Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii

Fragilariopsis is a marine diatom genus that has a critical ecological role in Antarctic waters due to its high abundance and ubiquity in plankton and sea ice. Several species of Fragilariopsis are used extensively in paleoceanography due to their good preservation in marine sediments. Detailed morp...

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Detalles Bibliográficos
Autores principales: Cefarelli, Adrián Oscar, Ferrario, Martha Elba, Vernet, Maria, Campana, Gabriela Laura, Lundholm, Nina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Naturales
Biología
Diatom
Fragilariopsis
Fragilariopsis barbieri
Fragilariopsis peragallii
Nitzschia
Antarctica
Sea ice
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146248
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-146248
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Biología
Diatom
Fragilariopsis
Fragilariopsis barbieri
Fragilariopsis peragallii
Nitzschia
Antarctica
Sea ice
spellingShingle Ciencias Naturales
Biología
Diatom
Fragilariopsis
Fragilariopsis barbieri
Fragilariopsis peragallii
Nitzschia
Antarctica
Sea ice
Cefarelli, Adrián Oscar
Ferrario, Martha Elba
Vernet, Maria
Campana, Gabriela Laura
Lundholm, Nina
Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii
topic_facet Ciencias Naturales
Biología
Diatom
Fragilariopsis
Fragilariopsis barbieri
Fragilariopsis peragallii
Nitzschia
Antarctica
Sea ice
description Fragilariopsis is a marine diatom genus that has a critical ecological role in Antarctic waters due to its high abundance and ubiquity in plankton and sea ice. Several species of Fragilariopsis are used extensively in paleoceanography due to their good preservation in marine sediments. Detailed morphological studies on Fragilariopsis species from Antarctic water and ice samples were thus performed. Nevertheless, some species of this genus still remain poorly studied. Based on close morphological similarity between the valve structure of the Antarctic diatom Nitzschia barbieri and the genus Fragilariopsis, we propose transferring N. barbieri to Fragilariopsis as Fragilariopsis barbieri comb. nov. The description of the two rarely reported species, F. barbieri and F. peragallii, were emended. The girdle structure and the formation of doublets in F. barbieri and F. peragallii are described and illustrated for the first time. The analyses were carried out by light and electron microscopy and complete the morphological description of the fourteen known extant taxa of Fragilariopsis from Antarctica. Relative abundance of Fragilariopsis species from sea ice is also presented.
format Articulo
Articulo
author Cefarelli, Adrián Oscar
Ferrario, Martha Elba
Vernet, Maria
Campana, Gabriela Laura
Lundholm, Nina
author_facet Cefarelli, Adrián Oscar
Ferrario, Martha Elba
Vernet, Maria
Campana, Gabriela Laura
Lundholm, Nina
author_sort Cefarelli, Adrián Oscar
title Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii
title_short Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii
title_full Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii
title_fullStr Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii
title_full_unstemmed Transfer of the Antarctic diatom Nitzschia barbieri (Bacillariophyta) to the genus Fragilariopsis and emended descriptions of F. barbieri comb. nov. and F. peragallii
title_sort transfer of the antarctic diatom nitzschia barbieri (bacillariophyta) to the genus fragilariopsis and emended descriptions of f. barbieri comb. nov. and f. peragallii
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/146248
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