Toxicological Effect of Aqueous Samplings of Junin Lake, Peru, on Chironomus calligraphus

Autores

  • José Iannacone Laboratorio de Invertebrados, Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Lima, Perú ; Laboratorio de Ecofisiología Animal, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), Lima, Perú
  • N. Salazar Laboratorio de Ecofisiología Animal, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), Lima, Perú

DOI:

https://doi.org/10.5132/jbse.2007.03.003

Palavras-chave:

Chironomus, ecotoxicity, ecotoxicological bioassay, environmental risk, mean lethal concentration, water pollution

Resumo

Chironomus calligraphus (Goeldi 1905) (Diptera: Chironomidae) is a characteristic species of natural environment and of treated domestic waste water of Peru. Acute toxic effects of aqueous samples from three regions of the second lake of higher area in Peru, Junin Lake, between July 2000 to January 2001 on larvae of C. calligraphus at 48 h exposure were evaluated. The lethal concentration medium (LC50) employing C. calligraphus at Junin Lake showed the following order of toxicity: Upamayo Reservoir (LC50 = 14.79%) > Upamayo Bridge (LC50 = 24.72%) > Pari (LC50 = 41.81%). The highest toxic value of LC50 was observed on December 2000 and the lowest toxic value in January 2001. Fe3+, Pb2+ and Cd2+ were found over the maximum permissible levels of water quality Class VI (zone of preservation of aquatic wildlife) according to Peruvian legislation. C. calligraphus showed to be a suitable species for ecotoxicological assays aimed to analyze water samples.

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Publicado

2007-10-10

Como Citar

Iannacone, J., & Salazar, N. (2007). Toxicological Effect of Aqueous Samplings of Junin Lake, Peru, on Chironomus calligraphus. Ecotoxicology and Environmental Contamination, 2(3), 219–227. https://doi.org/10.5132/jbse.2007.03.003

Edição

v. 2 n. 3 (2007)

Seção

Artigos

Licença

Copyright (c) 2007 Ecotoxicology and Environmental Contamination

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