Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean)
Abstract: During a survey of the freshwater diatom fl ora of Ascencion Island, a small isolated volcanic island in the southern Atlantic Ocean, two diatom taxa that could not be identifi ed using the currently available literature were observed. Detailed light and scanning electron microscopy observ...
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Language: | English |
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2018
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ftunivantwerpen:c:irua:177116 2023-07-16T04:00:53+02:00 Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) Van de Vijver, Bart Wilfert, Sandra John, David M. Lange-Bertalot, Horst 2018 https://hdl.handle.net/10067/1771160151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1127/NOVA-SUPPL/2018/018 info:eu-repo/semantics/closedAccess 1438-9134 Nova Hedwigia. Beiheft Biology info:eu-repo/semantics/article 2018 ftunivantwerpen https://doi.org/10.1127/NOVA-SUPPL/2018/018 2023-06-26T22:32:44Z Abstract: During a survey of the freshwater diatom fl ora of Ascencion Island, a small isolated volcanic island in the southern Atlantic Ocean, two diatom taxa that could not be identifi ed using the currently available literature were observed. Detailed light and scanning electron microscopy observations revealed that both taxa should be described as new species: Navicula ascensionensis sp. nov. and Eunotia meridioatlantica sp. nov. Both taxa are illustrated and compared to similar taxa worldwide. Navicula ascensionensis sp. nov. belongs to the Alineae section of the genus Navicula and can be distinguished from similar taxa by a combination of its valve dimensions, stria orientation and clearly curved proximal raphe endings. Eunotia meridioatlantica sp. nov. is distinguishable by its valve shape and shape of the broadly rounded, only very weakly protracted apices. Article in Journal/Newspaper South Atlantic Ocean IRUA - Institutional Repository van de Universiteit Antwerpen Ora ENVELOPE(7.517,7.517,62.581,62.581) Nova Hedwigia, Beihefte 147 229 235 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Van de Vijver, Bart Wilfert, Sandra John, David M. Lange-Bertalot, Horst Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) |
topic_facet |
Biology |
description |
Abstract: During a survey of the freshwater diatom fl ora of Ascencion Island, a small isolated volcanic island in the southern Atlantic Ocean, two diatom taxa that could not be identifi ed using the currently available literature were observed. Detailed light and scanning electron microscopy observations revealed that both taxa should be described as new species: Navicula ascensionensis sp. nov. and Eunotia meridioatlantica sp. nov. Both taxa are illustrated and compared to similar taxa worldwide. Navicula ascensionensis sp. nov. belongs to the Alineae section of the genus Navicula and can be distinguished from similar taxa by a combination of its valve dimensions, stria orientation and clearly curved proximal raphe endings. Eunotia meridioatlantica sp. nov. is distinguishable by its valve shape and shape of the broadly rounded, only very weakly protracted apices. |
format |
Article in Journal/Newspaper |
author |
Van de Vijver, Bart Wilfert, Sandra John, David M. Lange-Bertalot, Horst |
author_facet |
Van de Vijver, Bart Wilfert, Sandra John, David M. Lange-Bertalot, Horst |
author_sort |
Van de Vijver, Bart |
title |
Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) |
title_short |
Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) |
title_full |
Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) |
title_fullStr |
Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) |
title_full_unstemmed |
Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean) |
title_sort |
two new diatom species (bacillariophyta) from ascension island (south atlantic ocean) |
publishDate |
2018 |
url |
https://hdl.handle.net/10067/1771160151162165141 |
long_lat |
ENVELOPE(7.517,7.517,62.581,62.581) |
geographic |
Ora |
geographic_facet |
Ora |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
1438-9134 Nova Hedwigia. Beiheft |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1127/NOVA-SUPPL/2018/018 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1127/NOVA-SUPPL/2018/018 |
container_title |
Nova Hedwigia, Beihefte |
container_volume |
147 |
container_start_page |
229 |
op_container_end_page |
235 |
_version_ |
1771550179915202560 |