Acute Toxicity of Cd(II), Cr(VI), and Ni(II) to the Golden Mussel Limnoperna fortunei (Dunker 1857)

SILVESTRO, ANAHÍ; BÁLSAMO CRESPO, EMILIANO; HIDALGO, KEILA; PEREYRA, PATRICIO JAVIER; BULUS ROSSINI, GUSTAVO

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY

SPRINGER

Lugar: Berlin; Año: 2020

0007-4861

In this study we test the sensitivity of three sizes of golden mussel (Limnoperna fortunei), an introduced species in Argentina, to a 96-h exposure to Cd2+, Cr6+, and Ni2+. We also analysed the relative sensitivity of L. fortunei compared to otherfreshwater bivalve equivalent sensitivity data. The ANOVA results showed that both factors, heavy metal and size, hadsignifcant efects (p = 0.0013 and p = 0.0091, respectively) on the mortality of the golden mussel. Tukey?s test showedsignifcant diferences for Cr6+ treatment and the smallest size class (7 mm ±1). The relative sensitivity analysis showed thatLC50 values for the smallest size class of L. fortunei exposed to Ni2+ and Cd2+ were in the low range, with values of 11.40mg/L and 12.65 mg/L, respectively. In the case of Cr6+ (1.66 mg/L), its LC50 was in the medium-low range of the freshwaterbivalve sensitivity distribution.