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Abstract:

A taxonomic study was made of the periphytic algal flora of some freshwater environments at Hope Bay, Antarctic Peninsula (63°27′S; 56°59′W), during summer 1992-1993. Seven lakes and two pools that are characterized by different trophic levels were studied. The largest, Boeckella Lake, has an important outflow (Prasiola Stream) that was also analyzed. Ninety-seven algal taxa, including specific and infraspecific entities, are recorded. Thirty-one new records for the Antarctic continent are described and illustrated. The flora comprises 44.4% Cyanophyceae, 21.6% Bacillariophyceae, 18.5% Chlorophyceae, 9.3% Tribophyceae, 4.2% Chrysophyceae and 2% Zygophyceae. The epilithic flora of Hope Bay shows a high species richness. Phormidiumfragile and Lyngbya lagerheimii were the most abundant species among the Cyanophyceae. In the algal mats we also found Chrysophyceae (mainly Hydrurus foetidus and Chrysococcus rufescens) and the macroscopic chlorophycean Prasiola crispa. Tribonema australis sp. nov. (Tribonematales, Tribophyceae) is put forward as a new species. Hormidium fluitans (Gay) Heering is renamed Klebshormidium fluitans. © 1995 Springer-Verlag.

Registro:

Documento: Artículo
Título:Periphyton flora of some lotic and lentic environments of Hope Bay (Antarctic Peninsula)
Autor:Vinocur, A.; Pizarro, H.
Filiación:Depto. Cs. Biológicas, Facultad de Cs. Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II., Buenos Aires, 1428, Argentina
Palabras clave:lentic ecosystem; lotic ecosystem; periphyton; Antarctica, Antarctic Peninsula, Hope Bay, Boeckella Lake; Antarctica, Antarctic Peninsula, Hope Bay, Prasiola Stream; Bacillariophyceae; Chlorophyceae; Chrysococcus rufescens; Chrysophyceae; Cyanophyceae; Hydrurus foetidus; Lyngbya lagerheimii; Phormidium fragile; Prasiola crispa; Tribophyceae; Zygophyceae
Año:1995
Volumen:15
Número:6
Página de inicio:401
Página de fin:414
DOI: http://dx.doi.org/10.1007/BF00239716
Título revista:Polar Biology
Título revista abreviado:Polar Biol
ISSN:07224060
CODEN:POBID
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v15_n6_p401_Vinocur

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Citas:

---------- APA ----------
Vinocur, A. & Pizarro, H. (1995) . Periphyton flora of some lotic and lentic environments of Hope Bay (Antarctic Peninsula). Polar Biology, 15(6), 401-414.
http://dx.doi.org/10.1007/BF00239716
---------- CHICAGO ----------
Vinocur, A., Pizarro, H. "Periphyton flora of some lotic and lentic environments of Hope Bay (Antarctic Peninsula)" . Polar Biology 15, no. 6 (1995) : 401-414.
http://dx.doi.org/10.1007/BF00239716
---------- MLA ----------
Vinocur, A., Pizarro, H. "Periphyton flora of some lotic and lentic environments of Hope Bay (Antarctic Peninsula)" . Polar Biology, vol. 15, no. 6, 1995, pp. 401-414.
http://dx.doi.org/10.1007/BF00239716
---------- VANCOUVER ----------
Vinocur, A., Pizarro, H. Periphyton flora of some lotic and lentic environments of Hope Bay (Antarctic Peninsula). Polar Biol. 1995;15(6):401-414.
http://dx.doi.org/10.1007/BF00239716