Artículo

Almandoz, G.O.; Ferreyra, G.A.; Schloss, I.R.; Dogliotti, A.I.; Rupolo, V.; Paparazzo, F.E.; Esteves, J.L.; Ferrario, M.E. "Distribution and ecology of Pseudo-nitzschia species (Bacillariophyceae) in surface waters of the Weddell Sea (Antarctica)" (2008) Polar Biology. 31(4):429-442
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Abstract:

The distribution of six Pseudo-nitzschia species and their relationship with environmental conditions were studied for the first time in a vast zone of the Weddell Sea (∼61-77°S, Antarctica). Both qualitative and quantitative phytoplankton samples, collected during summer 2004, were examined using light and scanning electron microscopy. Phytoplankton abundance and composition showed great variability along our study area. Diatoms were the most conspicuous phytoplankton group in the northern area while small flagellates were generally dominant in the southern stations. The genus Pseudo-nitzschia was broadly distributed and significantly contributed to total diatom densities. A marked contrast in Pseudo-nitzschia species distribution was observed in three main zones divided by the Weddell Front (WF) and the Antarctic Slope Front (ASF). P. subcurvata and P. turgiduloides were the most abundant species in the neritic Weddell Sea zone, south of the ASF, mainly near the ice-edge in shallower waters and in conditions of long photoperiod. In contrast, P. prolongatoides and P. lineola dominated north of the ASF; the first was associated with deeper and nutrient-rich waters whereas the latter showed a weak relation with environmental variables examined. Finally, P. turgidula and P. heimii were mostly observed in the Weddell-Scotia Confluence Zone in the warmest and far from ice covered waters, north of the WF. A brief morphological Pseudo-nitzschia species description is given in the Appendix, including morphometrics and pictures. © 2007 Springer-Verlag.

Registro:

Documento: Artículo
Título:Distribution and ecology of Pseudo-nitzschia species (Bacillariophyceae) in surface waters of the Weddell Sea (Antarctica)
Autor:Almandoz, G.O.; Ferreyra, G.A.; Schloss, I.R.; Dogliotti, A.I.; Rupolo, V.; Paparazzo, F.E.; Esteves, J.L.; Ferrario, M.E.
Filiación:Facultad de Ciencias Naturales Y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, (1900) La Plata, Argentina
CONICET, Consejo Nacional de Investigaciones Científicas Y Técnicas, Av. Rivadavia 1917, Buenos Aires 1033, Argentina
Instituto Antártico Argentino, Cerrito 1248, Ciudad de Buenos Aires 1010, Argentina
Instituto de Astronomía Y Física del Espacio (IAFE-CONICET), Pabellón IAFE, Ciudad Universitaria, C.C. 67-sucursal 28, Buenos Aires 1428, Argentina
Climate and Environmne Department, ENEA, Via Anguillarese 301, Rome 00123, Italy
CENPAT-CONICET, Bv. Brown 3000, Puerto Madryn 9120, Argentina
Palabras clave:Antarctica; Diatoms; Phytoplankton distribution; Pseudo-nitzschia; Weddell Sea; abundance; community composition; confluence; diatom; ecology; environmental conditions; flagellate; ice cover; morphology; morphometry; phytoplankton; spatial distribution; species-area relationship; surface water; Antarctica; Atlantic Ocean; Scotia Sea; Southern Ocean; Weddell Sea; Bacillariophyceae; Bacillariophyta; Mastigophora (flagellates); Pseudo-nitzschia
Año:2008
Volumen:31
Número:4
Página de inicio:429
Página de fin:442
DOI: http://dx.doi.org/10.1007/s00300-007-0369-9
Título revista:Polar Biology
Título revista abreviado:Polar Biol.
ISSN:07224060
CODEN:POBID
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n4_p429_Almandoz

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Citas:

---------- APA ----------
Almandoz, G.O., Ferreyra, G.A., Schloss, I.R., Dogliotti, A.I., Rupolo, V., Paparazzo, F.E., Esteves, J.L.,..., Ferrario, M.E. (2008) . Distribution and ecology of Pseudo-nitzschia species (Bacillariophyceae) in surface waters of the Weddell Sea (Antarctica). Polar Biology, 31(4), 429-442.
http://dx.doi.org/10.1007/s00300-007-0369-9
---------- CHICAGO ----------
Almandoz, G.O., Ferreyra, G.A., Schloss, I.R., Dogliotti, A.I., Rupolo, V., Paparazzo, F.E., et al. "Distribution and ecology of Pseudo-nitzschia species (Bacillariophyceae) in surface waters of the Weddell Sea (Antarctica)" . Polar Biology 31, no. 4 (2008) : 429-442.
http://dx.doi.org/10.1007/s00300-007-0369-9
---------- MLA ----------
Almandoz, G.O., Ferreyra, G.A., Schloss, I.R., Dogliotti, A.I., Rupolo, V., Paparazzo, F.E., et al. "Distribution and ecology of Pseudo-nitzschia species (Bacillariophyceae) in surface waters of the Weddell Sea (Antarctica)" . Polar Biology, vol. 31, no. 4, 2008, pp. 429-442.
http://dx.doi.org/10.1007/s00300-007-0369-9
---------- VANCOUVER ----------
Almandoz, G.O., Ferreyra, G.A., Schloss, I.R., Dogliotti, A.I., Rupolo, V., Paparazzo, F.E., et al. Distribution and ecology of Pseudo-nitzschia species (Bacillariophyceae) in surface waters of the Weddell Sea (Antarctica). Polar Biol. 2008;31(4):429-442.
http://dx.doi.org/10.1007/s00300-007-0369-9