First Record in Colombia of Corbicula Fluminea (Mollusca: Bivalvia: Corbiculidae), an Invasive Species

Abstract

The bivalve Corbicula fluminea Müller is recorded for the first time in Colombia, in the National Park Isla de Salamanca. This protected area includes freshwater channels and mixohaline lagoons influenced by waters of both the Magdalena River and the Caribbean Sea. This exotic bivalve occurs locally in freshwater channels close to the Magdalena River as well as in the latter, whereas another corbiculid native species, Polymesoda solida, is commonly found in the mixohaline lagoons. Densities of C. fluminea ranged from 10 to 100 ind/m2 along with low numbers of P. solida. Lengths ranged form 10 to 43 mm in a predominant muddy substrate. Local fishermen have stated that C. fluminea was established approximately in 1992; this clam is being artisanally exploited for human consumption along with P. solida, although fishery is mainly focused on the latter, due to its larger size.

Causes and consequences of recent degradation of the Magdalena River basin, Colombia

“…There are currently many (> 50) alien species introduced in the Magdalena River, including fish (e.g., the common carp Cyprinus carpio , the black bass Micropterus salmoides , the Yellow Tilapia Coptodon rendalli ; and the Basa catfish P. hypophthalmus ;Jimenéz‐Segura and Lasso 2020), macrophytes (e.g., water hyacinth E. crassipes ; and Brazilian Elodea Egeria densa ; Carrillo et al 2006; Salgado et al 2019), mollusks (e.g., the bivalve Corbicula fluminea ; De la Hoz‐Aristizabal 2008), and mammals (water buffalo Bubalus bubalis ; and African hippo H. amphibius ; Shurin et al 2020; Restrepo‐Calle and Cadena 2021). Many of these have the potential to become or are already considered IAS (Gutierrez et al 2012; Jiménez‐Segura and Lasso 2020).…”