Impact of Tehri Dam on aquatic macroinvertebrate diversity of Bhagirathi, Uttarakhand (India).
Artigo
em Inglês
| IMSEAR
| ID: sea-114061
ABSTRACT
Aquatic macroinvertebrate diversity in the Bhagirathi river was monitored for the period of twelve months (September 2004 to August 2005) for assessing the impact of Asia's highest dam, Tehri Dam. Comparative data on diversity of macroinvertebrates revealed that the number of taxa in the downstream stretch, especially close to the dam was significantly reduced. The velocity of water current, hydromedian depth, turbidity, dissolved oxygen and the bottom substrates of the river were found drastically influenced due to the construction activities of the dam. Macroinvertebrate diversity (Shannon-Wiener Index) was altered from 3.44 to 1.98. The members of ephemeroptera and trichoptera were drastically influenced in comparison to other macroinvertebrates.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Oxigênio
/
Movimentos da Água
/
Poluentes Químicos da Água
/
Água
/
Monitoramento Ambiental
/
Modelos Estatísticos
/
Ecossistema
/
Conservação dos Recursos Naturais
/
Biodiversidade
/
Rios
Tipo de estudo:
Estudo prognóstico
/
Fatores de risco
País/Região como assunto:
Ásia
Idioma:
Inglês
Ano de publicação:
2008
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS