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Is Aluminum Innocuous to Zooplankton at pH Below 6?
García-García, G; Jiménez-Contreras, J; Vargas-Hernández, A A; Nandini, S; Sarma, S S S.
Afiliação
  • García-García G; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, AP 314, CP 54090, Los Reyes, Tlalnepantla, Mexico, Mexico. garcia_garciag@comunidad.unam.mx.
  • Jiménez-Contreras J; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, AP 314, CP 54090, Los Reyes, Tlalnepantla, Mexico, Mexico.
  • Vargas-Hernández AA; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, AP 314, CP 54090, Los Reyes, Tlalnepantla, Mexico, Mexico.
  • Nandini S; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, AP 314, CP 54090, Los Reyes, Tlalnepantla, Mexico, Mexico.
  • Sarma SS; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, AP 314, CP 54090, Los Reyes, Tlalnepantla, Mexico, Mexico.
Bull Environ Contam Toxicol ; 98(4): 489-495, 2017 Apr.
Article em En | MEDLINE | ID: mdl-28188321
Aluminum (Al) use has increased greatly during the last two decades, yet little information is available on its toxic effects in relation to pH particularly on zooplankton. In this work, we determined the acute toxicity (LC50) and life table responses for Moina micrura exposed to 0.008, 0.016 and 0.08 mg of Al L-1 at pH of 5, 6 and 7. The age-specific survivorship and reproduction showed a steep decline (80% mortality by the second day) at pH 5, independent of Al level. Both gross and net reproductive rates were significantly lower at pH 6 compared to pH 7, regardless of Al concentration. At pH 7 the rate of population increase of M. micrura was not significantly influenced by the Al level, while at pH 6 it was significantly lower (p < 0.05), suggesting that M. micrura is sensitive to changes in Al under slightly acidic conditions.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reprodução / Zooplâncton / Alumínio / Concentração de Íons de Hidrogênio Limite: Animals Idioma: En Revista: Bull Environ Contam Toxicol Ano de publicação: 2017 Tipo de documento: Article País de afiliação: México País de publicação: Estados Unidos
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reprodução / Zooplâncton / Alumínio / Concentração de Íons de Hidrogênio Limite: Animals Idioma: En Revista: Bull Environ Contam Toxicol Ano de publicação: 2017 Tipo de documento: Article País de afiliação: México País de publicação: Estados Unidos