Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)

Corbicula fluminea is an aggressive invasive species of bivalve that arrived into the Río de la Plata River between the late 60’s and early 70’s, and dispersed widely throughout the Neotropical region, evidencing a great adaptive flexibility to different environmental conditions. This species is a f...

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Autores principales: Cao, Luciana, Damborenea, María Cristina, Penchaszadeh, Pablo, Darrigran, Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Zoología
Corbicula
Reproduction
Unstable environment
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87318
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87318
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Corbicula
Reproduction
Unstable environment
spellingShingle Zoología
Corbicula
Reproduction
Unstable environment
Cao, Luciana
Damborenea, María Cristina
Penchaszadeh, Pablo
Darrigran, Gustavo
Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)
topic_facet Zoología
Corbicula
Reproduction
Unstable environment
description Corbicula fluminea is an aggressive invasive species of bivalve that arrived into the Río de la Plata River between the late 60’s and early 70’s, and dispersed widely throughout the Neotropical region, evidencing a great adaptive flexibility to different environmental conditions. This species is a functional hermaphrodite with larval incubation inside the inner demibranch. Despite its widespread distribution, there are no previous studies of complete gonadal histology and reproductive cycle for this species in the Neotropical region. In this study, the reproductive dynamics of C. fluminea in a temperate region, the Santa Catalina Pampean stream, Argentina, is described. Samples of 20–30 individuals were collected monthly from April 2003-April 2005 and processed using traditional histological techniques. During the two years of this study, seven spawning events were recognized. Three major spawns occurred in spring and summer, and other four minor ones during summer and autumn. Events of oocyte recovery were observed after spawning. A high number of incubating individuals was detected. The results stressed the difficulty of identifying a particular pattern of gamete release and of spawning behaviour in this invasive species, especially when inhabiting an unstable environment.
format Articulo
Articulo
author Cao, Luciana
Damborenea, María Cristina
Penchaszadeh, Pablo
Darrigran, Gustavo
author_facet Cao, Luciana
Damborenea, María Cristina
Penchaszadeh, Pablo
Darrigran, Gustavo
author_sort Cao, Luciana
title Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)
title_short Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)
title_full Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)
title_fullStr Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)
title_full_unstemmed Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region)
title_sort gonadal cycle of corbicula fluminea (bivalvia: corbiculidae) in pampean streams (southern neotropical region)
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87318
work_keys_str_mv AT caoluciana gonadalcycleofcorbiculaflumineabivalviacorbiculidaeinpampeanstreamssouthernneotropicalregion
AT damboreneamariacristina gonadalcycleofcorbiculaflumineabivalviacorbiculidaeinpampeanstreamssouthernneotropicalregion
AT penchaszadehpablo gonadalcycleofcorbiculaflumineabivalviacorbiculidaeinpampeanstreamssouthernneotropicalregion
AT darrigrangustavo gonadalcycleofcorbiculaflumineabivalviacorbiculidaeinpampeanstreamssouthernneotropicalregion
bdutipo_str Repositorios
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