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Abstract:

Algal communities colouring snow and ice were studied at fourteen sites on Cierva Point (Danco Coast, Antarctic Peninsula). Chlorophyta were the dominant group in cryobiontic communities, both in species richness and abundance. Cyanobacteria and diatoms, in turn, showed a higher species number at low altitude, well drained temporary snow fields, probably denoting a cryoxenic character. Descriptions of the six species newly recorded for Antarctica are given, and the taxonomic position of some Scotiella, Trochiscia and Koliella species is discussed. Further research is needed to assess the importance of various stress factors in the progressive drop in species richness and biosynthesis of secondary carotenoids associated with a change in snow colour from green to orange-red to pink-red.

Registro:

Documento: Artículo
Título:A preliminary survey of cryobiontic algal communities from Cierva Point (Antarctic Peninsula)
Autor:Mataloni, G.; Tesolín, G.
Filiación:Depto. Cs. Biológicas, Universidad de Buenos Aires, Pab. II - C. Universitaria, (1428) Buenos Aires, Argentina
Palabras clave:Algae; Antarctica; Cryobiontic communities; Ecology; Snow; algal community; cyanobacteria; diatom; species richness; Antarctica, Danco Coast, Cierva Point; Chlorophyceae; Koliella; Scotiella; Trochiscia
Año:1997
Volumen:9
Número:3
Página de inicio:250
Página de fin:257
Título revista:Antarctic Science
Título revista abreviado:ANTARCT. SCI.
ISSN:09541020
CODEN:ANTSE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v9_n3_p250_Mataloni

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Citas:

---------- APA ----------
Mataloni, G. & Tesolín, G. (1997) . A preliminary survey of cryobiontic algal communities from Cierva Point (Antarctic Peninsula). Antarctic Science, 9(3), 250-257.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v9_n3_p250_Mataloni [ ]
---------- CHICAGO ----------
Mataloni, G., Tesolín, G. "A preliminary survey of cryobiontic algal communities from Cierva Point (Antarctic Peninsula)" . Antarctic Science 9, no. 3 (1997) : 250-257.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v9_n3_p250_Mataloni [ ]
---------- MLA ----------
Mataloni, G., Tesolín, G. "A preliminary survey of cryobiontic algal communities from Cierva Point (Antarctic Peninsula)" . Antarctic Science, vol. 9, no. 3, 1997, pp. 250-257.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v9_n3_p250_Mataloni [ ]
---------- VANCOUVER ----------
Mataloni, G., Tesolín, G. A preliminary survey of cryobiontic algal communities from Cierva Point (Antarctic Peninsula). ANTARCT. SCI. 1997;9(3):250-257.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v9_n3_p250_Mataloni [ ]