Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/6404

Title: Desenvolvimento de um índice piscícola para os rios de Portugal Continental.
Authors: Matono, Paula
Ilhéu, Maria
Formigo, Nuno
Ferreira, Maria Teresa
Almeida, Pedro Raposo
Cortes, Rui
Bernardo, João
Keywords: Biotic Index
Fish fauna
Portuguese Rivers
Issue Date: 2009
Publisher: Revista Recursos Hidricos
Citation: Matono, P, Ilhéu, M., Formigo, N., Ferreira, M.T., Almeida, P., Cortes, R. & Bernardo. J.M. (2009). Desenvolvimento de um índice piscícola para os rios de Portugal Continental. Revista Recursos Hídricos, 30 (2): 75-82.
Abstract: The Water Framework Directive advocates an assessment of ecological quality of rivers based on hydromorphology and biological elements, including fish fauna. This topic has been poorly developed in Portugal, and the existing approaches are mainly based on expert knowledge and not on sensitivity analysis. This work presents the biological metrics responsive to different types of anthropogenic pressures and the biotic index to assess the ecological status of Portuguese rivers based on ichthyofauna. Sampling took place from 2004 to 2006, during Spring, in 397 sites of the main basins of Portugal. The selection of metrics was based on correlation analysis between metrics and pressure variables. Based on the available data and on the obtained results, the assessment of the ecological status using the fish fauna is feasible in three out of five Groups/Types of Rivers previously identified for this biological group;Group North medium and large drainage area (N2 e N1>100km2), Group South mix (N4, S1>100km2, S2 e S3) and Type South medium and large drainage area (S1>100km2).
URI: http://hdl.handle.net/10174/6404
Type: article
Appears in Collections:PAO - Publicações - Artigos em Revistas Nacionais Com Arbitragem Científica
ICAAM - Publicações - Artigos em Revistas Nacionais Com Arbitragem Científica

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