A preliminary index of biotic integrity for monitoring the condition of the Rio Paraiba do Sul, southeast Brazil.
Environ Manage
; 32(4): 516-26, 2003 Oct.
Article
en En
| MEDLINE
| ID: mdl-14986900
The biodiversity of many Brazilian rivers is seriously threatened by industrial and municipal pollution, and Rio Paraiba do Sul, located between two major industrial centers is one example of this situation. A survey of the fish assemblage was conducted from October 1998 to September 1999 and the data were used to develop an index of biotic integrity (IBI). We sampled three zones in bracketing a large urban-industrial complex to evaluate water quality changes and the usefulness of the IBI as a monitoring tool. Water quality was classified as poor upstream of the effluent discharges, very poor near the discharges, and poor-fair downstream of the discharges, with this latter situation revealing the current biological capacity of the river. Physical and chemical habitat characteristics were also measured at each site to construct an independent environmental index to validate the IBI. The habitat and IBI indices were highly correlated, suggesting this IBI would be applicable to other large rivers in southeast Brazil.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Contaminantes del Agua
/
Monitoreo del Ambiente
/
Ríos
/
Peces
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Environ Manage
Año:
2003
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Estados Unidos