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Abstract:

The distribution pattern, frequency and density (ind./1000 m) of different mesozooplankton species from the South Georgia Islands, South Orkney Islands and the Weddell-Scotia Confluence were analyzed using data obtained in 1994. The maximum densities of the species found were: Eukrohnia hamata (5330), Sagitta gazellae (1052), Clione limacina antarctica (450), Spongiobranchaea australis (375), Clio sulcata (100), Limacina helicina (4076 x 103), Limacina retroversa (71 x 104), Pelagobia longicirrata (29170), Rhynchonereella bongraini (117), Tomopteris carpenterii (26), Tomopteris planktonis (498), Tomopteris septentrionales (498) and Salpa thompsoni (189). Species density and frequency decreased from South Georgia to the South Orkney Islands, recording intermediate values at the Weddell-Scotia Confluence. Species density in the South Orkney area seemed to be limited by variations in temperature and salinity. The southern area around South Georgia showed the highest density of species, probably due to the influence of the Southern Front of the Antarctic Circumpolar Current. The presence of species characteristic of sub- Antarctic waters such as L. retroversa in the Confluence area could be related to the southward movements of eddies that originate in the Polar Front.

Registro:

Documento: Artículo
Título:Distribution patterns of chaetognata, polychaeta, pteropoda and salpidae off South Georgia and South Orkney Islands
Autor:Crelier, A.M.; Dadon, J.R.; Isbert-Perlender, H.G.; Nahabedian, D.E.; Daponte, M.C.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Departamento de Biodiversidad, Biología Experimental (Pabellón II Ciudad Universitaria, EHA1428 Buenos Aires, Argentina
Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Departamento de Ecología, Genética y Evolución (Pabellón II Ciudad Universitaria, EHA1428 Buenos Aires, Argentina
Servicio Naval de Investigación y Desarrollo (SENID) - Armada Argentina, Av. del Libertador 327, B1638 BEC Vicente López, Buenos Aires, Argentina
Palabras clave:Clio sulcata; Clione; Clione limacina; Eukrohnia hamata; Limacina helicina; Limacina retroversa; Pelagobia longicirrata; Polychaeta; Pteropoda; Sagitta gazellae; Salpa thompsoni; Salpidae; Spongiobranchaea australis; Tomopteris; Tomopteris planctonis
Año:2010
Volumen:58
Número:4
Página de inicio:287
Página de fin:298
Título revista:Brazilian Journal of Oceanography
Título revista abreviado:Braz. J. Oceanogr.
ISSN:16798759
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16798759_v58_n4_p287_Crelier

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Citas:

---------- APA ----------
Crelier, A.M., Dadon, J.R., Isbert-Perlender, H.G., Nahabedian, D.E. & Daponte, M.C. (2010) . Distribution patterns of chaetognata, polychaeta, pteropoda and salpidae off South Georgia and South Orkney Islands. Brazilian Journal of Oceanography, 58(4), 287-298.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16798759_v58_n4_p287_Crelier [ ]
---------- CHICAGO ----------
Crelier, A.M., Dadon, J.R., Isbert-Perlender, H.G., Nahabedian, D.E., Daponte, M.C. "Distribution patterns of chaetognata, polychaeta, pteropoda and salpidae off South Georgia and South Orkney Islands" . Brazilian Journal of Oceanography 58, no. 4 (2010) : 287-298.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16798759_v58_n4_p287_Crelier [ ]
---------- MLA ----------
Crelier, A.M., Dadon, J.R., Isbert-Perlender, H.G., Nahabedian, D.E., Daponte, M.C. "Distribution patterns of chaetognata, polychaeta, pteropoda and salpidae off South Georgia and South Orkney Islands" . Brazilian Journal of Oceanography, vol. 58, no. 4, 2010, pp. 287-298.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16798759_v58_n4_p287_Crelier [ ]
---------- VANCOUVER ----------
Crelier, A.M., Dadon, J.R., Isbert-Perlender, H.G., Nahabedian, D.E., Daponte, M.C. Distribution patterns of chaetognata, polychaeta, pteropoda and salpidae off South Georgia and South Orkney Islands. Braz. J. Oceanogr. 2010;58(4):287-298.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16798759_v58_n4_p287_Crelier [ ]