Seasonal variation in larval density of Limnoperna fortunei (Bivalvia, Mytilidae) in the Iguaçu and Paraná rivers, in the region of Foz do Iguaçu, Paraná, Southern Brazil

Débora Pestana*, Marcio Roberto Pie, Antonio Ostrensky, Walter Antonio Boeger, Cleverson Andreoli, Francisco Franceschi, Patrícia Lagos

*Corresponding author for this work

Research output: Contribution to journalArticle (journal)peer-review

13 Citations (Scopus)

Abstract

The larval density of the invasive mussel Limnoperna fortunei (Bivalvia, Mytilidae) was monitored from January 2005 to February 2006 at two points along the Paraná and the Iguaçu Rivers, near Foz do Iguaçu, PR, Brazil. The results indicated two density peaks in the Paraná River: a lower peak between March and June and a higher peak in October. In the Iguaçu River, the values were much lower, yet they also showed a peak between September and October. A reduction in the reproductive activity was observed in both the rivers between July and August. The average larval density at the collection point in the Paraná reached 948.5 larvae/m3, with a peak of 2,999.5 larvae/m3 in October. The present study represented the first quantification of the larval density of L. fortunei in the lower reaches of the Iguaçu River, downstream of the Iguaçu falls.

Original languageEnglish
Pages (from-to)607-612
Number of pages6
JournalBrazilian Archives of Biology and Technology
Volume51
Issue number3
DOIs
Publication statusPublished - 1 Jun 2008

Keywords

  • Biofouling
  • Golden mussel
  • Invasive species
  • Larval density

Fingerprint

Dive into the research topics of 'Seasonal variation in larval density of Limnoperna fortunei (Bivalvia, Mytilidae) in the Iguaçu and Paraná rivers, in the region of Foz do Iguaçu, Paraná, Southern Brazil'. Together they form a unique fingerprint.

Cite this