Fecha/hora: 12/06/2024 05:19:43

Biblioteca(s): | INIA La Estanzuela; INIA Las Brujas.
Fecha corriente: | 21/02/2014
Fecha de la última actualización: | 24/06/2021
Autoria: | CARRASCO-LETELIER, L.; EGUREN, G.; TEIXEIRA DE MELLO, F.; GROVES, P.A.
Afiliación: | LEONIDAS CARRASCO-LETELIER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Preliminary field study of hepatic porphyrin profiles of Astyanax fasciatus (Teleostei, Characiformes) to define anthropogenic pollution.
Año de publicación: | 2006
Fuente/Imprenta: | Chemosphere, 2006, v. 62, n. 8,  p. 1245-1252. Doi: https://doi.org/10.1016/j.chemosphere.2005.07.005
ISSN: | 0045-6535
DOI: | 10.1016/j.chemosphere.2005.07.005
Idioma: | Inglés
Notas: | Article history: Received 5 August 2004, Revised 10 June 2005, Accepted 1 July 2005, Available online 8 September 2005.

Contenido:

ABSTRACT.
The implementation of eco-toxicological assessment in South America is presently limited due to significant scientific information gaps concerning native species and their potential use as biomarkers. Recently, a common southern hemisphere fish species, Astyanax fasciatus, has been pointed out as a potential bio-indicator to anthropogenic pollution. This is a small, abundant, Neotropical characid, which is widely distributed from Central America south, to the Rio de la Plata Basin of western Uruguay. Our study found a statistically significant increase of coproporphyrin, uroporphyrin and protoporphyrin concentrations in hepatic tissues of A. fasciatus collected from a stream segment with high anthropogenic disturbance (due mainly to agricultural derivatives and motor vehicle transportation activities). Although the area studied showed differences in up and downstream limno-chemical parameters, these differences were not related to the increase of hepatic porphyrin concentrations. Based on the results of our study, we conclude that A. fasciatus is a good bio-indicator of exposure to environmental contaminants, and we propose that this abundant fish species be considered as a sentinel organism for monitoring potential disturbances to freshwater ecosystems. 
© 2005 Elsevier Ltd. All rights reserved.

Palabras-Clave: | Astyanax; ASTYANAX FASCIATUS; ECOTOXICOLOGÍA; MARCADORES BIOQUÍMICOS; Pollution; PORFIRINAS; Porphyrins.
Thesagro: | PECES DE AGUA DULCE; POLUCIÓN DEL AGUA.

Categoría del tema:

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T01 Polución

Registro original: | INIA Las Brujas (LB)

Ejemplares:

LB - (13166-1) - ADD - AP - PP - PP/Chemosphere/2006 -  -  - DIS
LE - (49917-1) - ADD - AP - PP - Chemosphere, 2006, -  -  - DIS