Copper toxicity on juveniles of Hyalella pseudoazteca González and Watling, 2003.
The aim of this work is to evaluate the toxic effect of water and sediment contaminated with Cu(2+) on the survival and growth of juveniles of Hyalella pseudoazteca. The LC(50) 96 h for Cu(2+) in moderately hard water was 0.17 mg/L. The concentration of 100 mg Cu(2+)/kg in sediment was found to have an inhibitory growth effect. This study provides information on the toxic effects of Cu(2+) on a native benthic species occurring in the Pampean region, Argentina and contributes to validate, in this region, the interim use of Cu(2+) values recommended by the sediment quality guidelines for the Northern hemisphere.
Programa de Ecofisiología Aplicada, Dpto. Ciencias Básicas, Universidad Nacional de Luján, CC 221, Lujan, Argentina.
Anabella
A
Giusto
Lucrecia
L
Ferrari
D033304:Amphipoda / Q000254:growth & development / Q000502:physiology*; D000818:Animals; D002627:Chemistry, Physical; D003300:Copper / Q000032:analysis / Q000633:toxicity*; D019015:Geologic Sediments / Q000032:analysis; D007928:Lethal Dose 50; D010100:Oxygen / Q000032:analysis; D016019:Survival Analysis; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*; D014877:Water Pollution, Chemical / Q000009:adverse effects* / Q000032:analysis
D014874:Water Pollutants, Chemical; D003300:Copper; D010100:Oxygen