Corbicula spp. mean density at sampled localities and previous density values for the same localities (Darrigran 1992b). (★) Presence of C. largillierti in 80’s; (▲) sporadic presence of C. fluminea in 80’s.

 
 
  Part of: Reshaid Y, Cao L, Brea F, Blanche MO, Torres S, Darrigran G (2017) Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina. Zoologia 34: 1-6. https://doi.org/10.3897/zoologia.34.22181