Levels of arsenic, mercury and selenium in Clarias gariepinus from Sagua la Grande River, CubaLázaro Lima, Maria Isabel López-Heras, Zoyne Pedrero, Susana Olivares Rieumont, Yolanda Madrid, Carmen Cámara and Daniel De la RosaAnn. Limnol. - Int. J. Lim., 49 2 (2013) 113-119DOI: https://doi.org/10.1051/limn/2013046