Corbicula fluminea (Muller, 1774)

Asian clam, Asiatic clam
Corbicula_fluminea_01 Corbicula_fluminea_02

Description 1

Small clam, generally around 25 mm but can be up to 4-5 cm long, with a solid, robust, triangular or round concave shell ("inflated") and prominent umbos. Very marked sculpture, with between 7 to 14 per cm regular, concentric, characteristic ribs. Shiny, brown (sometimes yellow) shell with yellow or green tinges, which are occasionally blackish or nearly black.

Biology 1

Sexual reproduction, they are hermaphrodites and capable of self-fertilisation (they produce up to 10,000 larvae in their lifespan). Larvae are released 4-5 days after incubation, rooting themselves to the substrate where they mature for 3-6 months. In favourable conditions they reproduce twice a year. A filter-feeder species.

Habitat 1

They are found in lakes and waterways of any size, with clear, oxygenated waters that have sand, clay or gravel bottoms, etc. (thin, thick, clay substrates, etc.) and they also appear in irrigation and drainage canals. They do not root themselves to hard substrates.

Sources 1

Spanish Catalogue of Exotic Invasive Species and Document sheets of the Exotic Invasive Species Act 630/2013 (GEIB)

Spanish Catalogue of Exotic Invasive Species - Non-arthropod invertebrates 1

http://www.mapama.gob.es/es/biodiversidad/temas/conservacion-de-especies/especies-exoticas-invasoras/ce_eei_invertebrados_na.aspx

Fuentes y Créditos

  1. Adaptado por INVASORES - administrador de un trabajo de (c) cartotragsatec, algunos derechos reservados (CC BY-SA), http://natusfera.gbif.es/guide_taxa/1967

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