Abstract

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

Highlights

  • The Asiatic clam, Corbicula fluminea (Müller, 1774) naturally inhabits freshwater bodies from Southeast Asia, Africa, India, Pacific Islands and Australia (McMahon 1983, 2000)

  • In South America, two species of Corbicula Megerle, 1811, C. fluminea and C. largillierti (Philippi, 1844), arrived in the Río de la Plata River in the 1970’s, according to Ituarte (1981), who mentioned the presence of Corbicula sp. for the first time in South

  • Corbicula fluminea was present in seven sampling sites (Table 1)

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Summary

Introduction

The Asiatic clam, Corbicula fluminea (Müller, 1774) naturally inhabits freshwater bodies from Southeast Asia, Africa, India, Pacific Islands and Australia (McMahon 1983, 2000). This species arrived in North America in 1920 (McMahon 2000) causing important environmental and economic problems, which resulted from its ability to reproduce quickly, and its capacity to adapt to different ecological conditions (Britton and Morton 1979, McMahon 1983). Veitenheimer-Mendes and Olazarry (1983) provided new records from the Uruguay River (34°02’S, 58°15’W), Uruguay (Colonia Department) and in the Río de la Plata River (34°27’S, 57°15’W), Uruguay (San José Department)

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