Micronuclei and fluctuating asymmetry in brown trout (Salmo trutta): complementary methods to biomonitor freshwater ecosystems.
Mutat Res
; 412(3): 219-25, 1998 Feb 13.
Article
en En
| MEDLINE
| ID: mdl-9600689
In this work we measured both micronuclei number in kidney erythrocytes and fluctuating asymmetry in wild brown trout (Salmo trutta), caught in different fluvial ecosystems of Asturias (northern Spain) characterized by different levels of anthropic influence. Brown trout samples from rivers with high anthropic influence possessed significantly higher averages of both micronuclei and fluctuating asymmetry than brown trout samples from less anthropic-influenced rivers. These findings demonstrated the sensitivity of the micronucleus test in kidney erythrocytes to biomonitor freshwater ecosystems. The positive association found between micronuclei average and fluctuating asymmetry at the populational level suggests that fluctuating asymmetry tests could be potential indicators of environmental threat. Variation of fish asymmetry with ageing indicates that fluctuating asymmetry surveys of wild populations should be carried out in trouts of the same age class.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trucha
/
Contaminantes Químicos del Agua
/
Monitoreo del Ambiente
/
Tipificación del Cuerpo
/
Micronúcleos con Defecto Cromosómico
/
Agua Dulce
Límite:
Animals
Idioma:
En
Revista:
Mutat Res
Año:
1998
Tipo del documento:
Article
País de afiliación:
España
Pais de publicación:
Países Bajos