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...
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | Perú |
| Institución: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revistas - Universidad Nacional Mayor de San Marcos |
| Idioma: | español |
| OAI Identifier: | oai:revistasinvestigacion.unmsm.edu.pe:article/1758 |
| Acceso en línea: | https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/1758 |
| Access Level: | acceso abierto |
| Palabra clave: | Toxicidad aguda cobre LC50 postlarvas de Cryphiops caementarius. Acute toxicity copper Cryphiops caementarius postlarvae Cryphiops caementarius postlarvae. |
| Sumario: | 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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