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A predictive model for freshwater bioassessment (Mondego River, Portugal)
Feio, Maria; Reynoldson, Trefor; Ferreira, Verónica; Graça, ManuelAbstract We sampled macroinvertebrates at 75 locations in the Mondego river catchment, Central Portugal, and developed a predictive model for water quality assessment of this basin, based on the Reference Condition Approach. Sampling was done from June to September 2001. Fifty-five sites were identified as “Reference sites” and 20 sites were used as “Test sites” to test the model. At each site we also measured...
Effect of Seasonal Changes on Predictive Model Assessments of Streams Water Qua...
Feio, Maria João; Reynoldson, Trefor B.; Graça, Manuel A.In this study we investigate how seasonal variability in aquatic macroinvertebrate communities affects the performance of a predictive model developed to assess environmental quality. Macroinvertebrates were sampled from nine not visibly disturbed sites located in different streams of the Mondego catchment across a full year. Organisms were identified to the lowest practicable taxonomic level and their abundanc...
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