Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae)
<abstract language="eng">A taxonomic revision of some diatom species of the genera Biddulphia Gray and Triceratium Ehrenberg is made. The species are: B. azorica Pavillard, B. schroederiana Schussnig, B. membranacea Cleve. T. formosum Brightwell f.formosum, T. formosum f. quadrangula...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
1980-12-01
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| Series: | Brazilian Journal of Oceanography |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591980000200016 |
| _version_ | 1818689565120004096 |
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| author | Maria Consuelo Carbonell Ortiz |
| author_facet | Maria Consuelo Carbonell Ortiz |
| author_sort | Maria Consuelo Carbonell Ortiz |
| collection | DOAJ |
| description | <abstract language="eng">A taxonomic revision of some diatom species of the genera Biddulphia Gray and Triceratium Ehrenberg is made. The species are: B. azorica Pavillard, B. schroederiana Schussnig, B. membranacea Cleve. T. formosum Brightwell f.formosum, T. formosum f. quadrangularis (Hustedt), T. formosum f. quinquelobulata (Hustedt), T. shadboltianum Greville, T. shadbottianum f. elongata (Grunow) Hustedt and T. pelagicum (Schroder) Sournia. These species have poor siliciflcation of the frustules, reduced valvar apendixes and spines or none; these features could be regarded as adaptations to pelagic life. Descriptions and microphotographies of the species were made. These Biddulphia spp were found to be very close and some morphometric differences in the relation apical axe/pervalvar axe were taken in order to identify them quickly. All forms were found to be more frequent in no rain season and in high salinity waters (36 ‰). For T. formosum f. quadrangularis (Hustedt) and T. formosum f. quinquelobulata (Hustedt) some explanations were made about its real infrasnecific position, so that T. quadrangulare Greville and T. quinquelobutarum Greville should be regarded as different species of that forms of T.formosum Brightwell. B. azorica Pavillard and B. schroederiana Schussnig are first reported for the Caribbean Sea area. |
| first_indexed | 2024-12-17T12:12:07Z |
| format | Article |
| id | doaj.art-f3d482f3af5d4871bfed631a5778c3fd |
| institution | Directory Open Access Journal |
| issn | 1679-8759 1982-436X |
| language | English |
| last_indexed | 2024-12-17T12:12:07Z |
| publishDate | 1980-12-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Brazilian Journal of Oceanography |
| spelling | doaj.art-f3d482f3af5d4871bfed631a5778c3fd2022-12-21T21:49:22ZengUniversidade de São PauloBrazilian Journal of Oceanography1679-87591982-436X1980-12-01292757810.1590/S1679-87591980000200016Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae)Maria Consuelo Carbonell Ortiz<abstract language="eng">A taxonomic revision of some diatom species of the genera Biddulphia Gray and Triceratium Ehrenberg is made. The species are: B. azorica Pavillard, B. schroederiana Schussnig, B. membranacea Cleve. T. formosum Brightwell f.formosum, T. formosum f. quadrangularis (Hustedt), T. formosum f. quinquelobulata (Hustedt), T. shadboltianum Greville, T. shadbottianum f. elongata (Grunow) Hustedt and T. pelagicum (Schroder) Sournia. These species have poor siliciflcation of the frustules, reduced valvar apendixes and spines or none; these features could be regarded as adaptations to pelagic life. Descriptions and microphotographies of the species were made. These Biddulphia spp were found to be very close and some morphometric differences in the relation apical axe/pervalvar axe were taken in order to identify them quickly. All forms were found to be more frequent in no rain season and in high salinity waters (36 ‰). For T. formosum f. quadrangularis (Hustedt) and T. formosum f. quinquelobulata (Hustedt) some explanations were made about its real infrasnecific position, so that T. quadrangulare Greville and T. quinquelobutarum Greville should be regarded as different species of that forms of T.formosum Brightwell. B. azorica Pavillard and B. schroederiana Schussnig are first reported for the Caribbean Sea area.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591980000200016 |
| spellingShingle | Maria Consuelo Carbonell Ortiz Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae) Brazilian Journal of Oceanography |
| title | Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae) |
| title_full | Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae) |
| title_fullStr | Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae) |
| title_full_unstemmed | Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae) |
| title_short | Discusión taxonómica de algunas especies interesantes de los géneros Biddulphia Gray y Triceratium Ehrenberg (Bacillariophyceae) |
| title_sort | discusion taxonomica de algunas especies interesantes de los generos biddulphia gray y triceratium ehrenberg bacillariophyceae |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591980000200016 |
| work_keys_str_mv | AT mariaconsuelocarbonellortiz discusiontaxonomicadealgunasespeciesinteresantesdelosgenerosbiddulphiagrayytriceratiumehrenbergbacillariophyceae |