Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt

[EN] During a recent floristic–taxonomic study on the algal flora, including diatoms, from the estuary of the Damietta Branch of the Nile in Egypt, an interesting epilithic diatom species belonging to the genus Seminavis (Naviculaceae) was collected and investigated using both light and scanning ele...

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Detalles Bibliográficos
Autores: Saber, Abdullah A., El-Belely, Ehab F., El-Refaey, Ahmed A., El-Gamal, Ahmed D., Blanco Lanza, Saúl, Cantonati, Marco
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/20037
Acceso en línea:https://fottea.czechphycology.cz/artkey/fot-202001-0005_seminavis_aegyptiaca_sp_nov_a_new_amphoroid_diatom_species_from_estuary_epilithon_of_the_river-nile_damietta.php
https://hdl.handle.net/10612/20037
Access Level:acceso abierto
Palabra clave:Botánica
Ecología. Medio ambiente
Benthic diatoms
Egypt
Morphotaxonomy
New species
Seminavis
The Nile River
2417.07 Algología (Ficología)
2417.20 Taxonomía Vegetal
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spelling Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, EgyptSaber, Abdullah A.El-Belely, Ehab F.El-Refaey, Ahmed A.El-Gamal, Ahmed D.Blanco Lanza, SaúlCantonati, MarcoBotánicaEcología. Medio ambienteBenthic diatomsEgyptMorphotaxonomyNew speciesSeminavisThe Nile River2417.07 Algología (Ficología)2417.20 Taxonomía Vegetal[EN] During a recent floristic–taxonomic study on the algal flora, including diatoms, from the estuary of the Damietta Branch of the Nile in Egypt, an interesting epilithic diatom species belonging to the genus Seminavis (Naviculaceae) was collected and investigated using both light and scanning electron microscopy. This new diatom species shares morphologically some taxonomic diagnostic features with other related taxa such as S. insignis, S. robusta, and S. ventricosa. However, it still differs by having ventral central striae that are shorter and more or less straight in the middle of the smaller frustules to be clearly radiate in the larger ones and then become geniculate and only radiate near the poles, the central raphe endings are externally more distantly spaced than in the similar species, the elongate central nodule is internally less prominent, and the areola density is much denser. Therefore, we here describe it as Seminavis aegyptiaca sp. nov. Hydrochemical analyses revealed that S. aegyptiaca commonly inhabits typical marine, with a weak tendency towards brackish water, habitats. It was found to be tolerant to meso–eutrophic, nutrient–enriched conditions, based on the data available on seasonal concentrations of N and P compounds. These findings not only contribute to the inventory of Egyptian diatoms, but also increase our understanding of the autecology and distribution of this relatively poorly–known diatom genusSIThis work was a part of the PhyBiO project funded by the Italian Ministry of Foreign Affairs and International Cooperation (MAECI) to the MUSE Post–Doc Abdullah A. Saber for the academic year 2018/2019Czech Phycological SocietyPalacký University OlomoucEcologiaFacultad de Ciencias Biologicas y Ambientales2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://fottea.czechphycology.cz/artkey/fot-202001-0005_seminavis_aegyptiaca_sp_nov_a_new_amphoroid_diatom_species_from_estuary_epilithon_of_the_river-nile_damietta.phphttps://hdl.handle.net/10612/20037reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad Rey Juan CarlosIngléshttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/200372026-06-24T12:43:27Z
dc.title.none.fl_str_mv Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
title Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
spellingShingle Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
Saber, Abdullah A.
Botánica
Ecología. Medio ambiente
Benthic diatoms
Egypt
Morphotaxonomy
New species
Seminavis
The Nile River
2417.07 Algología (Ficología)
2417.20 Taxonomía Vegetal
title_short Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
title_full Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
title_fullStr Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
title_full_unstemmed Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
title_sort Seminavis aegyptiaca sp. nov., a new amphoroid diatom species from estuary epilithon of the River-Nile Damietta Branch, Egypt
dc.creator.none.fl_str_mv Saber, Abdullah A.
El-Belely, Ehab F.
El-Refaey, Ahmed A.
El-Gamal, Ahmed D.
Blanco Lanza, Saúl
Cantonati, Marco
author Saber, Abdullah A.
author_facet Saber, Abdullah A.
El-Belely, Ehab F.
El-Refaey, Ahmed A.
El-Gamal, Ahmed D.
Blanco Lanza, Saúl
Cantonati, Marco
author_role author
author2 El-Belely, Ehab F.
El-Refaey, Ahmed A.
El-Gamal, Ahmed D.
Blanco Lanza, Saúl
Cantonati, Marco
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ecologia
Facultad de Ciencias Biologicas y Ambientales
dc.subject.none.fl_str_mv Botánica
Ecología. Medio ambiente
Benthic diatoms
Egypt
Morphotaxonomy
New species
Seminavis
The Nile River
2417.07 Algología (Ficología)
2417.20 Taxonomía Vegetal
topic Botánica
Ecología. Medio ambiente
Benthic diatoms
Egypt
Morphotaxonomy
New species
Seminavis
The Nile River
2417.07 Algología (Ficología)
2417.20 Taxonomía Vegetal
description [EN] During a recent floristic–taxonomic study on the algal flora, including diatoms, from the estuary of the Damietta Branch of the Nile in Egypt, an interesting epilithic diatom species belonging to the genus Seminavis (Naviculaceae) was collected and investigated using both light and scanning electron microscopy. This new diatom species shares morphologically some taxonomic diagnostic features with other related taxa such as S. insignis, S. robusta, and S. ventricosa. However, it still differs by having ventral central striae that are shorter and more or less straight in the middle of the smaller frustules to be clearly radiate in the larger ones and then become geniculate and only radiate near the poles, the central raphe endings are externally more distantly spaced than in the similar species, the elongate central nodule is internally less prominent, and the areola density is much denser. Therefore, we here describe it as Seminavis aegyptiaca sp. nov. Hydrochemical analyses revealed that S. aegyptiaca commonly inhabits typical marine, with a weak tendency towards brackish water, habitats. It was found to be tolerant to meso–eutrophic, nutrient–enriched conditions, based on the data available on seasonal concentrations of N and P compounds. These findings not only contribute to the inventory of Egyptian diatoms, but also increase our understanding of the autecology and distribution of this relatively poorly–known diatom genus
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://fottea.czechphycology.cz/artkey/fot-202001-0005_seminavis_aegyptiaca_sp_nov_a_new_amphoroid_diatom_species_from_estuary_epilithon_of_the_river-nile_damietta.php
https://hdl.handle.net/10612/20037
url https://fottea.czechphycology.cz/artkey/fot-202001-0005_seminavis_aegyptiaca_sp_nov_a_new_amphoroid_diatom_species_from_estuary_epilithon_of_the_river-nile_damietta.php
https://hdl.handle.net/10612/20037
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Czech Phycological Society
Palacký University Olomouc
publisher.none.fl_str_mv Czech Phycological Society
Palacký University Olomouc
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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