dc.creator | Spaccesi, Fernando G. | |
dc.creator | Rodrigues Capítulo, Alberto | |
dc.date | 2012 | |
dc.date | 2014-06-24T15:56:04Z | |
dc.identifier | http://sedici.unlp.edu.ar/handle/10915/36932 | |
dc.identifier | http://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2012.e15/467 | |
dc.identifier | issn:1129-5767 | |
dc.description | The structure and composition of benthic communities on hard substrates covered by the nonindigenous bivalve <i>Limnoperna fortunei</i> Dunker, the golden mussel, were quantified in the middle zone of the Río de la Plata Estuary (Argentina) from April 2001 through March 2002. A total of 26 taxa were recorded. <i>L. fortunei</i> and Nematoda were the central and dominant groups, with a prodigious abundance of over 80%. The prevalence of <i>L. fortunei</i>, rather than the environmental variables, regulated the dynamics of the associated invertebrate fauna. The golden mussel alters both the structure and function of benthic native communities on hard substrates, allows a higher surface available for colonization and refuge, and provides food source to deposit-feeding organisms in the form of organic or residual material. The mussel also increases the abundance and diversity of taxa on hard substrata - such as Oligochaeta, Hirudinea, Tardigrada, Chironomidae, Copepoda, Tanaidacea, and Hydrachnidia. Similarities and nonparametric multidimensional-scaling analyses indicated that the benthic composition had a seasonal variation. <i>L. fortunei</i> has an environmental impact, an ability to invade new freshwater ambiences worldwide and ecological characteristic comparable to those of <i>Dreissena polymorpha</i> Pallas (the zebra mussel) of North America and Europe. | |
dc.description | Facultad de Ciencias Naturales y Museo | |
dc.format | application/pdf | |
dc.format | 144-153 | |
dc.language | es | |
dc.rights | http://creativecommons.org/licenses/by/3.0/ | |
dc.rights | Creative Commons Attribution 3.0 Unported (CC BY 3.0) | |
dc.subject | Ciencias Naturales | |
dc.subject | Biología | |
dc.subject | Argentina | |
dc.subject | benthos | |
dc.subject | alien species | |
dc.subject | biodiversity | |
dc.subject | community structure | |
dc.subject | estuarine ecosystem | |
dc.subject | neotropical region | |
dc.subject | taxonomy | |
dc.subject | structure and composition | |
dc.subject | temporal variation | |
dc.subject | Río de la Plata | |
dc.title | Benthic communities on hard substrates covered by <i>Limnoperna fortunei</i> Dunker (Bivalvia, Mytilidae) at an estuarine beach (Río de la Plata, Argentina) | |
dc.type | Articulo | |
dc.type | Articulo | |