Acute toxicity of copper (Cu 2+ ) on postlarvae of river prawn Cryphiops caementarius (Natantia, Palaemonidae)
Copper toxicity is evaluated on the river prawn postlarvae, Cryphiops caementarius, using acute toxicity tests, to determine lethal concentration (96-LC50). The postlarvae were very sensitive to copper with 96-LC50 values of 0,546 mg.l-1. Survival and swimming activity diminish with the increase of copper concentrations. Concentrations of 1,0 and 2,0 mg.l-1 were dangerously pollut- ant (63,3 and 100% mortality for 96 h), concentrations of 0,16 and 0,25 mg.l-1 were tolerable (0% mortality for 48 h).
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| Format: | Digital revista |
| Language: | spa |
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Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas
2007
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| Online Access: | https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/1758 |
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