Preliminary field study of hepatic porphyrin profiles of Astyanax fasciatus - Teleostei, Characiformes - to define anthropogenic pollution / Leonidas Carrasco-Letelier ...[et al.].
Groves, Phillip a.
Preliminary field study of hepatic porphyrin profiles of Astyanax fasciatus - Teleostei, Characiformes - to define anthropogenic pollution / Leonidas Carrasco-Letelier ...[et al.]. - 8 páginas
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.
Astyanax Fasciatus
Toxicología
Toxicity
Contaminantes Ambientales
Pollution
Peces de Agua Dulce
Inland Waters
Freshwater Fish
Argentina
Uruguay
Preliminary field study of hepatic porphyrin profiles of Astyanax fasciatus - Teleostei, Characiformes - to define anthropogenic pollution / Leonidas Carrasco-Letelier ...[et al.]. - 8 páginas
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.
Astyanax Fasciatus
Toxicología
Toxicity
Contaminantes Ambientales
Pollution
Peces de Agua Dulce
Inland Waters
Freshwater Fish
Argentina
Uruguay