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A preliminary fishery quality index for Portuguese streams IPB - Escola Superior Agrária
Oliveira, João M.; Ferreira, Maria T.; Morgado, Paula; Hughes, Robert M.; Teixeira, Amílcar; Cortes, R.; Bochechas, Jorge.
There is a need to quantify the multivariate quality of a recreational fishery at the site scale to better communicate the relative quality among sites to the public and anglers. Borrowing on the general approach of multimetric indices of biotic integrity (IBIs), we developed fishery quality indices (FQIs) from species quality indices (SQIs) based on measures of fish abundance and size structure for northern and central Portuguese streams. Our FQIs showed regional patterns indicating a range in fishery quality. Higher coldwater FQI scores were mostly found in the northwestern (Minho and Lima), northeastern Douro, and northern Tagus basins. Higher warmwater FQI scores occurred in the eastern Tagus basin. The species that contributed the most to warmwater...
Tipo: Article
Ano: 2009 URL: http://hdl.handle.net/10198/4626
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