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dc.creatorRizzo, Alexandra E.
dc.creatorAmaral, Cecília Z.
dc.date2015-02-06
dc.date.accessioned2016-05-03T15:33:12Z
dc.date.available2016-05-03T15:33:12Z
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/18030
dc.identifier.urihttp://hdl.handle.net/10669/27419
dc.descriptionBenthic annelid communities were studied during a one-year period (August/95 to July/96) in two sectors of the beaches Engenho d’Água and São Francisco, São Sebastião Channel (São Paulo, Brazil), where the substrate is composed by a mixture of sand and rock fragments. Abiotic parameters such as salinity of interstitial water and sediment properties were used to characterize the environment. The polychaetes were well represented in the two sectors and their distribution was related with sediment type. The density of individuals and the number of taxa was higher at São Francisco, while the diversity and the evenness were higher at Engenho d’Água. This difference can be a consequence of organic enrichment caused by domestic input, and of the lower and more variable salinity at São Francisco. Due to these factors, the high density of opportunistic species, like Capitella capitata ssp., Scolelepis squamata, Laeonereis acuta and several oligochaetes, represented 75.5% of total abundance at this sector.en-US
dc.descriptionSe estudiaron las comunidades bénticas de anélidos durante un periodo de un año (de agosto/95 a julio/96) en dos sectores de las playas Engenho d’Água y São Francisco, Canal de São Sebastião, donde el sustrato está compuesto por una mezcla de arena y fragmentos de roca. Se usaron parámetros abióticos como salinidad del agua intersticial y propiedades del sedimento para caracterizar el ambiente. Los poliquetos estuvieron bien representados en los dos sectores y su distribución fue relacionada con el tipo de sedimento. La densidad de los individuos y el número de táxones fueron mayores en São Francisco, mientras que la diversidad y la equidad fueron mayores en Engenho d’Água. Esta diferencia puede ser una consecuencia de un enriquecimiento orgánico causado por una entrada doméstica y de la salinidad más baja y variable en São Francisco. Debido a estos factores, la alta densidad de especies oportunistas como Capitella capitata ssp., Scolelepis squamata, Laeonereis acuta y varios oligoquetos representó 75.5 % de la abundancia local en ese sector.es-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsCopyright (c) 2015 International Journal of Tropical Biology and Conservationen-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 49 (3-4) December 2001; 849-857en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 49 (3-4) December 2001; 849-857es-ES
dc.sourceRevista Biología Tropical; Vol. 49 (3-4) December 2001; 849-857pt-PT
dc.source2215-2075
dc.source0034-7744
dc.subjectsand with rock fragments beachen-US
dc.subjectintertidal zoneen-US
dc.subjectannelidsen-US
dc.subjectpolychaetesen-US
dc.subjectsão sebastião channelen-US
dc.subjectBrazilen-US
dc.titleEnvironmental variables and intertidal beach annelids of São Sebastião Channel (State of São Paulo, Brazil)en-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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