Current distribution of the invasive mollusk Corbicula fluminea (O.F. Müller, 1774) (Bivalvia, Cyrenidae) in Brazil, including a new record from the state of Piauí

Abstract

Corbicula fluminea is an invasive clam originally from Asia that threatens the biodiversity of freshwater communities around the world. It has greatly expanded in Brazil since its first record. We report here the occurrence of C. fluminea from Piauí state, Parnaíba river basin and, provide an assessment of its current distribution in Brazil. The compiled data include 382 records in 22 states and the Federal District, encompassing a variety of ecosystems. These results contribute to a discussion about the invasion and expansion process of C. fluminea in Brazil over time.

Malacofauna of lotic environments in the Northeast and Brazilian semiarid region: current knowledge and new records

“…4) e20210140 9 | 16 may contribute to future research and to the species conservation and the environments they occupy, especially in a region such as the Brazilian semiarid region. Studies focusing on mollusks are found in the literature (Coelho et al 2018, Santana et al 2013, Miyahira et al 2020, Leal et al 2021, however, the present study is the fi rst to gather and increase the information available on the fauna of limnic mollusks for the Northeast and Brazilian semiarid regions.…”

“…Its distribution is expanding in the Brazilian territory and found in all regions (Freire & Marafon 2018, Darrigran et al 2020, Leal et al 2021. Its occurrence in the Northeast and semiarid region is well documented and indicates a constant expansion rate (Leal et al 2021, Darrigran et al 2020). This species is generally observed in high population densities, it can change the dynamics of the environments in which they live and affect the fauna of other species of limnic mollusks (Ilarri & Sousa 2012, Santana et al 2013, Gomes et al 2016, Leal et al 2021.…”

“…The expressive number of studies focusing on vector species of parasites and non-native species are responses to the knowledge bottleneck problem on the diversity of mollusks in the region. Add to that, the social and environmental concern of researchers, considering the Northeast has the lowest Human Development Index (HDI) of the country (United Nations Development Program 2016) and has urgent demands in these areas (Katz 2018, Leal et al 2021.…”

“…Unlike P. dorbignyi, the asian clam Corbicula fluminea is more resistant and tolerates a wide range of environmental conditions (Coelho et al 2018, Cao et al 2017. Its distribution is expanding in the Brazilian territory and found in all regions (Freire & Marafon 2018, Darrigran et al 2020, Leal et al 2021. Its occurrence in the Northeast and semiarid region is well documented and indicates a constant expansion rate (Leal et al 2021, Darrigran et al 2020).…”

First record and range extension of Corbicula fluminea (Müller, 1774) (Bivalvia, Cyrenidae) in the Chapada dos Veadeiros region, Goiás, Brazil

“…Haag et al (2020) found that C. fluminea can be a major factor in the decline of native populations of freshwater mussels worldwide. This is the most important AIS in the conservation perspective for riverine ecosystems due to its high invasive potential (Leal et al 2021). The first known record of the introduction of this species was in North America in the 1930s and it has since become the dominant invasive mollusk in that country (Mayfield et al 2021).…”