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Abstract:

The aim of this study is to characterize the different macrozoobenthos communities in Mar del Plata waters (south-western Atlantic) on the basis of their abundance and habitat, and to determine how sediment characteristics, like the grain-size composition, affect macrobenthic community structure. Multivariate techniques indicated that benthic communities and sediments in the surveyed area were included into the following five well-defined groups: (1) a medium sand assemblage dominated by the bivalve Crassinella marplatensis and Diplodonta patagonica, the echinoderm Encope emarginata, the tanaidacean Bacescapseudes sp. and the polychaete Armandia loboi; (2) a medium to very fine sand assemblage dominated by ostracods, the tanaidacean Bacescapseudes sp., amphipods and polychaetes of the family Nephtyidae; (3) a fine to very fine sand assemblage dominated by the tanaidacean Bacescapseudes sp.; (4) a silt and fine sand assemblage dominated by polychaetes particularly Scolelepis sp. and individuals of the family Nephtyidae; and (5) a fine sand assemblage dominated by amphipods and the tanaidacean Bacescapseudes sp. These results revealed the patchy distribution of macrobenthic assemblages as a result of sediment characteristics and serve as baseline information for this area strongly subjected to trawling perturbations. © 2010 Marine Biological Association of the United Kingdom.

Registro:

Documento: Artículo
Título:Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
Autor:Arrighetti, F.; Penchaszadeh, P.E.
Filiación:Laboratorio de Invertebrados, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA, Buenos Aires, Argentina
CONICET, Museo Argentino de Ciencias Naturales, Avenida Angel Gallardo 470, C1405DJR, Buenos Aires, Argentina
Palabras clave:grain size composition; macrobenthos; patchy distribution; south-western Atlantic; abundance; bivalve; community structure; echinoderm; grain size; macrobenthos; multivariate analysis; patchiness; polychaete; trawling; Argentina; Atlantic Ocean; Atlantic Ocean (Southwest); Buenos Aires [Argentina]; Mar del Plata; Amphipoda; Armandia loboi; Bacescapseudes; Bivalvia; Crassinella; Diplodonta; Echinodermata; Encope emarginata; Nephtyidae; Ostracoda; Polychaeta; Scolelepis; Tanaidacea
Año:2010
Volumen:90
Número:5
Página de inicio:933
Página de fin:939
DOI: http://dx.doi.org/10.1017/S0025315409991524
Título revista:Journal of the Marine Biological Association of the United Kingdom
Título revista abreviado:J. Mar. Biol. Assoc. U.K.
ISSN:00253154
CODEN:JMBAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v90_n5_p933_Arrighetti

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Citas:

---------- APA ----------
Arrighetti, F. & Penchaszadeh, P.E. (2010) . Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina. Journal of the Marine Biological Association of the United Kingdom, 90(5), 933-939.
http://dx.doi.org/10.1017/S0025315409991524
---------- CHICAGO ----------
Arrighetti, F., Penchaszadeh, P.E. "Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina" . Journal of the Marine Biological Association of the United Kingdom 90, no. 5 (2010) : 933-939.
http://dx.doi.org/10.1017/S0025315409991524
---------- MLA ----------
Arrighetti, F., Penchaszadeh, P.E. "Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina" . Journal of the Marine Biological Association of the United Kingdom, vol. 90, no. 5, 2010, pp. 933-939.
http://dx.doi.org/10.1017/S0025315409991524
---------- VANCOUVER ----------
Arrighetti, F., Penchaszadeh, P.E. Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina. J. Mar. Biol. Assoc. U.K. 2010;90(5):933-939.
http://dx.doi.org/10.1017/S0025315409991524