DESCRIPCIÓN DE LAS ALTERACIONES DE EMBRIONES DE Hyla labialis EXPUESTOS A Hg2*, Cl- Y N03-

Hylalabialis embryowereexposed to 1.23, 1.47, 2.47, 2.95, 3.7,4.43,4.94, and5.91 ppmHg2'; 0.26, 0.52, 0.78 and 1.04 ppm Cl· and 0.38, 0.76, 1.14 and 1.53 ppm N03-, separated starting of the middle and belated blastula, during 12 days of continuosexposition. Employ mayor values of mortality were...