Rotifers of Portuguese reservoirs in river Tejo catchment : Relations with trophic state

Twelve portuguese reservoirs were investigated in 1995 and 1996. These reservoirs suffer from the influence of several human activities. As a consequence, several reservoirs in the Tejo River basin are progressing towards eutrophication. The rotifer community was analysed using a Cluster Analysis an...

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Detalhes bibliográficos
Autores: Baião, C., Boavida, Maria-José
Formato: artículo
Fecha de publicación:2005
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:26142
Acesso em linha:https://ddd.uab.cat/record/26142
Access Level:acceso abierto
Palavra-chave:Rotífers
Estat tròfic
Anàlisi de correspondència canònica (CCA)
Rotíferos
Estado trófico
Análisis de Correspondencia Canónica (CCA)
Rotifers
Trophic state
Canonical Correspondence Analysis (CCA)
Descrição
Resumo:Twelve portuguese reservoirs were investigated in 1995 and 1996. These reservoirs suffer from the influence of several human activities. As a consequence, several reservoirs in the Tejo River basin are progressing towards eutrophication. The rotifer community was analysed using a Cluster Analysis and a Canonical Correspondence Analysis (CCA). These analyses permitted the depiction different groups according to rotifer species distribution and abundance. These groups reflected, in general, differences of trophic state among reservoirs and seasonal variation. The results of the present study point to gradual responses of rotifer communities to eutrophication.