This study intends to provide information on how precipitation variation may impact environmental parameters (total phosphorus, water temperature, pH, conductivity, dissolved oxygen, Secchi depth, chlorophyll a and Anabaena abundance) and crustacean zooplankton composition and abundance. Methods: Samples were collected monthly from October 2000 to September 2002 and from October 2007 to September 2009 at one si...
Azibo is a meso-eutrophic reservoir located in the Portuguese part of R. Douro catchment (Latitude: 41 D34'32, 25"N; longitude: 6- 53'51, 63"W; altitude: 624m). As it is utilized mainly for recreation and for some urban water supply the water level variations are not very accentuated. This fact allows the evaluation of the effects of environmental variations and of other disturbance phenomena on the reservoir ...
As comunidades de macroinvertebrados bentónicos constituem uma fonte de informação importante na avaliação da integridade ecológica de ecossistemas lóticos. A bacia hidrográfica do Sabor, situada no Nordeste de Portugal, possui uma heterogeneidade edafo-climática assinalável associada a diferentes usos do solo e demais actividades antrópicas que induzem perturbações no meio aquático. Na actualidade, está em fas...
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