Carrasco-Letelier, Leonidas
  Preliminary field study of hepatic porphyrin profiles of Astyanax fasciatus - Teleostei, Characiformes - to define anthropogenic pollution / Leonidas Carrasco-Letelier ...[et al.].
  En: Chemosphere / Elsevier Science Publishers. -- Vol. 62, no. 8 (2006). -- Amsterdam : Elsevier Science Publishers, 2006

  Disponible en caja 17 no 4 de INICNE

  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.

  1. PECES DE AGUA DULCE; 2. TOXICOLOGIA; 3. CONTAMINANTES AMBIENTALES; 4. INLAND WATERS; 5. FRESHWATER FISH; 6. TOXICITY; 7. POLLUTION; 8. ASTYANAX FASCIATUS; 9. ARGENTINA; 10. URUGUAY I. Eguren, Gabriela II. Teixera de Mello, Franco III. Groves, Phillip A.

  (61) Inv.: 01-R00297 S.T.: 17 [04] CAR ej.1

1 Ejemplar

U. Info.	Inventario	S.T. / Ubicación
ICTIO	01-R00297	17 [04] CAR ej.1