Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina

In 1981, <i>Corbicula fluminea</i> (Müller, 1774) and <i>C. largillierti</i> (Philippi, 1844) were recorded at the Río de la Plata River. During the 1980’s, <i>C. largillierti</i> was found on a continuous fringe in the shore of that river, while <i>C. flumi...

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Autores principales: Reshaid, Yamila, Cao, Luciana, Brea, Francisco, Ortíz Blanche, María, Torres, Santiago, Darrigran, Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
Zoología
Bivalves
Freshwater
Invasion
Invertebrates
Mussel
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87718
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87718
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Zoología
Bivalves
Freshwater
Invasion
Invertebrates
Mussel
spellingShingle Ciencias Naturales
Zoología
Bivalves
Freshwater
Invasion
Invertebrates
Mussel
Reshaid, Yamila
Cao, Luciana
Brea, Francisco
Ortíz Blanche, María
Torres, Santiago
Darrigran, Gustavo
Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
topic_facet Ciencias Naturales
Zoología
Bivalves
Freshwater
Invasion
Invertebrates
Mussel
description In 1981, <i>Corbicula fluminea</i> (Müller, 1774) and <i>C. largillierti</i> (Philippi, 1844) were recorded at the Río de la Plata River. During the 1980’s, <i>C. largillierti</i> was found on a continuous fringe in the shore of that river, while <i>C. fluminea</i> was only found North of Buenos Aires’ harbor. Ten years later, <i>C. fluminea</i> spread to Punta Indio, while <i>C. largillierti</i> remained restricted to tributary streams. The density and size frequency distribution of both species were compared with previous data from samples performed in the same area in 1985–1989. The aim of this research was to determine whether the densities of both species decreased; whether <i>C. fluminea</i> is still more abundant than <i>C. largillierti</i>; and whether the size frequency distributions indicate different population structures from those observed in the end of the 1980’s. Nine localities from the river shore were sampled, and each individual was identified and measured. The size of <i>C. fluminea</i> varied between 2 and 39 mm, showing the highest frequency of individuals between 20 and 25 mm; furthermore the density decreased 90% in 2015/2016. No specimens of <i>C. largillierti</i> were found. In conclusion, the populations of Corbicula inhabiting the Río de la Plata River are retracting.
format Articulo
Articulo
author Reshaid, Yamila
Cao, Luciana
Brea, Francisco
Ortíz Blanche, María
Torres, Santiago
Darrigran, Gustavo
author_facet Reshaid, Yamila
Cao, Luciana
Brea, Francisco
Ortíz Blanche, María
Torres, Santiago
Darrigran, Gustavo
author_sort Reshaid, Yamila
title Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
title_short Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
title_full Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
title_fullStr Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
title_full_unstemmed Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
title_sort variation in the distribution of corbicula species (mollusca: bivalvia: corbiculidae) after 25 years of its introduction in the río de la plata, argentina
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87718
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