or moderate abundances, P. nux, which is the smallest Prorocentrum species, reached 82,000 cells L-1 in slope waters. Very small Gyrodinium cells (11.5 µm long; 8.7 µm wide) with a distribution restricted to slope waters during spring, were not possible to be accurately assigned to a species. Conclusions: This study contributes to the understanding of dinoflagellate diversity in the Argentine Sea and the worldwide distribution of little known species. Introducción y objetivos: Los dinoflagelados planctónicos son de gran relevancia en los ecosistemas marinos. Mientras que algunas especies suelen forman floraciones y ser componentes conspicuos del fitoplancton, otras se encuentran en abundancias muy bajas, lo cual hace difícil su detección. Aquí analizamos la composición y abundancia de dinoflagelados en cinco expediciones oceanográficas ... Article in Journal/Newspaper South Atlantic Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentino Argentine Boletín de la Sociedad Argentina de Botánica 56 2 |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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language |
Spanish |
topic |
BIOGEOGRAPHY DINOFLAGELLATES DIVERSITY KARLODINIUM ELEGANS PROROCENTRUM NUX SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
BIOGEOGRAPHY DINOFLAGELLATES DIVERSITY KARLODINIUM ELEGANS PROROCENTRUM NUX SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Fabro Cerreia Fus, Elena Ines Almandoz, Gaston Osvaldo Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino |
topic_facet |
BIOGEOGRAPHY DINOFLAGELLATES DIVERSITY KARLODINIUM ELEGANS PROROCENTRUM NUX SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Background and aims: Planktonic dinoflagellates have a great ecological significance in marine environments. While some dinoflagellate species commonly reach bloom concentrations and are thus conspicuous components of marine phytoplankton, others occur in very low abundances which make them difficult to detect in field studies. Here we analyzed dinoflagellate composition and abundance in five oceanographic expeditions carried out in continental shelf and slope waters of the Argentine Sea. M&M: Plankton abundance was estimated by the Utermöhl method, using inverted microscopy, whereas further optical and scanning electron microscopy was applied for the identification of dinoflagellate species. Results: We focused on the occurrence of seven dinoflagellates that have been previously poorly documented or overlooked in marine environments worldwide: Dinophysis microstrigiliformis; Gyrodinium sp.; Karlodinium elegans; Oxytoxum laticeps; Peridiniella danica; Peridiniella globosa and Prorocentrum nux. The latest and K. elegans are observed for the first time in field conditions after their original descriptions based on cell cultures. While most species were detected in low or moderate abundances, P. nux, which is the smallest Prorocentrum species, reached 82,000 cells L-1 in slope waters. Very small Gyrodinium cells (11.5 µm long; 8.7 µm wide) with a distribution restricted to slope waters during spring, were not possible to be accurately assigned to a species. Conclusions: This study contributes to the understanding of dinoflagellate diversity in the Argentine Sea and the worldwide distribution of little known species. Introducción y objetivos: Los dinoflagelados planctónicos son de gran relevancia en los ecosistemas marinos. Mientras que algunas especies suelen forman floraciones y ser componentes conspicuos del fitoplancton, otras se encuentran en abundancias muy bajas, lo cual hace difícil su detección. Aquí analizamos la composición y abundancia de dinoflagelados en cinco expediciones oceanográficas ... |
format |
Article in Journal/Newspaper |
author |
Fabro Cerreia Fus, Elena Ines Almandoz, Gaston Osvaldo |
author_facet |
Fabro Cerreia Fus, Elena Ines Almandoz, Gaston Osvaldo |
author_sort |
Fabro Cerreia Fus, Elena Ines |
title |
Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino |
title_short |
Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino |
title_full |
Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino |
title_fullStr |
Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino |
title_full_unstemmed |
Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino |
title_sort |
observaciones de campo sobre dinoflagelados raros o desconocidos en el mar argentino |
publisher |
Sociedad Argentina de Botánica |
url |
http://hdl.handle.net/11336/150336 |
geographic |
Argentino Argentine |
geographic_facet |
Argentino Argentine |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.31055/1851.2372.V56.N2.31421 info:eu-repo/semantics/altIdentifier/url/https://revistas.unc.edu.ar/index.php/BSAB/article/view/31421 http://hdl.handle.net/11336/150336 Fabro Cerreia Fus, Elena Ines; Almandoz, Gaston Osvaldo; Observaciones de campo sobre dinoflagelados raros o desconocidos en el Mar Argentino; Sociedad Argentina de Botánica; Boletín de la Sociedad Argentina de Botánica; 56; 2; 24-6-2021; 123-140 0373-580X 1851-2372 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
op_doi |
https://doi.org/10.31055/1851.2372.V56.N2.31421 |
container_title |
Boletín de la Sociedad Argentina de Botánica |
container_volume |
56 |
container_issue |
2 |
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1779320202748493824 |