Figure 1 from: 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

Figure 1 Sampling localities and comparison of densities means, data from Darrigran (1992b) vs. data from present study. Black bars: C. largillierti in 80's; White bars: C. fluminea in 80's; Grey bars: C. fluminea 2015/2016. (★) Sporadic presence of C. fluminea in 80's.